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WO2016169446A1 - Procédé d'attaque pour circuit à pont complet à commutateur logiciel autoadaptatif, et circuit d'attaque à pont complet - Google Patents

Procédé d'attaque pour circuit à pont complet à commutateur logiciel autoadaptatif, et circuit d'attaque à pont complet Download PDF

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Publication number
WO2016169446A1
WO2016169446A1 PCT/CN2016/079522 CN2016079522W WO2016169446A1 WO 2016169446 A1 WO2016169446 A1 WO 2016169446A1 CN 2016079522 W CN2016079522 W CN 2016079522W WO 2016169446 A1 WO2016169446 A1 WO 2016169446A1
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WIPO (PCT)
Prior art keywords
switching device
circuit
control signal
load
full
Prior art date
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Ceased
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PCT/CN2016/079522
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English (en)
Chinese (zh)
Inventor
吴秀昌
吴斌波
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Individual
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Individual
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Definitions

  • the invention relates to the technical field of soft-switching full-bridge circuits, in particular to an adaptive novel soft-switching full-bridge circuit driving method and a full-bridge driving circuit.
  • FIG. 2 is a commonly used transformer-driven full-bridge circuit.
  • the transformer-driven full-bridge circuit of this structure has high transformer cost and unipolar on the primary side due to transformer isolation DC.
  • the pulse is level-shifted (zero-shift problem) after isolation by the transformer, resulting in a serious imbalance of the 4-arm drive voltage, and is exacerbated as the duty cycle deviates from 50%, requiring more complex shifts or clamps. Circuits to solve this imbalance problem.
  • parasitic distribution parameters between the windings of such a circuit which affects the performance, and the dead zone of such a circuit is difficult to adjust, requires complicated processing circuits to be completed, has high cost, and has poor effect, and the difficulty of realizing soft switching is increased. Due to the large size of the transformer and the four bridges driven by a single transformer, the circuit layout is difficult, which is not conducive to miniaturization, simplification, high reliability and low noise of the product.
  • the present invention provides a simple structure, low loss, high reliability, low noise, can work to a higher operating frequency, and is convenient to realize zero voltage of four bridge arms or simultaneously realize zero voltage of four bridge arms. And adaptive zero-current (near zero current) soft-switching adaptive new soft-switching full-bridge circuit driving method and full-bridge driving circuit.
  • One technical solution of the present invention is to provide an adaptive novel soft-switching full-bridge circuit driving method, comprising a full-bridge circuit composed of a first switching device, a second switching device, a third switching device, and a fourth switching device.
  • the first switching device and the third switching device are connected in series
  • the second switching device is connected in series with the fourth switching device
  • the first switching device and the second switching device are respectively connected to one end of a power source
  • the third switching device and the fourth switching device are respectively connected to the other end of the power source.
  • the first external control signal controls the third switching device to be turned on, and forms a first control signal in a connection line between the first switching device and the third switching device. Controlling the second switching device to be turned on, the second switching device, a load circuit having an inductive characteristic, and the third switch forming a working circuit;
  • the first external control signal controls the third switching device to be turned off, forming a second control signal in a connection line between the first switching device and the third switching device, and controlling the The second switching device is turned off;
  • a third control signal is formed in a connection line between the second switching device and the fourth switching device, and the third control signal controls the first switch to be turned on;
  • the second external control signal controls the fourth switching device to be turned on; after the first switching device and the fourth switching device are turned on, current is in the first switching device Forming a working circuit between the load circuit having an inductive characteristic and the fourth switch;
  • the second external control signal controls the fourth switching device to be turned off, forming a fourth control signal in a connection line between the second switching device and the fourth switching device, and controlling the Disconnecting a first switching device, forming a fifth control signal in a connection line between the first switching device and the third switching device, the fifth control signal controlling the second switching device to be turned on;
  • the first external control signal again controls the third switching device to be turned on, and after the second switching device and the third switching device are turned on again, the current is in the second a switching device, the load circuit having an inductive characteristic, and the third switch form a working circuit;
  • the first extraneous control signal and the second extraneous control signal are a set of drive signals including the first dead zone, the second dead zone, and complementary.
  • the load circuit having an inductive characteristic includes a load, and a circuit connected to the load and having an inductive characteristic, the circuit having an inductive characteristic for transmitting energy to the load
  • the full bridge circuit operates in an inductive section of the circuit having inductive characteristics.
  • Another technical solution of the present invention is to provide an adaptive novel soft-switching full-bridge driving circuit, including a full-bridge circuit composed of a first switching device, a second switching device, a third switching device, and a fourth switching device.
  • the first switching device and the third switching device are connected in series, the second switching device is connected in series with the fourth switching device, and the first switching device and the second switching device are respectively connected to one end of a power source,
  • the third switching device and the fourth switching device are respectively connected to the other end of the power source, and further includes a load circuit having an inductive characteristic, the first external control signal is in communication with the third control end of the third switching device, and the second An external control signal is in communication with a fourth control terminal of the fourth switching device; a first node is disposed on a connection line between the first switching device and the third switching device, and the second switching device is a second node is disposed on the connection line between the fourth switching device, and the first control terminal of the first switching device is connected to the second node, the
  • the load circuit having an inductive characteristic includes a load, and a circuit connected to the load and having an inductive characteristic, the circuit having an inductive characteristic for transmitting energy to the load
  • the full bridge circuit operates on an inductive section of the circuit having inductive characteristics; the circuit having inductive characteristics is an LC circuit or an inductor.
  • the load circuit having an inductive characteristic includes a load having an inductive characteristic.
  • a first clamping circuit is further included, two ends of the first clamping circuit are respectively connected to one end of the power source and the second node, and the first clamp output of the first clamping circuit The terminal is connected to the first control terminal.
  • a second clamping circuit is further included, wherein two ends of the second clamping circuit are respectively connected to one end of the power source and the first node, and the second clamping output of the second clamping circuit The terminal is connected to the second control terminal.
  • a first inverter circuit and a third clamp circuit having a positive and negative clamping function, the third clamp circuit being respectively connected to the second node and the first node,
  • the third clamp output terminal of the third clamp circuit is connected to the first control terminal through the first inverter circuit.
  • a second inverter circuit and a fourth clamp circuit having a positive and negative clamping function, the fourth clamp circuit and the second node and the first node respectively
  • the startup resistor is coupled to one end of the power supply, and the fourth clamp output of the fourth clamp circuit is coupled to the second control terminal through the second inverter circuit.
  • the second control end of the second switching device is connected to the first node, and the first external control signal and the second external control signal respectively control the third switch Turning on or off the device, the fourth switching device; during the driving of the load, when the third switching device is turned off, causing the second switching device to be turned off and forming a control signal at the second node to control the first switching device Passing, when the fourth switching device is turned off, causing the first switching device to be turned off and forming a control signal at the first node to control the second switching device to be turned on, thereby implementing the function of the cross-excited driving; and also for the full bridge
  • the drive circuit is extended, and the full-bridge drive circuit is operated in different supply voltage ranges by using a clamp circuit.
  • a third clamp circuit having a positive and negative clamp function and a fourth clamp are also required.
  • the full bridge driving circuit of the invention has the advantages of simple and convenient circuit (zero voltage, zero current) soft switching function, fast switching speed, low loss, low noise, high reliability, and can work at a higher frequency and reduce Small size, large power density, flexible circuit layout and easy application.
  • FIG. 1 is a circuit diagram of a prior art auxiliary power supply bootstrap level shift driving full bridge circuit.
  • FIG. 2 is a schematic circuit diagram of a transformer-driven full bridge circuit in the prior art.
  • FIG. 3 is a block diagram showing the principle of an embodiment of the present invention.
  • FIG. 4 is a schematic view showing the circuit structure of the embodiment shown in FIG.
  • Figure 5 is a schematic diagram of the operational waveform of Figure 4.
  • Figure 6 is a block diagram showing the principle of another embodiment of the present invention.
  • Figure 7 is a block diagram showing the principle of the third embodiment of the present invention.
  • Figure 8 is a block diagram showing the principle of the fourth embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a circuit structure of the embodiment shown in FIG. 8.
  • FIG. 9 is a schematic diagram of a circuit structure of the embodiment shown in FIG. 8.
  • FIG. 10 is a schematic diagram showing another circuit structure of the embodiment shown in FIG.
  • Figure 11 is a block diagram showing the principle of the fifth embodiment of the present invention.
  • Figure 12 is a block diagram showing the structure of the embodiment shown in Figure 10.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
  • installation”, connection”, and connection are to be understood broadly. For example, they may be fixed connections, detachable connections, or integrally connected; they may be mechanical or electrical connections; they may be directly connected It can also be indirectly connected through an intermediate medium, which can be the internal connection between two components.
  • intermediate medium which can be the internal connection between two components.
  • the invention provides an adaptive novel soft-switching full-bridge circuit driving method, and an adaptive novel soft-switching full-bridge circuit driving method, comprising a first switching device, a second switching device, a third switching device and a fourth switching device.
  • a full bridge circuit the first switching device and the third switching device are connected in series, the second switching device is connected in series with the fourth switching device, and the first switching device and the second switching device are respectively One end of the power source is connected, and the third switching device and the fourth switching device are respectively connected to the other end of the power source.
  • the full bridge circuit works according to the following working process. :
  • the first external control signal controls the third switching device to be turned on, and forms a first control signal in a connection line between the first switching device and the third switching device. Controlling the second switching device to be turned on, the second switching device, a load circuit having an inductive characteristic, and the third switch forming a working circuit;
  • the first external control signal controls the third switching device to be turned off, forming a second control signal in a connection line between the first switching device and the third switching device, and controlling the The second switching device is turned off;
  • a third control signal is formed in a connection line between the second switching device and the fourth switching device, and the third control signal controls the first switch to be turned on;
  • the second external control signal controls the fourth switching device to be turned on; after the first switching device and the fourth switching device are turned on, current is in the first switching device Forming a working circuit between the load circuit having an inductive characteristic and the fourth switch;
  • the second external control signal controls the fourth switching device to be turned off, forming a fourth control signal in a connection line between the second switching device and the fourth switching device, and controlling the The first switching device is turned off, and a fifth control signal is formed in a connection line between the first switching device and the third switching device, and the fifth control signal controls the second switching device to be turned on;
  • the first external control signal again controls the third switching device to be turned on, and after the second switching device and the third switching device are turned on again, the current is in the second a switching device, the load circuit having an inductive characteristic, and the third switch form a working circuit;
  • the first foreign control signal and the second external control signal are a set of driving signals including the first dead zone and the second dead zone and having complementary polarities.
  • the load circuit having an inductive characteristic includes a load, and a circuit connected to the load and having an inductive characteristic, the circuit having an inductive characteristic for transmitting energy to the load, and making the whole
  • the bridge circuit operates in an inductive section of the circuit having inductive characteristics.
  • the circuit having an inductive characteristic is an LC circuit or an inductor
  • the load is a load having no inductive characteristics, such as a resistor, a capacitive load, a negative resistive load, a rectifier bridge, or a rectifier.
  • the load circuit having an inductive characteristic includes a load having an inductive characteristic, that is, when the load has an inductive characteristic (leakage inductance), then the load having the inductive characteristic can replace the inductive characteristic.
  • the inductance in the circuit that is, the inductance in the LC circuit.
  • the load circuit having an inductive characteristic includes a load having an inductive characteristic, that is, the inductance characteristic in the load circuit having the inductive characteristic is generated by the load having the inductive characteristic.
  • the load having the inductance characteristic may be connected or not connected to the inductor (may also be a circuit including an inductor).
  • the load having the inductive characteristic is a transformer, an induction heating coil, a wireless charging transmitting coil, a speaker, other electromagnetic transmitting coils, a load resistor or a rectifier, etc., regardless of the structure of the load having the inductive characteristic. As long as it has inductive properties, it is the scope of protection of this patent.
  • the load circuit having an inductive characteristic further includes a capacitor, and the capacitor A loop formed in series with the load having the inductive characteristic.
  • the first foreign control signal and the second external control signal respectively control the third switching device and the fourth switching device to be turned on by a high level signal
  • the first alien The control signal and the second external control signal respectively control the third switching device and the fourth switching device to be turned off by a low level signal
  • the third switching device and the fourth switching device may be controlled to be turned on by a low level signal, and the third switching device and the fourth switching device are controlled to be disconnected by a high level signal.
  • the first control signal, the third control signal, and the fifth control signal may be low level signals, and then the second control signal and the fourth control signal may be high level a signal, then the first switching device and the second switching device are turned on when receiving a low level signal, and the first switching device and the second switching device are turned off when receiving a high level signal.
  • the first control signal, the third control signal, and the fifth control signal may also be a high level signal, and the second control signal and the fourth control signal may be low power
  • the flat signal is then turned on when the first switching device and the second switching device receive a high level signal, and the first switching device and the second switching device are turned off when receiving the low level signal.
  • one end of the power source is a positive pole or a negative pole
  • the other end of the power source is a negative pole or a positive pole.
  • the third switching device and the fourth switching device are PMOS transistors or NMOS transistors
  • the second switching device and the first switching device are NMOS transistors or PMOS transistors.
  • the first switching device, the second switching device, the third switching device, and the fourth switching device may be a fast thyristor, a turn-off thyristor, a power transistor, a field effect transistor, or/and an insulated gate transistor.
  • FIG. 3 is a schematic block diagram of an embodiment of an adaptive new soft-switching full-bridge driving circuit, including a first switching device 1, a second switching device 2, a third switching device 3, and a full bridge circuit formed by the fourth switching device 4, the first switching device 1 and the third switching device 3 are connected in series, the second switching device 2 is connected in series with the fourth switching device 4, and the first switching device 1 And the second switching device 2 are respectively connected to one end of the power source, and the third switching device 3 and the fourth switching device 4 are respectively connected to the other end of the power source.
  • a load circuit 5 having an inductive characteristic is further included.
  • the first external control signal DR3 is in communication with the third control terminal of the third switching device 3, and the second external control signal DR4 and the fourth switching device 4 are a fourth control terminal is connected; a first node M is disposed on a connection line between the first switching device 1 and the third switching device 3, and the second switching device 2 and the fourth switch are provided;
  • a second node N is disposed on the connection line between the devices 4, the first control end of the first switching device 1 is connected to the second node N, and the second control end of the second switching device 2 is The first node M is connected, and the first node M is connected to the second node N through the load circuit 5 having an inductive characteristic.
  • the first foreign control signal DR3 and the second foreign control signal DR4 are a set of driving signals including the first dead zone and the second dead zone and complement each other.
  • the load circuit 5 having an inductive characteristic includes a load 52, and a circuit connected to the load 52 and having an inductive characteristic, the circuit having an inductive characteristic for transmitting energy to the load 52, and
  • the full bridge circuit is operated in an inductive section of the circuit having inductive characteristics.
  • the circuit with inductive characteristics is an LC circuit 51, which can also be replaced by an inductor, which is an applied inductor or a distributed inductance of the circuit.
  • the load 52 is a load 52 that does not have inductive characteristics, such as a resistor, a capacitive load, a negative resistive load, a rectifier bridge, or a rectifier.
  • the load circuit 5 having an inductive characteristic includes a load having an inductance characteristic, that is, when the load 52 has an inductance characteristic (leakage inductance), then the load having the inductance characteristic can replace the The inductance in the circuit of the inductive characteristic, that is to say, can replace the inductance in the LC circuit 51, that is, the load circuit 5 having the inductive characteristic can not directly use the inductance, and its principle block diagram is shown in FIG. 6.
  • the load circuit 5 having an inductive characteristic includes a load 53 having an inductive characteristic, that is, an inductive characteristic in the load circuit 5 having an inductive characteristic is generated by the load 53 having an inductive characteristic.
  • the load 53 having the inductive characteristic may be connected or not connected to the load 53 (which may also be a circuit including an inductance) in the load circuit 5 having the inductance characteristic according to actual needs.
  • the load 53 having an inductive characteristic is a transformer, an induction heating coil, a wireless charging transmitting coil, a speaker, other electromagnetic transmitting coils, a load resistor or a rectifier, etc., regardless of the load 53 having the inductive characteristic.
  • the structure as long as it has inductance characteristics is the scope of protection of this patent.
  • the load 53 circuit having an inductive characteristic further includes a capacitor C9.
  • a circuit in which the capacitor C9 is connected in series with the load 53 having an inductive characteristic is described.
  • the first switching device 1, the second switching device 2, the third switching device 3, and the fourth switching device 4 may be a fast thyristor, a turn-off thyristor, a power transistor, and a field. Effect transistor or / and insulated gate transistor.
  • the first switching device 1 in order to make the first switching device 1, the second switching device 2, the third switching device 3, and the fourth switching device 4 in a zero voltage zero current working state, a reasonable design can be adopted.
  • the values of the inductance and capacitance of the LC circuit 51, or the appropriate operating frequencies of the first external control signal DR3 and the second external control signal DR4 are selected.
  • the first foreign control signal DR3 and the second external control signal DR4 are a set of complementary switching signals including dead zones, and the embodiment is suitable for use in a case where the power supply voltage is low.
  • the first external control signal DR3 controls the third switching device 3 to be turned on by the third control terminal, and forms a first control signal at the first node M, where the first control signal passes.
  • the second control terminal controls the second switching device 2 to be turned on, and the second switching device 2, the LC circuit 51, the load 52, and the third switch form a working circuit;
  • the first external control signal DR3 controls the third switching device 3 to be disconnected by the third control terminal, and forms a second control signal at the first node M, and the second control signal passes The second control terminal controls the second switching device 2 to be turned off;
  • a third control signal is formed at the second node N, and the third control signal controls the first switch to be turned on by the first control terminal;
  • the second foreign control signal DR4 controls the fourth switching device 4 to be turned on by the fourth control terminal; the first switching device 1 and the fourth switching device 4 lead After passing, a current forms a working circuit between the first switching device 1, the LC circuit 51, the load 52, and the fourth switch;
  • the second external control signal DR4 controls the fourth switching device 4 to be turned off by the fourth control terminal, forms a fourth control signal at the second node N, and controls the first switching device. 1 disconnecting, and forming a fifth control signal at the first node M, the fifth control signal controlling the second switching device 2 to be turned on;
  • the first external control signal DR3 controls the third switching device 3 to be turned on again, and after the second switching device 2 and the third switching device 3 are turned on again, the current is
  • the second switching device 2 the LC circuit 51, the load 52, and the third switch form a working circuit
  • the first foreign control signal DR3 and the second external control signal DR4 respectively control the third switching device 3 and the fourth switching device 4 to be turned on by a high level signal
  • the first foreign control signal DR3 and the second external control signal DR4 respectively control the third switching device 3 and the fourth switching device 4 to be turned off by a low level signal.
  • the third switching device 3 and the fourth switching device 4 are further controlled to be turned on by a low level signal, and the third switching device 3 and the fourth are controlled by a high level signal.
  • the switching device 4 is turned off.
  • the first control signal, the third control signal, and the fifth control signal may be low level signals, and the second control signal and the fourth control signal may be high power Flat signal, then the first switching device 1 and the second switching device 2 are turned on when receiving a low level signal, and the first switching device 1 and the second switching device 2 receive a high level The signal is disconnected.
  • the first control signal, the third control signal, and the fifth control signal may also be high level signals, and the second control signal and the fourth control signal may be low. a level signal, then the first switching device 1 and the second switching device 2 are turned on when receiving a high level signal, and the first switching device 1 and the second switching device 2 receive low power The signal is disconnected when it is flat.
  • one end of the power source is a positive pole or a negative pole
  • the other end of the power source is a negative pole or a positive pole.
  • the third switching device 3 and the fourth switching device 4 are PMOS transistors or NMOS transistors
  • the second switching device 2 and the first switching device 1 are NMOS transistors or PMOS transistors.
  • FIG. 4 and FIG. 5 are circuit diagrams and operational waveform diagrams of the embodiment shown in FIG. 3.
  • the first switching device 1, the second switching device 2, and the second The three-switch device 3 and the fourth switching device 4 are a PMOS field effect transistor Q1, a PMOS field effect transistor Q2, an NMOS field effect transistor Q3, and an NMOS field effect transistor Q4, hereinafter referred to as Q1, Q2, Q3, and Q4, and the load is a transformer.
  • T is hereinafter referred to as T.
  • the LC circuit 51 includes a capacitor C1 and an inductance L in series with the capacitor C1, hereinafter referred to as C1 and L.
  • the first foreign control signal DR3 and the second foreign control signal DR4 are hereinafter referred to as DR3 and DR4.
  • the first node M is abbreviated as M point
  • the second node N is hereinafter referred to as N point
  • the power source Vin+ is referred to as Vin+.
  • VGS maximum withstand voltage of the gates
  • zero voltage disconnection or zero voltage conduction of Q1, Q2, Q3, and Q4 means that the voltage difference between the drain and source of Q1, Q2, Q3, and Q4 is substantially zero or Conduction process.
  • the working principle of this embodiment is: start state, DR3, DR4 are all low level, Q1, Q2 delay will also be cut off for a certain time, when DR3 changes from low to high, Q3 turns on, M point potential drops to ground (the first A control signal), Q2 is also turned on (normal operation is zero voltage conduction), current I1 through Q2 ⁇ T ⁇ L ⁇ C1 ⁇ Q3 ⁇ ground.
  • DR3 becomes low level. Due to the distributed capacitance of Q1, Q3 and Q2, Q3 is zero voltage disconnected, current I1 transitions to current I2, and the distributed capacitance of M point (the distribution of Q1, Q3 and Q2) Capacitor) charging, pushing the M point potential from ground to Vin+ (second control signal), current I1 transitions to current I2, at this time Q2 zero voltage is disconnected (due to the distributed capacitance of Q2, Q4, Q1), current I2 Continue to flow to lower the voltage at point N to ground potential (third control signal).
  • Q1 zero voltage is on Q4 enters zero voltage state (the voltage difference between drain and source is basically zero), the current flow on L transitions from current I2 to current I3, then DR4 becomes high level, Q4 The zero voltage is turned on, and the current I3 continues to flow (where the current I3 is actually the current composition of the two time periods, that is, t6 ⁇ t7 and t7 ⁇ t8), the current I3 charges the capacitor C1, and at the same time, the current is discharged through the T. Fast down to 0. Next, under the voltage of Vin and capacitor C1 The current on L is transitioned to the direction of current I4 (through Q1 ⁇ C1 ⁇ L ⁇ T ⁇ Q4) (current commutation is achieved) and begins to ramp up and supplies current to T.
  • the Q4 zero voltage is disconnected, the current I4 charges the N point distributed capacitance (the distributed capacitance of Q2, Q1 and Q4), the N point voltage rises to Vin+ (the fourth control signal), and the current I4 flows to the current I5. .
  • Q1 zero voltage is disconnected, current I5 is reversely charged to the M point distributed capacitance, and M point voltage is dropped to ground (fifth control signal).
  • Q2 zero voltage is turned on.
  • FIG. 7 discloses a third embodiment of an adaptive new soft-switching full-bridge driving circuit.
  • the structure of the embodiment is basically the same as that of the embodiment shown in FIG. The structure is described repeatedly. The difference is that, in this embodiment, the diode D1, the diode D2, the diode D3 and the diode D4 are further included, and the diode D1, the diode D2, the diode D3 and the diode D4 respectively correspond to the first switching device 1 and the second switching device 2.
  • the third switching device 3 and the fourth switching device 4 are connected in parallel and provide a reverse current path thereto.
  • the fourth switching device 4 When the dead zone between the first foreign control signal DR3 and the second foreign control signal DR4 is relatively small, and the first switching device 1, the second switching device 2, the third switching device 3, and the When the fourth switching device 4 has a reverse parasitic diode to provide a reverse path, the diode D1, the diode D2, the diode D3, and the diode D4 can be omitted.
  • FIG. 8 is a block diagram showing a fourth embodiment of an adaptive novel soft-switch full-bridge driving circuit, the structure of which is basically the same as that of the embodiment shown in FIG. The difference is that the first clamp circuit 7 and the second clamp circuit 8 are also included.
  • the power supply voltage, the voltage of the first node M, and the voltage variation range of the second node N in the full bridge circuit exceed the first control end of the first switching device 1 and the second control device 2
  • the clamped voltage value satisfies the safe driving of the first control end and the second control end by using the first clamp circuit 7 and the second clamp circuit 8 to clamp. a value such that the first switching device 1 and the second switching device 2 achieve self-excited cross drive.
  • the full bridge drive circuit of this structure is suitable for a full bridge drive circuit with a relatively high voltage.
  • the two ends of the first clamping circuit 7 are respectively connected to one end of the power source and the second node N, and the first clamp output end of the first clamping circuit 7 is connected to the first control end. .
  • the two ends of the second clamping circuit 8 are respectively connected to one end of the power source and the first node M, and the second clamp output end of the second clamping circuit 8 and the second control end connection.
  • the first switching device 1, the second switching device 2, the third switching device 3, and the fourth switching device 4 may be respectively connected in parallel with a diode (not shown). .
  • FIG. 9 is a circuit diagram of the embodiment shown in FIG. 8.
  • the first switching device 1, the second switching device 2, the third switching device 3, and the fourth switching device 4 are employed.
  • the PMOS field effect transistor Q1, the PMOS field effect transistor Q2, the NMOS field effect transistor Q3, and the NMOS field effect transistor Q4 are hereinafter referred to as Q1, Q2, Q3, and Q4.
  • the first clamping circuit 7 includes a resistor R1, a Zener diode Z1, and a capacitor C2.
  • the resistor R1 and the Zener diode Z1 are connected in parallel, and the first common connection terminal and the power supply Vin+ are connected in parallel.
  • the second common connection is connected to the Q1 gate and one end of the capacitor C2, and the other end of the capacitor C2 is connected to the second node N.
  • the second clamping circuit 8 includes a resistor R2, a Zener diode Z2, and a capacitor C3.
  • the resistor R2 and the Zener diode Z2 are connected in parallel, and the first common connection terminal and the power supply Vin+ are connected in parallel.
  • the second common connection terminal is respectively connected to the Q2 gate and one end of the capacitor C3, and the other end of the capacitor C3 is connected to the first node M.
  • a corresponding improvement can be made on the basis of the first clamp circuit 7, that is, a resistor R11 is connected in series between the capacitor C2 and the gate of Q1 (please refer to FIG. 10). It is also possible to make a corresponding improvement on the basis of the second clamp circuit 8, that is, a resistor R22 is connected in series between the capacitor C3 and the gate of Q2 (see Fig. 10). Since there are many clamp circuits having a clamp voltage function, they are not exemplified here, as long as the circuit having the clamp voltage function is the protection range of the present embodiment.
  • FIG. 11 is a block diagram showing a fifth embodiment of an adaptive novel soft-switching full-bridge driving circuit, the structure of which is the same as the basic structure of the embodiment shown in FIG. The difference is that it further includes a first inverter circuit 11, a second inverter circuit 12, a third clamp circuit 9 having a positive and negative clamp function, and a fourth clamp circuit 10 having a positive and negative clamp function.
  • the third clamp circuit 9 and the first inverter circuit 11 function to ensure that the signal finally transmitted to the first control terminal after being processed satisfies the requirements of the operating voltage and phase of the first control terminal.
  • the fourth clamp circuit 10 and the second inverter circuit 12 function to ensure that the signal finally transmitted to the second control terminal after processing satisfies the requirements of the operating voltage and phase of the second control terminal, thereby
  • the first switching device 1 and the second switching device 2 implement self-excited cross drive.
  • the full bridge drive circuit of this structure is suitable for a high voltage full bridge circuit.
  • the driving signals of the first switching device 1 and the second switching device 2 are obtained by the transformation of the first node M and the second node N, regardless of Whether it is obtained directly or indirectly, it belongs to the protection scope of the patent of the present invention.
  • the third clamp circuit 9 is respectively connected to the second node N and the first node M, and the third clamp output end of the third clamp circuit 9 passes the first
  • the inverter circuit 11 is connected to the first control terminal.
  • the first inverter circuit 11 includes a first inverter and a first auxiliary power source that supplies power to the first inverter.
  • the third clamp circuit 9 clamps the input voltage of the first inverter such that the clamped voltage satisfies the input voltage requirement of the first inverter.
  • the fourth clamping circuit 10 is connected to the second node N and the first node M and one end of the power source through the starting resistor R3, and the fourth of the fourth clamping circuit 10 The clamp output is coupled to the second control terminal via the second inverter circuit 12.
  • the second inverter circuit 12 includes a second inverter and a second auxiliary power source that supplies power to the second inverter.
  • the fourth clamp circuit 10 clamps the input voltage of the second inverter such that the clamped voltage satisfies the input voltage requirement of the second inverter.
  • FIG. 12 is a circuit diagram of the embodiment shown in FIG. 11.
  • the first switching device 1, the second switching device 2, the third switching device 3, and the fourth switching device 4 are employed. All are NMOS field effect transistors or insulated gate transistors.
  • the first inverter circuit 11 includes a first inverter 112 and a first auxiliary power source 111 for supplying power to the first inverter 112.
  • the first auxiliary power source 111 includes a capacitor C6 and a stable voltage.
  • the diode Z3, the capacitor C6 and the Zener diode Z3 are connected in parallel, the first common end connected in parallel is connected to one power supply end of the first inverter 112, and the second common end is connected to the second node M, the first The other power supply terminal of an inverter 112 is connected to the second node M, and the inverted signal output terminal of the first inverter 112 is connected to the first control terminal of the first switching device 1.
  • the first auxiliary power source 111 may be another power source, which is not illustrated here, as long as the circuit for supplying power to the first inverter circuit 11 belongs to the protection range of the first auxiliary power source 111.
  • the third clamping circuit 9 includes a capacitor C4, a diode D5, and a diode D6.
  • One end of the capacitor C4 is connected to the second node N, and the other end of the capacitor C4 is respectively connected to the anode of the diode D5 and the cathode of the diode D6.
  • the cathode of the diode D5 is connected to a power supply terminal of the first inverter 112
  • the anode of the diode D6 is connected to the first node M.
  • the second inverter circuit 12 includes a second inverter 122 and a second auxiliary power source 121 for supplying power to the second inverter 122.
  • the second auxiliary power source 121 includes a capacitor C7.
  • the Zener diode Z4, the capacitor C7 and the Zener diode Z4 are connected in parallel, the first common end connected in parallel is connected to one power supply end of the second inverter 122, and the second common end is connected to the second node N.
  • the other power supply end of the second inverter 122 is connected to the second node N, and the inverted signal output end of the second inverter 122 is connected to the second control end of the second switching device 2.
  • the second auxiliary power source 121 may be another power source, which is not illustrated here, as long as the circuit for supplying power to the second inverter circuit 12 belongs to the protection range of the second auxiliary power source 121.
  • the fourth clamp circuit 10 includes a capacitor C5, a diode D7, and a diode D8.
  • One end of the capacitor C5 is connected to the first node M, and the other end of the capacitor C5 is respectively connected to the anode of the diode D7 and the diode D8.
  • the negative pole is connected to the signal input end of the second inverter 122, and the cathode of the diode D7 is respectively connected to one power supply end of the second inverter 122 and one end of the starting resistor R3, and the other end of the resistor R3 is activated.
  • the anode of the diode D8 is connected to the second node N.
  • the first switching device 1, the second switching device 2, the third switching device 3, and the fourth switching device 4 may be respectively connected in parallel with a diode (not shown). .
  • the first foreign control signal terminal DR3 and the second foreign control signal terminal DR4 are hereinafter referred to as DR3 and DR4, and the first node M is abbreviated as M point, and the second node N is hereinafter referred to as N point.
  • the working principle of this embodiment is: the startup state, DR3 and DR4 are both low level, the third switching device 3 and the fourth switching device 4 are in an off state; the result of charging by the starting resistor R3 is delayed.
  • both the N point and the M point have a higher potential, and the first switching device 1 is turned off.
  • DR3 goes high, the third switching device 3 is turned on, the M point rapidly drops to the ground potential, and the current I33 charges C5 via D8, causing the input of the second inverter 122 to become low.
  • the second inverter 122 outputs a high level, and the second switching device 2 is turned on.
  • the circuit currents are: 1) Current I11 is supplied to the load through load ⁇ LC circuit ⁇ M point; 2) Current I22 is charged to C6 via C4 ⁇ D5 ⁇ C6 ⁇ M point, and the stored energy on C6 is the first inverter 112 power supply; 3) current I33 via D8 ⁇ C5 ⁇ M point, causing the input of the second inverter 122 to be low, and the output of the second inverter 122 is high, so that the second switching device 2 is kept on.
  • the third switching device 3 (zero voltage) is turned off, the continuous flow of the current I11 causes the M point to rise to Vin+, and the discharge current I55 of the C5 is from C5 to D7 ⁇ C7. ⁇ N point, while charging C7, the power stored on C7 supplies power to the second inverter 122.
  • the input end of the second inverter 122 is at a high level
  • the output terminal is at a low level
  • the second switching device 2 zero voltage
  • the current I66 passes through the D6 ⁇ C4 ⁇ N point, so that the first inverter 112 is input to a low level, the output is a high level, and the first switching device 1 (zero voltage) is turned on, at this time, M
  • the point is Vin+
  • the potential at the N point is the ground potential
  • the current I55 is charged to C7 via C5 ⁇ D7 ⁇ C7 ⁇ N points.
  • DR4 becomes high level
  • the fourth switching device 4 zero voltage
  • the current I11 transitions to a current I44, and the current I44 is supplied with current from the Vin+ via the first switching device 1 ⁇ LC circuit 5 ⁇ load ⁇ the fourth switching device 4 to ground.
  • DR4 becomes low level
  • the fourth switching device 4 zero voltage
  • the continuous flow of current I44 pushes the N point potential to Vin+
  • the discharge current I22 of C4 passes through N point ⁇ C4 ⁇ D5 ⁇ C6 ⁇ M point
  • the first inverter input is high level
  • the output is low level
  • the first switching device 1 zero voltage

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Abstract

L'invention concerne un procédé d'attaque pour un circuit à pont complet à commutateur logiciel autoadaptatif, et un circuit d'attaque à pont complet. Le circuit d'attaque à pont complet comprend un premier dispositif commutateur (1), un deuxième dispositif commutateur (2), un troisième dispositif commutateur (3) et un quatrième dispositif commutateur (4). Un premier signal de commande externe (DR3) est connecté à une troisième extrémité de commande du troisième dispositif commutateur, et un deuxième signal de commande externe (DR4) est connecté à une quatrième extrémité de commande du quatrième dispositif commutateur. Un premier nœud (M) est agencé sur une ligne de connexion entre le premier dispositif commutateur et le troisième dispositif commutateur, et un deuxième nœud (N) est agencé sur une ligne de connexion entre le deuxième dispositif commutateur et le quatrième dispositif commutateur. Une première extrémité de commande du premier dispositif commutateur est connectée au deuxième nœud, et une deuxième extrémité de commande du deuxième dispositif commutateur est connectée au premier nœud. Le premier nœud est connecté au deuxième nœud par le biais d'une boucle de charge (5) présentant une caractéristique d'inductance. Le circuit d'attaque est simple en termes de circuit, est pratique pour la mise en œuvre d'une fonction de commutateur logiciel et est flexible dans sa disposition de circuit.
PCT/CN2016/079522 2015-04-21 2016-04-16 Procédé d'attaque pour circuit à pont complet à commutateur logiciel autoadaptatif, et circuit d'attaque à pont complet Ceased WO2016169446A1 (fr)

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US11800605B2 (en) 2017-12-21 2023-10-24 Nicoventures Trading Limited Circuitry for a plurality of induction elements for an aerosol generating device

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CN108111004B (zh) * 2017-12-29 2019-10-29 电子科技大学 一种实现Si IGBT软开关特性的混合型器件
CN115021528A (zh) * 2022-04-21 2022-09-06 常州是为电子有限公司 一种自举驱动的控制装置及控制方法

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WO2019122094A1 (fr) * 2017-12-21 2019-06-27 British American Tobacco (Investments) Limited Ensemble de circuits pour un élément d'induction pour un dispositif de génération d'aérosol
RU2741921C1 (ru) * 2017-12-21 2021-01-29 Никовенчерс Трейдинг Лимитед Электронная схема для индукционного элемента в генерирующем аэрозоль устройстве
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US11672054B2 (en) * 2017-12-21 2023-06-06 Nicoventures Trading Limited Circuitry for an induction element for an aerosol generating device
US11800605B2 (en) 2017-12-21 2023-10-24 Nicoventures Trading Limited Circuitry for a plurality of induction elements for an aerosol generating device
US20240130011A1 (en) * 2017-12-21 2024-04-18 Nicoventures Trading Limited Circuitry for a plurality of induction elements for an aerosol generating device
US12284743B2 (en) * 2017-12-21 2025-04-22 Nicoventures Trading Limited Circuitry for a plurality of induction elements for an aerosol generating device

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