CN115102367A - A kind of intelligent power supply controller chip and control method - Google Patents

Abstract

The invention discloses a chip for an intelligent power supply controller, which comprises a VCC, wherein the VCC is the power supply voltage of a circuit, the VCC is connected with a voltage stabilizing unit through a circuit, the voltage stabilizing unit is connected with a rated voltage balancing unit through a circuit, the voltage stabilizing unit is used for keeping the voltage of the VCC stable, the rated voltage balancing unit is used for converting the power supply voltage of the VCC into the voltage number which can be used for power supply, the rated voltage balancing unit is connected with a VREF through a circuit, the VREF is a reference voltage which can be used for power supply, the rated voltage balancing unit comprises a rated voltage path adjusting unit, the rated voltage path adjusting unit is respectively connected with a circuit A, a circuit B and a circuit C, the chip for the intelligent power supply controller and the control method thereof have the advantages of realizing multiple purposes of one power supply, the application range is enlarged.

Description

A kind of intelligent power supply controller chip and control method

technical field

The present invention relates to the technical field of power supply control chips, in particular to a chip for an intelligent power supply controller and a control method.

Background technique

Chip is a general term for semiconductor component products. It is the carrier of integrated circuits, which is divided into wafers. The market research and analysis report of the chip industry shows that a chip refers to a silicon wafer containing an integrated circuit, which is small in size and is often a part of a computer or other electronic equipment.

The power management control chip is a chip that undertakes the responsibilities of power conversion, distribution, detection and other power management in the electronic equipment system. It is mainly responsible for identifying the CPU power supply amplitude, generating the corresponding short-moment wave, and promoting the power output of the subsequent circuit.

In the prior art, most power supplies can only be used by electrical appliances of the same type of voltage, which has certain limitations. In order to solve this problem, we start with the power supply control chip to achieve the purpose of multi-purpose power supply.

SUMMARY OF THE INVENTION

The invention discloses a controller chip for an intelligent power supply and a control method, aiming at solving the technical problem of the limited use range of the existing power supply.

In order to achieve the above object, the present invention adopts the following technical solutions:

A controller chip for intelligent power supply, including VCC, the VCC is the power supply voltage of the circuit, the VCC is connected with a voltage stabilizing unit through a line, and the voltage stabilizing unit is connected with a rated voltage balancing unit through a line, and the stabilizing unit is connected through a line. The voltage unit is used to keep the voltage of VCC stable, the rated voltage balance unit is used to convert the power supply voltage of VCC into a voltage that can be used for power supply, and the rated voltage balance unit is connected with VREF through a line, and the VREF is a reference voltage that can be used for power supply, the rated voltage balance unit includes a rated voltage path adjustment unit, the rated voltage path adjustment unit is connected with line A, line B and line C, respectively, The rated voltage path adjustment unit is used to select line A, line B and line C in the energized line in the power supply environment, the line A is connected with 5-V Reference, and the line B is connected with 9 -V Reference, 12-VReference is connected to the line C, and the 5-V Reference, 9-V Reference and 12-V Reference are respectively a 5V regulator, a 9V regulator and a 12V regulator.

By being provided with a rated voltage balance unit, in the prior art, most of the power supplies can only be used by electrical appliances of the same type of voltage, which has certain limitations. The power supply voltage balance is the output voltage of 5V, 9V and 12V, respectively corresponding to the use of small electrical appliances such as mobile phones, small electrical appliances, and electric bicycles. The scope of use is expanded, the purpose of one power supply is multi-purpose, and it can play an emergency, easy to carry and other functions in the process of use, and is more easily accepted by the market.

In a preferred solution, the VCC is connected to a GROUND through a line, the GROUND is connected to a UVLO through a line, the UVLO is connected to a rated voltage balance unit and a voltage regulator unit at the same time, the GROUND is a circuit grounder, the UVLO is a voltage lockout when the voltage is too low. The voltage stabilization unit includes a path adjustment unit. The path adjustment unit is connected with line 1 and line 2 respectively. Select with line two, the line one is provided with two 34V voltage stabilizers, the two 34V voltage stabilizers of the line one are connected in series, and the line two is provided with a single 34V voltage stabilizer, so The path adjustment unit includes a supply voltage detection module and a path adjustment module, the supply voltage detection module is connected to the VCC, the supply voltage detection module is used to detect the supply voltage of the VCC, and the path adjustment module is connected to the supply voltage detection module , and the path adjustment module performs path adjustment on line 1 and line 2 according to the detection value of the power supply voltage detection module.

By setting a voltage stabilizing unit, the voltage stabilizing unit is provided with line 1 and line 2, and line 1 is connected in series with a 34V voltage stabilizer, thereby expanding the range of acceptable power supply voltage, enabling the power supply to receive a larger voltage power supply, and at the same time Compared with the prior art, which directly expands the power supply voltage range, the path adjustment unit is used to adjust the power-on line, so as to avoid increasing the voltage range to affect the small-value power supply voltage and reduce the power-on stability of the line.

In a preferred solution, the rated voltage path adjustment unit includes a voltage rapid detection module, a feedback analysis module, a rated voltage path adjustment module and a habitual voltage path recording module, the voltage rapid detection module is connected to VREF, and the feedback analysis module The module is connected with the voltage fast detection module and the line between the VREF, the rated voltage path adjustment module is connected with the voltage fast detection module, the customary voltage path recording module is connected with the rated voltage path adjustment module, and the voltage fast detection module is used. Used to detect VREF with current, the feedback analysis module is to analyze the information fed back by VREF to the voltage fast detection module, and the rated voltage path adjustment module is based on the feedback results of the feedback analysis module. B and line C are selected, and the customary voltage path recording module is used to record the latest line selection result;

A control method for an intelligent power supply controller chip, comprising the following specific steps:

S1: Install the chip and connect the power supply: Assemble the chip and the power supply, and connect the power supply;

S2: Detect the power supply voltage, select the voltage stabilizing circuit: the power supply voltage detection module quickly detects the power supply voltage, and selects the line 1 or the line 2 to use, where the limit voltage of the line 1 is greater than the limit voltage of the line 2;

S3: Determine the voltage and control the power-on: the voltage stabilization unit and the UVLO determine the current and voltage thresholds at the same time, and determine that the open power supply is qualified to be energized, and if it is not qualified, it will not be energized;

S4: Voltage balance, VREF detection: When using it for the first time, the voltage fast detection module first selects line A to power on, and quickly turns on the electrical appliance through VREF with 5V voltage;

S5: Switching the balance circuit: Receive the VREF feedback information through the feedback analysis module, observe whether the 5V voltage is applicable, and continue to use it, otherwise switch the circuit B or the circuit C to use one by one, under the action of the customary voltage path recording module, the secondary use of the power supply Priority is given to the last line power-up.

By providing the rated voltage path adjustment unit, the function of the current circuit can be switched for the rated voltage balance unit, wherein the voltage fast detection module in the rated voltage path adjustment unit firstly detects the VREF quickly with the lowest voltage path, and then through the feedback analysis module Receiving feedback information and selecting a suitable power-on path can reduce the damage when the voltage is not suitable for the electrical appliance. At the same time, under the action of the accustomed voltage path recording module, the number of detections can be reduced, and the service life of the power supply can be further guaranteed.

As can be seen from the above, a chip for intelligent power supply controller includes VCC, the VCC is the power supply voltage of the circuit, the VCC is connected with a voltage stabilization unit through a line, and the voltage stabilization unit is connected with a rated voltage balance unit through the line. , the voltage stabilization unit is used to keep the voltage of VCC stable, the rated voltage balance unit is used to convert the power supply voltage of VCC into a voltage number that can be used for power supply, and the rated voltage balance unit is connected with VREF through a line, The VREF is a reference voltage that can be used for power supply, the rated voltage balance unit includes a rated voltage path adjustment unit, the rated voltage path adjustment unit, and the rated voltage path adjustment unit is respectively connected with line A and line B and line C, the rated voltage path adjustment unit is used to select line A, line B and line C in the energized line in the power supply environment, the line A is connected with 5-V Reference, the line B There is a 9-V Reference connected to it, and a 12-V Reference is connected to the line C. The 5-V Reference, 9-V Reference and 12-V Reference are respectively a 5V regulator, a 9V regulator and a 12V regulator. press. The intelligent power supply controller chip and the control method provided by the present invention have the technical effects of realizing multiple uses of one power supply and expanding the scope of application.

Description of drawings

FIG. 1 is a schematic diagram of part of a circuit for an intelligent power supply controller chip proposed by the present invention.

FIG. 2 is a schematic diagram of the circuit structure of a voltage stabilizing unit for an intelligent power supply controller chip proposed by the present invention.

FIG. 3 is a schematic structural diagram of a path adjustment unit for an intelligent power supply controller chip proposed by the present invention.

FIG. 4 is a schematic diagram of a circuit structure of a rated voltage balance unit for an intelligent power supply controller chip proposed by the present invention.

FIG. 5 is a schematic structural diagram of a rated voltage path adjustment unit for an intelligent power supply controller chip proposed by the present invention.

FIG. 6 is a flowchart of a control method for an intelligent power supply controller chip proposed by the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

A chip for an intelligent power supply controller and a control method disclosed in the present invention are mainly applied to scenarios of power supply control applications.

Referring to Figure 1 and Figure 4, a controller chip for intelligent power supply includes VCC, VCC is the power supply voltage of the circuit, VCC is connected with a voltage regulator unit through a line, and the voltage regulator unit is connected with a rated voltage balance unit through a line, and the voltage regulator The unit is used to keep the voltage of VCC stable. The rated voltage balance unit is used to convert the power supply voltage of VCC to the number of voltages that can be used for power supply. The rated voltage balance unit is connected with VREF through the line, and VREF can be used for power supply. The reference voltage, the rated voltage balance unit includes a rated voltage path adjustment unit, a rated voltage path adjustment unit, the rated voltage path adjustment unit is respectively connected with line A, line B and line C, and the rated voltage path adjustment unit is used in the power supply environment. Select Line A, Line B and Line C in the power-on line. Line A is connected to 5-V Reference, Line B is connected to 9-VReference, and Line C is connected to 12-V Reference, 5-V Reference, 9 -V Reference and 12-VReference are 5V regulator, 9V regulator and 12V regulator respectively.

Referring to Figure 1, in a preferred embodiment, VCC is connected to GROUND through a line, GROUND is connected to UVLO through a line, UVLO is connected to the rated voltage balance unit and the voltage regulator unit at the same time, GROUND is a circuit grounder, and UVLO is a voltage too low locking.

Referring to FIG. 2 and FIG. 3, in a preferred embodiment, the voltage stabilization unit includes a path adjustment unit, and the path adjustment unit is respectively connected with a line 1 and a line 2, and the path adjustment unit is used for energized lines in a power supply environment. Line 1 and line 2 are selected. There are two 34V regulators in line 1, two 34V regulators in line 1 are connected in series, and line 2 is provided with a single 34V regulator, and the path adjustment unit includes power supply. The voltage detection module and the path adjustment module, the power supply voltage detection module is connected to VCC, the power supply voltage detection module is used to detect the power supply voltage of VCC, the path adjustment module is connected with the power supply voltage detection module, and the path adjustment module is based on the detection of the power supply voltage detection module. The value performs path adjustment for Line 1 and Line 2.

5, in a preferred embodiment, the rated voltage path adjustment unit includes a voltage fast detection module, a feedback analysis module, a rated voltage path adjustment module and a customary voltage path recording module, the voltage fast detection module is connected to VREF, and the feedback analysis module It is connected with the line between the voltage fast detection module and VREF, the rated voltage path adjustment module is connected with the voltage fast detection module, the customary voltage path recording module is connected with the rated voltage path adjustment module, and the voltage fast detection module is used to detect VREF with current. , the feedback analysis module is to analyze the information fed back by VREF to the voltage fast detection module, the rated voltage path adjustment module is to select Line A, Line B and Line C of the energized line based on the feedback results of the feedback analysis module, and is used to record the voltage path The module is used to record the latest line selection result.

Referring to FIG. 6, a controller chip for intelligent power supply includes the following specific steps:

S1: Install the chip and connect the power supply: Assemble the chip and the power supply, and connect the power supply;

S2: Detect the power supply voltage, select the voltage stabilizing circuit: the power supply voltage detection module quickly detects the power supply voltage, and selects the line 1 or the line 2 to use, where the limit voltage of the line 1 is greater than the limit voltage of the line 2;

S3: Determine the voltage and control the power-on: the voltage stabilization unit and the UVLO determine the current and voltage thresholds at the same time, and determine that the open power supply is qualified to be energized, and if it is not qualified, it will not be energized;

S4: Voltage balance, VREF detection: When using it for the first time, the voltage fast detection module first selects line A to power on, and quickly turns on the electrical appliance through VREF with 5V voltage;

S5: Switching the balance circuit: Receive the VREF feedback information through the feedback analysis module, observe whether the 5V voltage is applicable, and continue to use it, otherwise switch the circuit B or the circuit C to use one by one, under the action of the customary voltage path recording module, the secondary use of the power supply Priority is given to the last line power-up.

Working principle: When using, assemble the chip and power supply, and connect the power supply, the power supply voltage detection module quickly detects the supply voltage, and selects line 1 or line 2 to use, where the limit voltage of line 1 is greater than the limit voltage of line 2, and line 1 By connecting a 34V voltage regulator in series, the range of acceptable power supply voltage is expanded, so that the power supply can receive a larger voltage power supply. At the same time, compared with the prior art, which directly expands the power supply voltage range, the path adjustment unit is used to adjust the power supply. Line, avoid increasing the voltage range to affect the small value power supply voltage and reduce the stability of the line power-on, then the voltage regulator unit and UVLO simultaneously determine the current and voltage thresholds, and determine the qualified open power supply. When in use, the voltage fast detection module first selects line A to power on, quickly turns on the electrical appliance through VREF with 5V voltage, receives the VREF feedback information through the feedback analysis module, and observes whether the 5V voltage is applicable, if it is, continue to use it, otherwise convert line B or line one by one. Line C is used. Under the action of the customary voltage path recording module, the last line power-on is preferentially selected when the power supply is used for the second time, thus greatly expanding the scope of use and realizing the purpose of multiple uses of one power supply. Under the action, the number of detections can be reduced, and the service life of the power supply can be further guaranteed.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (8)

1. for an intelligent power supply controller chip, comprising VCC, it is characterized in that, described VCC is the power supply voltage of circuit, described VCC is connected with voltage-stabilizing unit by line, and described voltage-stabilizing unit is connected with rated voltage by line The balancing unit, the voltage stabilizing unit is used to keep the voltage of the VCC stable, the rated voltage balancing unit is used to convert the power supply voltage of the VCC into a voltage number that can be used for power supply, and the rated voltage balancing unit is connected with a line through a line. VREF, the VREF is a reference voltage that can be used for power supply, the rated voltage balance unit includes a rated voltage path adjustment unit, and the rated voltage path adjustment unit is connected with the lines A, Line B and Line C, the rated voltage path adjustment unit is used to select Line A, Line B and Line C in the energized line in the power supply environment, the Line A is connected with a 5-V Reference, the A 9-V Reference is connected to the line B, and a 12-V Reference is connected to the line C. The 5-V Reference, the 9-V Reference and the 12-V Reference are the 5V regulator, 9V regulator and 12V regulator. 2. A controller chip and control method for an intelligent power supply according to claim 1, wherein the VCC is connected with a GROUND through a line, and the GROUND is connected with a UVLO through a line, and the UVLO is simultaneously connected with the rated value. The voltage balancing unit is connected to the voltage stabilizing unit, the GROUND is a circuit grounder, and the UVLO is a voltage lockout. 3 . The controller chip for intelligent power supply according to claim 1 , wherein the voltage regulator unit comprises a path adjustment unit, and the path adjustment unit is respectively connected with a line 1 and a line 2, and the path The adjustment unit is used to select the first line and the second line in the energized line under the power supply environment. 4. A chip for an intelligent power supply controller according to claim 3, characterized in that, two 34V voltage regulators are provided in the circuit one, and the two 34V voltage stabilizers in the circuit one are: Connected in series, a single 34V voltage regulator is set in the second line. 5. A chip for an intelligent power supply controller according to claim 4, wherein the path adjustment unit comprises a power supply voltage detection module and a path adjustment module, the power supply voltage detection module is connected to VCC, and the The power supply voltage detection module is used to detect the power supply voltage of VCC, the path adjustment module is connected to the power supply voltage detection module, and the path adjustment module performs path adjustment on line 1 and line 2 according to the detection value of the power supply voltage detection module. 6 . The chip for intelligent power supply controller according to claim 1 , wherein the rated voltage path adjustment unit comprises a voltage fast detection module, a feedback analysis module, a rated voltage path adjustment module and a customary voltage path recorder. 7 . module, the voltage fast detection module is connected with VREF, the feedback analysis module is connected with the voltage fast detection module and the line between VREF, the rated voltage path adjustment module is connected with the voltage fast detection module, the customary voltage path recording module Connect to the rated voltage path conditioning module. 7. A chip for an intelligent power supply controller according to claim 6, wherein the voltage fast detection module is used to detect VREF with current, and the feedback analysis module is used to quickly detect the VREF to the voltage. The information fed back by the detection module is analyzed, the rated voltage path adjustment module is to select Line A, Line B and Line C of the energized line based on the feedback result of the feedback analysis module, and the habitual voltage path recording module is used to record the most recent One line selection result. 8. A control method for an intelligent power supply controller chip, comprising the following specific steps: S1: Install the chip and connect the power supply: Assemble the chip and the power supply, and connect the power supply; S2: Detect the power supply voltage, select the voltage stabilizing circuit: the power supply voltage detection module quickly detects the power supply voltage, and selects the line 1 or the line 2 to use, where the limit voltage of the line 1 is greater than the limit voltage of the line 2; S3: Determine the voltage and control the power-on: the voltage stabilization unit and the UVLO determine the current and voltage thresholds at the same time, and determine that the open power supply is qualified to be energized, and if it is not qualified, it will not be energized; S4: Voltage balance, VREF detection: When using it for the first time, the voltage fast detection module first selects line A to power on, and quickly turns on the electrical appliance through VREF with 5V voltage; S5: Switching the balance circuit: Receive the VREF feedback information through the feedback analysis module, observe whether the 5V voltage is applicable, and continue to use it, otherwise switch the circuit B or the circuit C to use one by one, under the action of the customary voltage path recording module, the secondary use of the power supply Priority is given to the last line power-up.

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