CN116131604A - Boost control circuit and method of power supply - Google Patents
Boost control circuit and method of power supply Download PDFInfo
- Publication number
- CN116131604A CN116131604A CN202211710329.8A CN202211710329A CN116131604A CN 116131604 A CN116131604 A CN 116131604A CN 202211710329 A CN202211710329 A CN 202211710329A CN 116131604 A CN116131604 A CN 116131604A
- Authority
- CN
- China
- Prior art keywords
- module
- boosting
- voltage
- boost
- power supply
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
-
- 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
-
- 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
Abstract
The invention discloses a boosting control circuit of a power supply, which relates to the field of voltage supply, and comprises: the power supply module is used for supplying direct current and outputting the direct current to the sawtooth wave generating module and the boosting module; the boosting module is used for boosting the input voltage and outputting the boosted input voltage; the sawtooth wave generation module is used for outputting sawtooth waves to be supplied to the feedback control module, and the boosting amplitude is regulated through the feedback control module; the feedback control module is used for sampling the output voltage of the boost module, obtaining the sampling voltage, feeding back to the boost module and constructing voltage-stabilizing output; the output indication module is used for indicating the voltage and current values output by the boosting module; compared with the prior art, the invention has the beneficial effects that: the invention outputs the control signal to the boost module through a line by the sawtooth wave generating module for adjusting the boost amplitude and the feedback control module for constructing the output stable voltage, and has simpler circuit structure and smaller occupied volume.
Description
Technical Field
The invention relates to the field of voltage supply, in particular to a boosting control circuit and a boosting control method of a power supply.
Background
The common power supply is an energy storage battery and a household 110V-220V alternating current power supply. The household 110V-220V alternating current power supply meets the power consumption requirement of common electric appliances, and the energy storage battery is not easy to change due to the self voltage supply, so that the energy storage battery can only meet the use requirement of specific electric appliances.
The energy storage battery is often subjected to boosting treatment, so that the use requirements of other electric appliances are met; the prior art is often that boost control and feedback are regulated into two independent circuits, so that the circuit is large in size and needs improvement.
Disclosure of Invention
The present invention is directed to a boost control circuit and method for a power supply, so as to solve the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a boost control circuit for a power supply, comprising:
the power supply module is used for supplying direct current and outputting the direct current to the sawtooth wave generating module and the boosting module;
the boosting module is used for boosting the input voltage and outputting the boosted input voltage;
the sawtooth wave generation module is used for outputting sawtooth waves to be supplied to the feedback control module, and the boosting amplitude is regulated through the feedback control module;
the feedback control module is used for sampling the output voltage of the boost module, obtaining the sampling voltage, feeding back to the boost module and constructing voltage-stabilizing output;
the output indication module is used for indicating the voltage and current values output by the boosting module;
the power supply module is connected with the sawtooth wave generating module and the boosting module, the boosting module is connected with the output indicating module, the sawtooth wave generating module is connected with the feedback control module, and the feedback control module is connected with the boosting module.
As still further aspects of the invention: the power supply module comprises an energy storage battery VCC, a switch S1, a resistor R1 and a diode D1, wherein the energy storage battery VCC is connected with one end of the switch S1, the other end of the switch S1 is connected with one end of the resistor R1 and the boosting module, the other end of the resistor R1 is connected with the negative electrode of the diode D1 and the sawtooth wave boosting module, and the positive electrode of the diode D1 is grounded.
As still further aspects of the invention: the boost module comprises an inductor L1, a diode D4, a triode V2 and a capacitor C4, wherein one end of the inductor L1 is connected with the power supply module, the other end of the inductor L1 is connected with a collector of the triode V2 and a positive electrode of the diode D4, an emitting electrode of the triode V2 is grounded, a base electrode of the triode V2 is connected with the feedback control module, a negative electrode of the diode D4 is connected with one end of the capacitor C4, the output indication module and the feedback control module, and the other end of the capacitor C4 is grounded.
As still further aspects of the invention: the sawtooth wave generation module comprises a capacitor C1, a timer U1, a capacitor C2, a diode D3, a resistor R2, a potentiometer RP1, a triode V1 and a capacitor C3, wherein the timer U1 is 555 timer, one end of the capacitor C1 is connected with a power supply module, a pin 4 of the timer U1, a pin 8 of the timer U1, the anode of the diode D2 and one end of the potentiometer RP1, the other end of the capacitor C1 is grounded, a pin 5 of the timer U1 is grounded through the capacitor C2, a pin 1 of the timer U1 is grounded, a pin 2 of the timer U1 is connected with a pin 6 of the timer U1, a pin 7 of the timer U1 and a feedback control module, the cathode of the diode D2 is connected with the anode of the diode D3, the cathode of the diode D3 is connected with one end of the resistor R2 and the base of the triode V1, the other end of the resistor R2 is grounded, the other end of the emitter connector RP1 of the triode V1 is grounded, and the other end of the triode V1 is connected with the collector of the capacitor C3.
As still further aspects of the invention: the feedback control module comprises a resistor R3, a potentiometer RP2 and an amplifier U1, wherein one end of the resistor R3 is connected with the cathode of a diode D4, the other end of the resistor R3 is connected with one end of the potentiometer RP2, the other end of the potentiometer RP2 is grounded, the sliding end of the potentiometer RP2 is connected with the inverting end of the amplifier U1, the non-inverting end of the amplifier U1 is connected with the sawtooth wave generating module, and the output end of the amplifier U1 is connected with the base electrode of a triode V2.
As still further aspects of the invention: the output indication module comprises a voltmeter V and an ammeter A, one end of the voltmeter V is connected with one end of the ammeter A, the boosting module is connected with the other end of the voltmeter V to the ground, and the other end of the ammeter A outputs voltage VOUT.
A power supply boost control method is applied to the power supply boost control circuit, and comprises the following steps:
step 1, supplying power to equipment;
and 3, adjusting the output voltage.
As still further aspects of the invention: in step 1, the circuit switch S1 is closed, and the energy storage battery VCC supplies power.
As still further aspects of the invention: in step 2, the sliding end of the potentiometer RP1 is adjusted to adjust the frequency of the saw-tooth wave.
As still further aspects of the invention: in step 3, the output voltage information is observed through the voltmeter V and the ammeter A, and the output voltage is adjusted by adjusting the potentiometer RP 2.
Compared with the prior art, the invention has the beneficial effects that: the invention outputs the control signal to the boost module through a line by the sawtooth wave generating module for adjusting the boost amplitude and the feedback control module for constructing the output stable voltage, and has simpler circuit structure and smaller occupied volume.
Drawings
Fig. 1 is a schematic diagram of a boost control circuit for a power supply.
Fig. 2 is a circuit diagram of a boost control circuit of a power supply.
Fig. 3 is a schematic diagram of a boosting control method of a power supply.
Detailed Description
The technical solutions of 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, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
Referring to fig. 1, a boost control circuit of a power supply includes:
the power supply module is used for supplying direct current and outputting the direct current to the sawtooth wave generating module and the boosting module;
the boosting module is used for boosting the input voltage and outputting the boosted input voltage;
the sawtooth wave generation module is used for outputting sawtooth waves to be supplied to the feedback control module, and the boosting amplitude is regulated through the feedback control module;
the feedback control module is used for sampling the output voltage of the boost module, obtaining the sampling voltage, feeding back to the boost module and constructing voltage-stabilizing output;
the output indication module is used for indicating the voltage and current values output by the boosting module;
the power supply module is connected with the sawtooth wave generating module and the boosting module, the boosting module is connected with the output indicating module, the sawtooth wave generating module is connected with the feedback control module, and the feedback control module is connected with the boosting module.
In this embodiment: referring to fig. 2, the power supply module includes an energy storage battery VCC, a switch S1, a resistor R1, and a diode D1, where the energy storage battery VCC is connected to one end of the switch S1, the other end of the switch S1 is connected to one end of the resistor R1, and the boost module, the other end of the resistor R1 is connected to the negative electrode of the diode D1, and the saw-tooth wave boost module, and the positive electrode of the diode D1 is grounded.
After the switch S1 is closed, the energy storage battery VCC supplies power, the diode D1 is a voltage stabilizing diode, and stable low-voltage direct current is supplied to the sawtooth wave generating module.
In this embodiment: referring to fig. 2, the boost module includes an inductor L1, a diode D4, a triode V2, and a capacitor C4, wherein one end of the inductor L1 is connected to the power supply module, the other end of the inductor L1 is connected to a collector of the triode V2, an anode of the diode D4, an emitter of the triode V2 is grounded, a base of the triode V2 is connected to the feedback control module, a cathode of the diode D4 is connected to one end of the capacitor C4, an output indication module, and a feedback control module, and the other end of the capacitor C4 is grounded.
The voltage amplitude on the capacitor C4 is controlled by controlling the conducting frequency of the triode V2; when the triode V2 is conducted, a part of current flowing through the inductor L1 flows to the triode V2, and the other part flows to the diode D4 to reach the capacitor C4, and the voltage on the capacitor C4 is the voltage of the energy storage battery VCC; when the triode V2 is cut off, the current of the inductor L1 cannot be suddenly changed, and at the moment, the current flowing to the triode V2 also flows to the diode D4 to reach the capacitor C4, so that the voltage on the capacitor C4 is increased, and the boosting is completed.
In this embodiment: referring to fig. 2, the sawtooth wave generating module includes a capacitor C1, a timer U1, a capacitor C2, a diode D3, a resistor R2, a potentiometer RP1, a triode V1, and a capacitor C3, wherein the timer U1 is a 555 timer, one end of the capacitor C1 is connected to the power supply module, the pin 4 of the timer U1, the pin 8 of the timer U1, the anode of the diode D2, one end of the potentiometer RP1, the other end of the capacitor C1 is grounded, the pin 5 of the timer U1 is grounded through the capacitor C2, the pin 1 of the timer U1 is grounded, the pin 2 of the timer U1 is connected to the pin 6 of the timer U1, the pin 7 of the timer U1, the feedback control module, the cathode of the diode D2 is connected to the anode of the diode D3, the cathode of the diode D3 is connected to one end of the resistor R2, the base of the resistor V1 is grounded, the other end of the resistor R2 is connected to the other end of the potentiometer RP1, and the collector of the other end of the triode V1 is connected to the capacitor C3.
The timer U1 and the peripheral circuits thereof together form an astable multivibrator, a sawtooth wave signal is output through the pins No. 2, no. 6 and No. 7 of the timer U1, the maximum value of the sawtooth wave signal is 2/3 of the voltage at the pin No. 8 of the timer U1, the minimum value of the sawtooth wave signal is 1/3 of the voltage at the pin No. 8 of the timer U1, and the frequency of the sawtooth wave signal is determined by the capacitor C2 and the potentiometer RP1, so that the frequency of the sawtooth wave signal is changed by adjusting the potentiometer RP 1.
In this embodiment: referring to fig. 2, the feedback control module includes a resistor R3, a potentiometer RP2, an amplifier U1, wherein one end of the resistor R3 is connected to the cathode of the diode D4, the other end of the resistor R3 is connected to one end of the potentiometer RP2, the other end of the potentiometer RP2 is grounded, the sliding end of the potentiometer RP2 is connected to the inverting end of the amplifier U1, the non-inverting end of the amplifier U1 is connected to the sawtooth wave generating module, and the output end of the amplifier U1 is connected to the base of the triode V2.
The output voltage of the boosting module is the voltage on the resistor R3 and the potentiometer RP2, the potentiometer RP2 is used for sampling the output voltage to obtain sampling voltage (the lower half part of the sliding end of the potentiometer RP 2) which is output to the inverting end of the amplifier U1, and the non-inverting end of the amplifier U1 is a sawtooth wave signal; the amplifier U1 outputs PWM signals to control the conducting frequency of the triode V2; when the output voltage changes, the sampling voltage changes, the voltage at the inverting terminal of the amplifier U1 changes, the duty ratio of the output PWM signal changes in the opposite direction, the conduction frequency of the triode V2 changes in the opposite direction, and the output voltage changes in the opposite direction, so that the voltage-stabilizing output is constructed. The sawtooth wave signal for adjusting the boosting amplitude of the boosting module and the feedback signal for constructing the voltage stabilizing output of the boosting module are output to the base electrode of the triode V2 through the amplifier U1, one control circuit, two control signals and circuit wiring are reduced. Both adjusting potentiometers RP1, RP2 can adjust the output voltage.
In this embodiment: referring to fig. 2, the output indication module includes a voltmeter V and an ammeter a, one end of the voltmeter V is connected to one end of the ammeter a, and the boost module, the other end of the voltmeter V is grounded, and the other end of the ammeter a outputs a voltage VOUT.
The magnitude of the output voltage and the magnitude of the current are observed through the voltmeter V and the ammeter A.
In this embodiment: referring to fig. 3, a power supply boost control method is applied to the power supply boost control circuit described above, and includes the following steps:
step 1, supplying power to equipment;
and 3, adjusting the output voltage.
In this embodiment: referring to fig. 3, in step 1, a circuit switch S1 is closed, and an energy storage battery VCC supplies power.
In this embodiment: referring to fig. 3, in step 2, the sliding end of the potentiometer RP1 is adjusted to adjust the frequency of the saw-tooth wave.
In this embodiment: referring to fig. 3, in step 3, the output voltage information is observed through the voltmeter V and the ammeter a, and the adjusting potentiometer RP2 adjusts the output voltage.
The working principle of the invention is as follows: the power supply module supplies direct current and outputs the direct current to the sawtooth wave generating module and the boosting module; the boosting module boosts the input voltage and outputs the boosted voltage; the sawtooth wave generation module outputs sawtooth waves to be supplied to the feedback control module, and the boosting amplitude is regulated through the feedback control module; the feedback control module samples the output voltage of the boost module, acquires the sampled voltage, feeds back the sampled voltage to the boost module, and constructs voltage-stabilizing output; the output indication module indicates the voltage and current values output by the boosting module.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. A boost control circuit of a power supply is characterized in that:
the boost control circuit of the power supply includes:
the power supply module is used for supplying direct current and outputting the direct current to the sawtooth wave generating module and the boosting module;
the boosting module is used for boosting the input voltage and outputting the boosted input voltage;
the sawtooth wave generation module is used for outputting sawtooth waves to be supplied to the feedback control module, and the boosting amplitude is regulated through the feedback control module;
the feedback control module is used for sampling the output voltage of the boost module, obtaining the sampling voltage, feeding back to the boost module and constructing voltage-stabilizing output;
the output indication module is used for indicating the voltage and current values output by the boosting module;
the power supply module is connected with the sawtooth wave generating module and the boosting module, the boosting module is connected with the output indicating module, the sawtooth wave generating module is connected with the feedback control module, and the feedback control module is connected with the boosting module.
2. The boost control circuit of claim 1, wherein the power supply module comprises an energy storage battery VCC, a switch S1, a resistor R1, and a diode D1, wherein the energy storage battery VCC is connected to one end of the switch S1, the other end of the switch S1 is connected to one end of the resistor R1, the boost module, the other end of the resistor R1 is connected to the negative electrode of the diode D1, the saw-tooth wave boost module, and the positive electrode of the diode D1 is grounded.
3. The boost control circuit of claim 1 wherein the boost module comprises an inductor L1, a diode D4, a triode V2, and a capacitor C4, wherein one end of the inductor L1 is connected to the power supply module, the other end of the inductor L1 is connected to the collector of the triode V2, the anode of the diode D4, the emitter of the triode V2 is grounded, the base of the triode V2 is connected to the feedback control module, the cathode of the diode D4 is connected to one end of the capacitor C4, the output indication module, the feedback control module, and the other end of the capacitor C4 is grounded.
4. The boost control circuit of claim 1, wherein the sawtooth wave generating module includes a capacitor C1, a timer U1, a capacitor C2, a diode D3, a resistor R2, a potentiometer RP1, a triode V1, and a capacitor C3, the timer U1 is a 555 timer, one end of the capacitor C1 is connected to the power supply module, a pin 4 of the timer U1, a pin 8 of the timer U1, an anode of the diode D2, one end of the potentiometer RP1, the other end of the capacitor C1 is grounded, a pin 5 of the timer U1 is grounded through the capacitor C2, a pin 1 of the timer U1 is grounded, a pin 2 of the timer U1 is connected to a pin 6 of the timer U1, a pin 7 of the timer U1, and a feedback control module, a cathode of the diode D2 is connected to an anode of the diode D3, an anode of the diode D3 is connected to one end of the resistor R2, another end of the resistor R2 is grounded, and another end of the triode V1 is connected to the collector of the capacitor C3.
5. The power supply boost control circuit of claim 4, wherein the feedback control module comprises a resistor R3, a potentiometer RP2, and an amplifier U1, one end of the resistor R3 is connected to the cathode of the diode D4, the other end of the resistor R3 is connected to one end of the potentiometer RP2, the other end of the potentiometer RP2 is grounded, the sliding end of the potentiometer RP2 is connected to the inverting end of the amplifier U1, the non-inverting end of the amplifier U1 is connected to the sawtooth wave generating module, and the output end of the amplifier U1 is connected to the base of the triode V2.
6. The boost control circuit of claim 1 wherein the output indication module comprises a voltmeter V, an ammeter a, wherein one end of the voltmeter V is connected to one end of the ammeter a, the boost module, the other end of the voltmeter V is grounded, and the other end of the ammeter a outputs the voltage VOUT.
7. A boosting control method of a power supply, applied to the boosting control circuit of a power supply according to any one of claims 1 to 6, characterized by comprising the steps of:
step 1, supplying power to equipment;
step 2, adjusting sawtooth waves;
and 3, adjusting the output voltage.
8. The method according to claim 7, wherein in step 1, the power is supplied from the energy storage battery VCC by closing the circuit switch S1.
9. The method according to claim 7, wherein in step 2, the sliding end of the potentiometer RP1 is adjusted to adjust the frequency of the sawtooth wave.
10. The method according to claim 7, wherein in step 3, the output voltage information is observed by the voltmeter V and the ammeter a, and the output voltage is adjusted by the adjusting potentiometer RP 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211710329.8A CN116131604A (en) | 2022-12-29 | 2022-12-29 | Boost control circuit and method of power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211710329.8A CN116131604A (en) | 2022-12-29 | 2022-12-29 | Boost control circuit and method of power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116131604A true CN116131604A (en) | 2023-05-16 |
Family
ID=86303893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211710329.8A Pending CN116131604A (en) | 2022-12-29 | 2022-12-29 | Boost control circuit and method of power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116131604A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4536700A (en) * | 1984-03-28 | 1985-08-20 | United Technologies Corporation | Boost feedforward pulse width modulation regulator |
| US20090315529A1 (en) * | 2008-06-23 | 2009-12-24 | Samsung Electronics Co., Ltd | Sawtooth wave generating circuit and switch mode power supply device having the same |
| CN103441658A (en) * | 2013-08-30 | 2013-12-11 | 深圳市汇顶科技股份有限公司 | Boost controller and Boost converter |
| CN216216517U (en) * | 2021-10-18 | 2022-04-05 | 上海航联电子科技有限公司 | Vehicle-mounted power supply circuit |
-
2022
- 2022-12-29 CN CN202211710329.8A patent/CN116131604A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4536700A (en) * | 1984-03-28 | 1985-08-20 | United Technologies Corporation | Boost feedforward pulse width modulation regulator |
| US20090315529A1 (en) * | 2008-06-23 | 2009-12-24 | Samsung Electronics Co., Ltd | Sawtooth wave generating circuit and switch mode power supply device having the same |
| CN103441658A (en) * | 2013-08-30 | 2013-12-11 | 深圳市汇顶科技股份有限公司 | Boost controller and Boost converter |
| CN216216517U (en) * | 2021-10-18 | 2022-04-05 | 上海航联电子科技有限公司 | Vehicle-mounted power supply circuit |
Non-Patent Citations (1)
| Title |
|---|
| ELECTRONIC: "555定时器IC锯齿波发生器", pages 1, Retrieved from the Internet <URL:https://www.dianziaihaozhe.com/mulu/guowai/2816.html> * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103475223A (en) | Step-down converter | |
| TWI363946B (en) | Power supplies, power supply controllers, and power supply controlling methods | |
| CN110429820B (en) | Control circuit and control method for improving transient response of BOOST during Down Mode switching | |
| CN211701859U (en) | Negative voltage input and negative voltage output switch type voltage reduction conversion circuit | |
| CN116131604A (en) | Boost control circuit and method of power supply | |
| CN115395769B (en) | Protection regulating circuit | |
| CN217956763U (en) | Solar cell panel with voltage stabilization output | |
| CN104682687A (en) | Soft start-based voltage regulating circuit and soft start method thereof | |
| CN100394343C (en) | Parameter type switch voltage-stablized power supply and its control circuit | |
| CN113258771B (en) | Control circuit and power supply chip | |
| CN220022629U (en) | DC-DC boosting power supply | |
| CN111555416B (en) | Battery charge-discharge control circuit | |
| CN211377899U (en) | PD power supply circuit and PD power supply unit based on PPS standard | |
| CN101630898B (en) | Circuit for regulating and controlling output power of power supply | |
| CN209200724U (en) | A kind of efficient charging circuit for the wide input power of model airplane battery | |
| CN207588729U (en) | A kind of line compensation circuit and Switching Power Supply | |
| CN218958792U (en) | Direct-current power supply conversion circuit | |
| CN217954986U (en) | Output amplitude regulating circuit for electrical stimulation | |
| CN116418249B (en) | AC/DC bidirectional conversion circuit | |
| CN220271789U (en) | Voltage-stabilized power supply for electronic engineering | |
| CN217406409U (en) | Non-isolated DC/DC boost switch converter circuit | |
| CN110994952A (en) | Switch pulse control circuit | |
| CN219980655U (en) | Pulse energy feedback welding power supply | |
| CN205142003U (en) | DC -DC converter | |
| CN102843030B (en) | Topological circuit and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |