CN203911723U - Zero-voltage-switch and zero-current-switch switching power supply circuit - Google Patents
Zero-voltage-switch and zero-current-switch switching power supply circuit Download PDFInfo
- Publication number
- CN203911723U CN203911723U CN201420201112.9U CN201420201112U CN203911723U CN 203911723 U CN203911723 U CN 203911723U CN 201420201112 U CN201420201112 U CN 201420201112U CN 203911723 U CN203911723 U CN 203911723U
- Authority
- CN
- China
- Prior art keywords
- capacitor
- zero
- circuit
- diode
- switching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 70
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 48
- 230000008901 benefit Effects 0.000 abstract description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- 239000010703 silicon Substances 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- Y02B70/1491—
Landscapes
- Rectifiers (AREA)
Abstract
The utility model relates to a zero-voltage-switch and zero-current-switch switching power supply circuit which is connected between a power supply and a load. The zero-voltage-switch and zero-current-switch switching power supply circuit comprises the components of: a switching circuit, a transformer T1, a transformer T2 and an output circuit. The input end of the switching circuit can be connected with a DC power supply, and also can be connected with an AC power supply. The transformer T1 and the transformer T2 are respectively connected with the switching circuit and the output circuit. The output end of the output circuit is connected with a load. The switching circuit comprises a control switch S1, a control switch S2, a capacitor C1 and a capacitor C2. The control switch S1 and S2 are unidirectional silicon controlled rectifiers, bidirectional silicon controlled rectifiers, IGBTs, MOSFETs or GRT devices. Compared with the prior art, the zero-voltage-switch and zero-current-switch switching power supply circuit has advantages of: zero-current voltage switching, large power-to-volume ratio, small weight, etc.
Description
Technical field
The utility model relates to a kind of switching power circuit, especially relates to a kind of zero and opens the switching power circuit of (ZVS) zero pass (ZCS).
Background technology
In recent years, switch power technology develops rapidly, be widely used in industrial automatic control, military industry equipment, research equipment, LED illumination, industrial control equipment, communication apparatus, power equipment, instrument and meter, Medical Devices etc. as power supply, Industrial Frequency Transformer is applied in conventional power source, and Switching Power Supply is compared Industrial Frequency Transformer and had the features such as power conversion efficiency is high, voltage stabilized range is wide, power to volume ratio is high, lightweight, but also exist following several problems simultaneously:
1) existing Switching Power Supply is difficult to really realize the Zero switching loss of control switch simultaneously, and, in the moment of the switch of control switch, voltage, electric current in circuit are non-vanishing, so the power consuming also just can not reach zero.
2) in the time that Switching Power Supply works in electric car charger, charger for mobile phone, the size of control, output frequency and the power of switching frequency all can affect the useful life and charging deadline of electric power storage battery, can increase by increasing the interruption frequency of control switch the power output of circuit, but relatively just increase the use burden of control switch.
3) in conventional switching power circuit, there are two kinds with the direct coupling part of load circuit: 1, Half bridge rectifier circuit, 2, full bridge rectifier, as shown in Figure 3, Figure 4, the electric current only transformer induction being come in function is to have carried out rectification.
Therefore, be badly in need of a kind of zero and open zero pass, high, the lightweight switching power circuit of power to volume ratio.
Summary of the invention
The purpose of this utility model is exactly to provide in order to overcome the defect that above-mentioned prior art exists a kind of zero to open zero pass, increase power output, high, the lightweight switching power circuit of power to volume ratio.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of zero opens the switching power circuit of zero pass, be connected between power supply and load, comprise switching circuit, transformer T1, transformer T2 and output circuit, described switching circuit input is connected with power supply, described transformer T1 and transformer T2 connecting valve circuit and output circuit respectively, described output circuit output is connected with load.
Described transformer T1 comprises armature winding L
t11with secondary winding L
t12, described transformer T2 comprises armature winding L
t21with secondary winding L
t22, described armature winding L
t11with armature winding L
t21be connected with switching circuit respectively, described secondary winding L
t12with secondary winding L
t22be connected with output circuit respectively.
Described switching circuit comprises control switch S
1, control switch S
2, capacitor C
1and capacitor C
2, described control switch S
1with control switch S
2be connected in series in both ends of power, described capacitor C
1with armature winding L
t11rear and control switch S connect
1parallel connection, described capacitor C
2with armature winding L
t21rear and control switch S connect
2in parallel.
Described control switch S
1and S
2for one-way SCR, bidirectional triode thyristor, IGBT, MOSFET or GRT device.
Described output circuit comprises the first output unit and the second output unit, the first described output unit and secondary winding L
t12be connected, the second described output unit and secondary winding L
t22be connected, described the first output unit and the second output unit are connected in parallel on load two ends.
The first described output unit is identical with the structure of the second output unit.
The first described output unit comprises diode D
1, diode D
2, capacitor C
3and capacitor C
4, described capacitor C
3positive pole connect respectively one end and the diode D of load
1negative electrode, capacitor C
3negative pole connect respectively capacitor C
4positive pole and secondary winding L
t12one end, described capacitor C
4negative pole connect respectively the other end and the diode D of load
2anode, described diode D
1anode and secondary winding L
t12the other end be connected, described diode D
2negative electrode connect diode D
1anode.
The second described output unit comprises diode D
3, diode D
4, capacitor C
5and capacitor C
6, described capacitor C
5positive pole connect respectively one end and the diode D of load
3negative electrode, capacitor C
5negative pole connect respectively capacitor C
6positive pole and secondary winding L
t22one end, described capacitor C
6negative pole connect the other end and the diode D of load
4anode, described diode D
3anode and secondary winding L
t22the other end be connected, described diode D
4negative electrode connect diode D
3anode.
Described power supply is DC power supply or AC power.
Compared with prior art, the utlity model has following advantage.
1) moment of the switch of switching circuit of the present utility model, voltage, electric current in circuit are zero, have eliminated because of the unreasonable power consuming of switch control, have realized zero of circuit and have opened zero pass function.
2) switching circuit structure of the present utility model is compared with general, employing has the device of memory function: electric capacity and inductance, make under certain switching frequency, the frequency conversion function of circuit can increase to original 3 to 4 times, that is to say when the high-frequency that meets circuit requires, can reduce the requirement of the switching frequency parameter to control switch device.
3) the utility model power to volume ratio is high, lightweight, because adopt two electric capacity, inductance to form new topological structure, can make the value of electrical network EMC minimize, and the delivery efficiency of this Switching Power Supply is improved to greatest extent.；
4) the utility model adopts the transformer of two single group coils, and tap need not be set, and further reduces volume of transformer.
Brief description of the drawings
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is physical circuit figure of the present utility model;
Fig. 3 is Half bridge rectifier circuit;
Fig. 4 is full bridge rectifier.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
As shown in Figure 1, a kind of zero opens the switching power circuit 1 of zero pass, be connected between power supply 2 and load 3, comprise switching circuit 11, transformer T1, transformer T2 and output circuit 12, described switching circuit 11 inputs are connected with power supply 2, described transformer T1 and transformer T2 be connecting valve circuit 11 and output circuit 12 respectively, and described output circuit 12 outputs are connected with load 3.Power supply 2 can be DC power supply or AC power.
As shown in Figure 2, described transformer T1 comprises armature winding L
t11with secondary winding L
t12, described transformer T2 comprises armature winding L
t21with secondary winding L
t22, described armature winding L
t11with armature winding L
t21be connected with switching circuit respectively, described secondary winding L
t12with secondary winding L
t22be connected with output circuit respectively.
Described switching circuit 11 comprises control switch S
1, control switch S
2, capacitor C
1and capacitor C
2, described control switch S
1with control switch S
2be connected in series in both ends of power, described capacitor C
1with armature winding L
t11rear and control switch S connect
1parallel connection, described capacitor C
2with armature winding L
t21rear and control switch S connect
2in parallel.Described control switch S
1and S
2can be one-way SCR, bidirectional triode thyristor, IGBT, MOSFET or GRT device etc., the control of control switch is comprised to 2 kinds of forms of Frequency And Amplitude Modulation.
Described output circuit 12 comprises the first output unit and the second output unit, the first described output unit and secondary winding L
t12be connected, the second described output unit and secondary winding L
t22be connected, described the first output unit and the second output unit are connected in parallel on load two ends.The first output unit is identical with the structure of the second output unit.The first described output unit comprises diode D
1, diode D
2, capacitor C
3and capacitor C
4, described capacitor C
3positive pole connect respectively one end and the diode D of load
1negative electrode, capacitor C
3negative pole connect respectively capacitor C
4positive pole and secondary winding L
t12one end, described capacitor C
4negative pole connect respectively the other end and the diode D of load
2anode, described diode D
1anode and secondary winding L
t12the other end be connected, described diode D
2negative electrode connect diode D
1anode.The second described output unit comprises diode D
3, diode D
4, capacitor C
5and capacitor C
6, described capacitor C
5positive pole connect respectively one end and the diode D of load
3negative electrode, capacitor C
5negative pole connect respectively positive pole and the secondary winding L of capacitor C 6
t22one end, described capacitor C
6negative pole connect the other end and the diode D of load
4anode, described diode D
3anode and secondary winding L
t22the other end be connected, described diode D
4negative electrode connect diode D
3anode.
In the utility model, the course of work of switching circuit 11 is:
1) as control switch S
1, control switch S
2while all disconnection, pass to power supply, voltage is U, if power supply is AC power, and control switch S
1, S
2requirement bilateral device.
Now, because the existence of inductance, the electric current in circuit slowly increases, and power supply is to capacitor C
1and electric capacity
c2charge.Until capacitor charging completes, in circuit, electric current is 0, is stable state 1, is determined its stabilization time by electric capacity and the concrete LC second order of inductance time constant numerical value.
2) work as capacitor C
1and capacitor C
2charging completes, and in circuit, electric current is 0 o'clock, control switch S
1closed.
Now, because the existence of electric capacity, the voltage at electric capacity two ends can not suddenly change, and power supply is to capacitor C
2continue charging, capacitor C
2voltage increased U/2, capacitor C 1 is discharged, until capacitor C 2 has been charged, C1 has discharged, in circuit, electric current is 0, is stable state 2.
3) work as capacitor C
2charging completes, and in circuit, electric current is 0 o'clock, control switch S
1disconnect.
Now, capacitor C
2release energy, capacitor C
1stored energy, reaches stable state 3.
4) again by control switch S
2closed.
Now, power supply is all to capacitor C
1continue charging, capacitor C
1voltage increased U/2, until electric current is 0 in circuit, be stable state 4.
5) control switch S
2disconnect.
Now, capacitor C
1release energy, capacitor C
2stored energy, reaches stable state 5.
6) repetitive process 1 again)-5), capacitor and inductor state conversion mutually in stable state 1,2,3,4,5 in switching circuit.
If power supply is DC power supply, control switch S
1, S
2adopt unidirectional device, similar when the course of work of switching circuit and AC power.
The control switch of switching circuit can be in the time of zero current no-voltage break-make, transferring energy between electric capacity, the voltage high frequency at the primary coil two ends of transformer T1, T2 is changed, the frequency conversion function of circuit is 3 to 4 times of regular tap circuit, can reduce the folding frequency requirement to switching tube, increase switch life, under identical switch folding frequency, and the energy that the utility model transmits is larger.
Because output circuit comprises 2 output units that structure is identical, so analyze the course of work in an output unit:
1) as diode D
1when conducting, transformer T1 is to capacitor C
3when charging, to load, R provides energy, capacitor C
4release energy.
2) as diode D
2when conducting, transformer T1 is to capacitor C
4when charging, to load, R provides energy, capacitor C
3release energy.
Output circuit of the present utility model, compared with available circuit, has not only been realized rectification, and releases energy through the storage of residing output circuit, strong voltage and the heavy current with pulse by a small margin that output loading is stable.Therefore, the in the situation that of equal power output, volume of the present utility model is less, and weight is lighter; In the situation of same volume weight, the energy of output can have more one times.
Claims (9)
1. open the switching power circuit of zero pass for one kind zero, be connected between power supply and load, it is characterized in that, comprise switching circuit, transformer T1, transformer T2 and output circuit, described switching circuit input is connected with power supply, described transformer T1 and transformer T2 connecting valve circuit and output circuit respectively, described output circuit output is connected with load.
2. according to claim 1 a kind of zero open the switching power circuit of zero pass, it is characterized in that, described transformer T1 comprises armature winding L
t11with secondary winding L
t12, described transformer T
2comprise armature winding L
t21with secondary winding L
t22, described armature winding L
t11with armature winding L
t21be connected with switching circuit respectively, described secondary winding L
t12with secondary winding L
t22be connected with output circuit respectively.
3. according to claim 2 a kind of zero open the switching power circuit of zero pass, it is characterized in that, described switching circuit comprises control switch S
1, control switch S
2, capacitor C
1and capacitor C
2, described control switch
s1s2 is connected in series in both ends of power with control switch, described capacitor C
1with armature winding L
t11rear and control switch S connect
1parallel connection, described capacitor C
2with armature winding L
t21rear and control switch S connect
2in parallel.
4. according to claim 3 a kind of zero open the switching power circuit of zero pass, it is characterized in that, described control switch S
1and S
2for one-way SCR, bidirectional triode thyristor, IGBT, MOSFET or GRT device.
5. according to claim 2 a kind of zero open the switching power circuit of zero pass, it is characterized in that, described output circuit comprises the first output unit and the second output unit, the first described output unit and secondary winding L
t12be connected, the second described output unit and secondary winding L
t22be connected, described the first output unit and the second output unit are connected in parallel on load two ends.
6. according to claim 5 a kind of zero open the switching power circuit of zero pass, it is characterized in that, the first described output unit is identical with the structure of the second output unit.
7. according to claim 5 a kind of zero open the switching power circuit of zero pass, it is characterized in that, the first described output unit comprises diode D
1, diode D
2, capacitor C
3and capacitor C
4, described capacitor C
3positive pole connect respectively one end and the diode D of load
1negative electrode, capacitor C
3negative pole connect respectively capacitor C
4positive pole and secondary winding L
t12one end, described capacitor C
4negative pole connect respectively the other end and the diode D of load
2anode, described diode D
1anode and secondary winding L
t12the other end be connected, described diode D
2negative electrode connect diode D
1anode.
8. according to claim 5 a kind of zero open the switching power circuit of zero pass, it is characterized in that, the second described output unit comprises diode D
3, diode D
4, capacitor C
5and capacitor C
6, described capacitor C
5positive pole connect respectively one end and the diode D of load
3negative electrode, capacitor C
5negative pole connect respectively capacitor C
6positive pole and secondary winding L
t22one end, described capacitor C
6negative pole connect the other end and the diode D of load
4anode, described diode D
3anode and secondary winding L
t22the other end be connected, described diode D
4negative electrode connect diode D
3anode.
9. according to claim 1 a kind of zero open the switching power circuit of zero pass, it is characterized in that, described power supply is DC power supply or AC power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201112.9U CN203911723U (en) | 2014-04-23 | 2014-04-23 | Zero-voltage-switch and zero-current-switch switching power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201112.9U CN203911723U (en) | 2014-04-23 | 2014-04-23 | Zero-voltage-switch and zero-current-switch switching power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203911723U true CN203911723U (en) | 2014-10-29 |
Family
ID=51785969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420201112.9U Expired - Fee Related CN203911723U (en) | 2014-04-23 | 2014-04-23 | Zero-voltage-switch and zero-current-switch switching power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203911723U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106817029A (en) * | 2015-12-01 | 2017-06-09 | 雅达电子国际有限公司 | Scalable DC‑DC power converters for different output voltages |
-
2014
- 2014-04-23 CN CN201420201112.9U patent/CN203911723U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106817029A (en) * | 2015-12-01 | 2017-06-09 | 雅达电子国际有限公司 | Scalable DC‑DC power converters for different output voltages |
| CN106817029B (en) * | 2015-12-01 | 2020-10-09 | 雅达电子国际有限公司 | Changeable DC-DC power converter for providing different output voltages |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106059110B (en) | A kind of constant current-constant pressure wireless charging system and its charging method | |
| CN203645381U (en) | Vehicle charger system of electric vehicle | |
| US10847991B2 (en) | Multiple bidirectional converters for charging and discharging of energy storage units | |
| CN107317401B (en) | Anti-deviation constant-voltage output wireless power transmission system | |
| CN109638978B (en) | A high-efficiency constant-voltage and constant-current switching wireless charging topology | |
| US20230113753A1 (en) | Dc/dc converter and method for controlling output voltage thereof | |
| CN105871215A (en) | Rectification control circuit for bidirectional CLLLC resonant converter | |
| CN110429716B (en) | A variable parameter and variable frequency constant current and constant voltage inductive wireless power transmission system | |
| CN104506039A (en) | Bidirectional isolation direct-current and direct-current converter | |
| CN108736733A (en) | Two-way DC/DC converters and its control method is isolated in a kind of variable turns ratio | |
| CN105897001A (en) | CLLLC resonance-based AC-AC bidirectional converter | |
| CN106961220B (en) | A high-efficiency parallel LLC resonant converter with current sharing characteristics | |
| CN204244077U (en) | A Bidirectional Isolated DC-DC Converter | |
| CN102751793A (en) | Wireless power transfer system based on bilateral power flow control and control method thereof | |
| CN206117480U (en) | High -low pressure switching circuit of LLC transform output | |
| US12246609B2 (en) | Charging device and method for operating the charging device | |
| CN201307560Y (en) | Wide voltage input alternative-direct-current universal electromagnetic contactor intelligent control module | |
| CN102983738A (en) | Primary voltage buffer type full-bridge single-stage power-factor corrector of transformer | |
| CN112311106A (en) | Single-stage full-bridge constant-current constant-voltage wireless charging device and control method thereof | |
| CN105262182B (en) | Bidirectional balanced charge-discharge circuit of battery pack and charge-discharge control implementation method thereof | |
| CN205195336U (en) | A battery pack bidirectional equalization charging and discharging circuit | |
| CN107749672A (en) | Collection system for energy conversion | |
| CN106357116A (en) | Main circuit for charging and discharging device of micro-grid system and control method of main circuit | |
| CN106487234B (en) | Output power control method of flyback converter in current mixed working mode | |
| CN203911723U (en) | Zero-voltage-switch and zero-current-switch switching power supply circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20200423 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |