CN220022627U - Power supply voltage stabilizing and regulating controller - Google Patents
Power supply voltage stabilizing and regulating controller Download PDFInfo
- Publication number
- CN220022627U CN220022627U CN202320752532.5U CN202320752532U CN220022627U CN 220022627 U CN220022627 U CN 220022627U CN 202320752532 U CN202320752532 U CN 202320752532U CN 220022627 U CN220022627 U CN 220022627U
- Authority
- CN
- China
- Prior art keywords
- module
- output
- voltage stabilizing
- regulating
- capacitor
- 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.)
- Active
Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 102
- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 85
- 230000006641 stabilisation Effects 0.000 claims abstract description 25
- 238000011105 stabilization Methods 0.000 claims abstract description 25
- 230000001276 controlling effect Effects 0.000 claims abstract description 7
- 238000005070 sampling Methods 0.000 claims abstract description 5
- 239000003990 capacitor Substances 0.000 claims description 50
- 230000033228 biological regulation Effects 0.000 claims description 23
- 239000003381 stabilizer Substances 0.000 claims description 22
- 238000001914 filtration Methods 0.000 claims description 6
- 230000003828 downregulation Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
Abstract
The utility model discloses a power supply voltage stabilizing and regulating controller, which relates to the technical field of power supply control and comprises a voltage stabilizing and regulating module, a voltage stabilizing and regulating module and a power supply control module, wherein the voltage stabilizing and regulating module is used for sampling voltage and carrying out positive value voltage stabilizing and regulating on electric energy output by the power supply module; the negative pressure generating module is used for carrying out negative pressure stabilizing treatment on the electric energy output by the power supply module; the negative pressure regulating module is used for comparing the negative pressure stabilization with the positive pressure stabilization and carrying out negative regulation; the output control module is used for comparing the positive voltage stabilization with the regulated negative voltage stabilization and controlling the work of the negative pressure regulating module; the first output module and the second output module are both used for outputting electric energy. The power supply voltage stabilizing and regulating controller is characterized in that a voltage stabilizing and regulating module and a negative pressure generating module respectively conduct positive voltage stabilizing treatment and negative voltage stabilizing treatment on the power supply module, the negative pressure regulating module compares positive voltage stabilizing with negative voltage stabilizing so as to regulate an output negative voltage stabilizing value, and the output control module avoids the problem that the output of negative values and positive values is not necessarily required.
Description
Technical Field
The utility model relates to the technical field of power supply control, in particular to a power supply voltage stabilizing and regulating controller.
Background
The power supply is a device which converts other forms of energy into electric energy and provides the electric energy for a circuit (electronic equipment), in order to ensure the normal operation of the electronic equipment, a power supply voltage stabilizing and regulating controller consisting of specific voltage regulating devices is adopted to carry out voltage stabilizing and regulating on the input electric energy, and in order to meet the negative pressure requirement, two groups of identical voltage regulating devices are adopted to carry out reverse connection so as to realize identical positive and negative voltage stabilizing and supply, but the positive and negative voltage values are determined according to the selected voltage regulating devices, the type of the controller is specific, the positive and negative voltage values cannot be regulated in a wide range, and the positive and negative voltages cannot be regulated equally, so that the application range of the controller is smaller, and the improvement is needed.
Disclosure of Invention
The embodiment of the utility model provides a power supply voltage stabilizing and regulating controller, which aims to solve the problems in the background technology.
According to an embodiment of the present utility model, there is provided a power supply voltage regulation controller including: the device comprises a power supply module, a voltage stabilizing and adjusting module, a negative pressure generating module, a negative pressure adjusting module, an output control module, a first output module and a second output module;
the power supply module is used for carrying out voltage reduction, rectification and filtering treatment on the input electric energy;
the voltage stabilizing and regulating module is connected with the power supply module and used for sampling the electric energy input into the first output module through the voltage feedback circuit, and carrying out voltage stabilizing and regulating treatment on the electric energy output by the power supply module through the first voltage stabilizing and regulating circuit according to the sampled signal and outputting positive voltage stabilizing;
the negative pressure generating module is connected with the power supply module and is used for processing the electric energy output by the power supply module through the second voltage stabilizing and regulating circuit and outputting negative voltage stabilizing;
the negative pressure regulating module is connected with the voltage stabilizing regulating module and the negative pressure generating module, and is used for regulating and outputting the negative voltage stabilizing output by the negative pressure generating module through the output regulating circuit, comparing the electric energy output by the output regulating circuit with the positive voltage stabilizing output by the voltage stabilizing regulating module and controlling the regulating degree of the output regulating circuit;
the output control module is connected with the negative pressure generation module, the negative pressure regulation module and the voltage regulation module and is used for comparing the positive voltage regulation output by the voltage regulation module with the negative voltage regulation output by the negative pressure generation module and controlling the working state of the negative pressure regulation module;
the first output module is connected with the voltage stabilizing and adjusting module and is used for receiving positive voltage stabilization output by the voltage stabilizing and adjusting module;
the second output module is connected with the negative pressure regulating module and is used for receiving negative pressure stabilization output by the negative pressure regulating module.
Compared with the prior art, the utility model has the beneficial effects that: the power supply voltage stabilizing and regulating controller is characterized in that a voltage stabilizing and regulating module and a negative pressure generating module respectively conduct positive voltage stabilizing and negative voltage stabilizing treatment on the power supply module, the negative pressure regulating module compares the output positive voltage stabilizing and negative voltage stabilizing, and the output regulating circuit regulates the negative voltage stabilizing value, so that the output positive voltage stabilizing value is the same as the absolute value of the processed negative value, the same positive and negative value output is realized through different voltage stabilizing treatment devices, the complexity of the circuit selection of the controller is reduced, the application range of the controller is improved, and the problem that the output negative value and the positive value are not constant due to the fact that the absolute value of the negative pressure generated by the negative pressure generating module is smaller than the voltage stabilizing and regulating module is avoided by the output control module, and the output power supply precision is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments of the present utility model will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic block diagram of a power supply voltage stabilizing and regulating controller according to an embodiment of the present utility model.
Fig. 2 is a circuit diagram of a power supply voltage stabilizing adjustment controller according to an embodiment of the present utility model.
Fig. 3 is a circuit diagram of a connection of an output control module according to an embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In one embodiment, referring to fig. 1, a power supply regulator controller includes: the device comprises a power supply module 1, a voltage stabilizing and regulating module 2, a negative pressure generating module 3, a negative pressure regulating module 4, an output control module 5, a first output module 6 and a second output module 7;
specifically, the power module 1 is configured to perform voltage reduction, rectification and filtering on input electric energy;
the voltage stabilizing and regulating module 2 is connected with the power supply module 1 and is used for sampling the electric energy input into the first output module 6 through a voltage feedback circuit, and carrying out voltage stabilizing and regulating treatment on the electric energy output by the power supply module 1 through a first voltage stabilizing and regulating circuit according to a sampled signal and outputting positive voltage stabilizing;
the negative pressure generating module 3 is connected with the power supply module 1 and is used for processing the electric energy output by the power supply module 1 through a second voltage stabilizing and regulating circuit and outputting negative voltage stabilization;
the negative pressure regulating module 4 is connected with the pressure regulating module 2 and the negative pressure generating module 3, and is used for regulating and outputting negative pressure regulation output by the negative pressure generating module 3 through an output regulating circuit, comparing electric energy output by the output regulating circuit with pressure regulation output by the pressure regulating module 2 and controlling the regulating degree of the output regulating circuit;
the output control module 5 is connected with the negative pressure generation module 3, the negative pressure regulation module 4 and the pressure regulation module 2, and is used for comparing the positive pressure regulation output by the pressure regulation module 2 with the negative pressure regulation output by the negative pressure generation module 3 and controlling the working state of the negative pressure regulation module 4;
the first output module 6 is connected with the voltage stabilizing and adjusting module 2 and is used for receiving positive voltage stabilization output by the voltage stabilizing and adjusting module 2;
and the second output module 7 is connected with the negative pressure regulating module 4 and is used for receiving negative pressure stabilization output by the negative pressure regulating module 4.
In a specific embodiment, the power module 1 may use a voltage reduction circuit and a rectifying and filtering circuit to perform voltage reduction, rectification and filtering on the ac power input by the power supply, which will not be described herein; the voltage stabilizing and regulating module 2 can adopt a voltage feedback circuit and a first voltage stabilizing and regulating circuit, wherein the first voltage stabilizing and regulating circuit is used for stabilizing and regulating and outputting positive voltage, the voltage feedback circuit is used for voltage sampling and feedback value output, the feedback value is adjustable, and then the positive voltage stabilizing value output by the first voltage stabilizing and regulating circuit is regulated; the negative pressure generating module 3 can output negative pressure stabilization by adopting a second pressure stabilization regulating circuit; the negative pressure regulating module 4 can adopt an output comparing circuit and an output regulating circuit, the output regulating circuit regulates the input negative pressure stabilizing, the output comparing circuit compares the regulated negative pressure stabilizing with the regulated positive pressure stabilizing so as to regulate the regulating degree of the output regulating circuit, and the tracking control of the negative pressure stabilizing to the positive pressure stabilizing is completed; the output control module 5 can adopt an output comparison control circuit to compare the output positive voltage with the output negative voltage and control the working state of the negative regulating module; the first output module 6 and the second output module 7 are both used as electric energy output ports, and are not described herein.
In another embodiment, referring to fig. 2 and 3, the power module 1 includes a power supply, a first transformer W1, a first rectifier T1, a first capacitor C1, and a second capacitor C2;
specifically, the power supply is connected with the primary side of the first transformer W1, the first end and the third end of the secondary side of the first transformer W1 are respectively connected with the first end and the third end of the first rectifier T1, the second end of the secondary side of the first transformer W1 is grounded, the fourth end of the first rectifier T1 is connected with the first end of the second capacitor C2 and the negative pressure generating module 3, the second end of the first rectifier T1 is connected with the first end of the first capacitor C1 and the voltage stabilizing and regulating module 2, and the second end of the first capacitor C1 and the second end of the second capacitor C2 are both grounded.
Further, the voltage stabilizing and adjusting module 2 includes a first voltage stabilizer U1, a second transformer W2, a third capacitor C3, a first diode D1, a first resistor R1, a first potentiometer RP1, and a second resistor R2; the first output module 6 comprises a sixth capacitor C6 and a first output port;
specifically, the input end of the first voltage stabilizer U1 is connected to the first end of the first capacitor C1 and the first end of the primary side of the first transformer W1, the output end of the first voltage stabilizer U1 is connected to one end of the third capacitor C3 and the second end of the primary side of the first transformer W1, the first end of the secondary side of the first transformer W1 is connected to the other end of the third capacitor C3 and the anode of the first diode D1, the cathode of the first diode D1 is connected to one end of the first resistor R1, one end of the sixth capacitor C6, the first end of the first output port and the output control module 5, the other end of the first resistor R1 is connected to one end of the second capacitor C2 through the first potentiometer RP1, the other end of the second capacitor C2, the ground end of the first voltage stabilizer U1, the other end of the sixth capacitor C6 and the second end of the first output port are all grounded, and the slide end of the first potentiometer RP1 is connected to the feedback end of the first voltage stabilizer U1.
In a specific embodiment, the first voltage regulator U1 is selected from, but not limited to, an XL6009 chip, and implements positive voltage-stabilizing output; the first potentiometer RP1, the first resistor R1 and the second resistor R2 form a voltage feedback circuit, and the feedback value of the first potentiometer RP1 can be adjusted.
Further, the negative pressure generating module 3 includes a second voltage regulator U2 and a fourth capacitor C4;
specifically, the input end of the second voltage regulator U2 is connected to the first end of the second capacitor C2, the output end of the second voltage regulator U2 is connected to the first end of the fourth capacitor C4 and the negative pressure regulating module 4, and the ground end of the second voltage regulator U2 and the second end of the fourth capacitor C4 are grounded.
In a specific embodiment, the second voltage stabilizer U2 may be a 78XX series voltage stabilizer, and the specific model is not limited.
Further, the negative pressure regulating module 4 comprises a third resistor R3, a fourth resistor R4, a first comparator A1, a first switching tube VT1 and a second switching tube VT2; the second output module 7 comprises a fifth capacitor C5 and a second output port;
specifically, one end of the third resistor R3 is connected to the cathode of the first diode D1, the other end of the third resistor R3 is connected to the inverting terminal of the first comparator A1 and connected to the emitter of the second switching tube VT2, one end of the fifth capacitor C5 and the first end of the second output port through the fourth resistor R4, the base of the second switching tube VT2 is connected to the emitter of the first switching tube VT1, the base of the first switching tube VT1 is connected to the output terminal of the first comparator A1, the non-inverting terminal of the first comparator A1, the second end of the second output port and the other end of the fifth capacitor C5 are grounded, the first power supply terminal of the first comparator A1 is connected to the output control module 5, and the second power supply terminal of the first comparator A1 is connected to the collector of the second switching tube VT2, the collector of the first switching tube VT1 and the first end of the fourth capacitor C4.
In a specific embodiment, the first comparator A1 is optional, but is not limited to the LM393 comparator; zero potential is taken between the third resistor R3 and the fourth resistor R4 so as to enable the first comparator A1 to carry out comparison and judgment; the first switching tube VT1 and the second switching tube VT2 may be PNP transistors, where the first switching tube VT1 is configured to control the turn-on degree of the second switching tube VT2, so that the second switching tube VT2 adjusts the output negative voltage of the second voltage regulator U2.
Further, the output control module 5 includes a fifth resistor R5, a sixth resistor R6, a second comparator A2, and a third switching tube VT3;
specifically, one end of the fifth resistor R5 and the collector of the third switching tube VT3 are both connected to the cathode of the first diode D1, the other end of the fifth resistor R5 is connected to the inverting terminal of the second comparator A2 and connected to the first end of the fourth capacitor C4 through the sixth resistor R6, the in-phase terminal of the second comparator A2 is grounded, the output terminal of the second comparator A2 is connected to the base of the third switching tube VT3, and the emitter of the third switching tube VT3 is connected to the first power supply terminal of the first comparator A1.
In a specific embodiment, the fifth resistor R5 and the sixth resistor R6 are used for detecting the voltage difference value output by the first voltage regulator U1 and the second voltage regulator tube, and are judged by the second comparator A2; the second comparator A2 is optional, but not limited to the LM393 comparator; the third switching transistor VT3 may be an NPN transistor, which is configured to control the operating state of the first comparator A1.
The utility model relates to a power supply voltage stabilizing and regulating controller, which is characterized in that alternating current power output by a power supply is subjected to voltage reduction, rectification and filtering treatment by a first transformer W1, a first rectifier T1, a first capacitor C1 and a second capacitor C2, so that the alternating current power is received by a first voltage stabilizer U1, a second transformer W2 is regulated by matching with voltage signals fed back by a first resistor R1, a first potentiometer RP1 and a second resistor R2, positive voltage stabilization is output, negative voltage stabilization is received and output by the second voltage stabilizer U2, negative voltage stabilization is regulated by a second switching tube VT2, meanwhile, the first voltage stabilization and the regulated negative voltage stabilization are compared by a first comparator A1, so that the first switching tube VT1 is driven to be conducted, the conduction degree of the second switching tube VT2 is regulated, the absolute value of the regulated voltage stabilization is the same as the positive value, the required positive voltage stabilization and the negative voltage stabilization is provided, meanwhile, the voltage output by the first voltage stabilizer U1 and the second voltage stabilizer U2 is detected by a fifth resistor R5 and a sixth resistor R6, and the negative voltage stabilization is output by the second voltage stabilizer U2, and the voltage stabilization is compared by the second comparator A2, and the absolute voltage stabilization is not higher than the first voltage stabilizer U1 when the first voltage stabilizer A2 is not in operation, and the absolute voltage stabilization is not higher than the first voltage stabilizer U1.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model 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 utility model 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 (6)
1. A power supply voltage stabilizing and regulating controller is characterized in that,
the power supply voltage stabilizing and adjusting controller comprises: the device comprises a power supply module, a voltage stabilizing and adjusting module, a negative pressure generating module, a negative pressure adjusting module, an output control module, a first output module and a second output module;
the power supply module is used for carrying out voltage reduction, rectification and filtering treatment on the input electric energy;
the voltage stabilizing and regulating module is connected with the power supply module and used for sampling the electric energy input into the first output module through the voltage feedback circuit, and carrying out voltage stabilizing and regulating treatment on the electric energy output by the power supply module through the first voltage stabilizing and regulating circuit according to the sampled signal and outputting positive voltage stabilizing;
the negative pressure generating module is connected with the power supply module and is used for processing the electric energy output by the power supply module through the second voltage stabilizing and regulating circuit and outputting negative voltage stabilizing;
the negative pressure regulating module is connected with the voltage stabilizing regulating module and the negative pressure generating module, and is used for regulating and outputting the negative voltage stabilizing output by the negative pressure generating module through the output regulating circuit, comparing the electric energy output by the output regulating circuit with the positive voltage stabilizing output by the voltage stabilizing regulating module and controlling the regulating degree of the output regulating circuit;
the output control module is connected with the negative pressure generation module, the negative pressure regulation module and the voltage regulation module and is used for comparing the positive voltage regulation output by the voltage regulation module with the negative voltage regulation output by the negative pressure generation module and controlling the working state of the negative pressure regulation module;
the first output module is connected with the voltage stabilizing and adjusting module and is used for receiving positive voltage stabilization output by the voltage stabilizing and adjusting module;
the second output module is connected with the negative pressure regulating module and is used for receiving negative pressure stabilization output by the negative pressure regulating module.
2. The power supply regulator controller of claim 1, wherein the power supply module comprises a power supply, a first transformer, a first rectifier, a first capacitor, and a second capacitor;
the power supply is connected with the primary side of the first transformer, the first end and the third end of the secondary side of the first transformer are respectively connected with the first end and the third end of the first rectifier, the second end of the secondary side of the first transformer is grounded, the fourth end of the first rectifier is connected with the first end of the second capacitor and the negative pressure generating module, the second end of the first rectifier is connected with the first end of the first capacitor and the voltage stabilizing and regulating module, and the second end of the first capacitor and the second end of the second capacitor are grounded.
3. The power supply voltage regulation controller of claim 2, wherein the voltage regulation module comprises a first voltage regulator, a second transformer, a third capacitor, a first diode, a first resistor, a first potentiometer, and a second resistor; the first output module comprises a sixth capacitor and a first output port;
the input end of the first voltage stabilizer is connected with the first end of the first capacitor and the first end of the primary side of the first transformer, the output end of the first voltage stabilizer is connected with one end of the third capacitor and the second end of the primary side of the first transformer, the first end of the secondary side of the first transformer is connected with the other end of the third capacitor and the anode of the first diode, the cathode of the first diode is connected with one end of the first resistor, one end of the sixth capacitor, the first end of the first output port and the output control module, the other end of the first resistor is connected with one end of the second capacitor through the first potentiometer, the other end of the second capacitor, the grounding end of the first voltage stabilizer, the other end of the sixth capacitor and the second end of the first output port are grounded, and the sliding blade end of the first potentiometer is connected with the feedback end of the first voltage stabilizer.
4. A power supply regulator controller according to claim 3, wherein the negative voltage generating module comprises a second regulator and a fourth capacitor;
the input end of the second voltage stabilizer is connected with the first end of the second capacitor, the output end of the second voltage stabilizer is connected with the first end of the fourth capacitor and the negative pressure regulating module, and the grounding end of the second voltage stabilizer and the second end of the fourth capacitor are grounded.
5. The power supply voltage stabilizing and regulating controller according to claim 4, wherein the negative pressure regulating module comprises a third resistor, a fourth resistor, a first comparator, a first switching tube and a second switching tube; the second output module comprises a fifth capacitor and a second output port;
one end of the third resistor is connected with the cathode of the first diode, the other end of the third resistor is connected with the inverting terminal of the first comparator and is connected with the emitter of the second switching tube, one end of the fifth capacitor and the first end of the second output port through the fourth resistor, the base electrode of the second switching tube is connected with the emitter of the first switching tube, the base electrode of the first switching tube is connected with the output end of the first comparator, the same-phase terminal of the first comparator, the second end of the second output port and the other end of the fifth capacitor are grounded, the first power end of the first comparator is connected with the output control module, and the second power end of the first comparator is connected with the collector of the second switching tube, the collector of the first switching tube and the first end of the fourth capacitor.
6. The power supply voltage stabilizing and regulating controller according to claim 5, wherein the output control module comprises a fifth resistor, a sixth resistor, a second comparator and a third switching tube;
one end of the fifth resistor and the collector electrode of the third switching tube are both connected with the cathode of the first diode, the other end of the fifth resistor is connected with the inverting end of the second comparator and is connected with the first end of the fourth capacitor through the sixth resistor, the in-phase end of the second comparator is grounded, the output end of the second comparator is connected with the base electrode of the third switching tube, and the emitter electrode of the third switching tube is connected with the first power end of the first comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320752532.5U CN220022627U (en) | 2023-04-07 | 2023-04-07 | Power supply voltage stabilizing and regulating controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320752532.5U CN220022627U (en) | 2023-04-07 | 2023-04-07 | Power supply voltage stabilizing and regulating controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220022627U true CN220022627U (en) | 2023-11-14 |
Family
ID=88674811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320752532.5U Active CN220022627U (en) | 2023-04-07 | 2023-04-07 | Power supply voltage stabilizing and regulating controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220022627U (en) |
-
2023
- 2023-04-07 CN CN202320752532.5U patent/CN220022627U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105452974A (en) | Voltage converter compensation apparatus and methods | |
| EP3972107A1 (en) | Switching power supply, power supply adapter, and charger | |
| CN205178905U (en) | Adjustable constant voltage power supply of intelligence | |
| CN211123821U (en) | Linear voltage stabilizing circuit applied to ammeter and terminal | |
| CN115378413A (en) | Control circuit and control method | |
| CN220022627U (en) | Power supply voltage stabilizing and regulating controller | |
| CN217981625U (en) | Voltage sampling detection circuit of switching power supply and switching power supply | |
| US20170155340A1 (en) | Power conditioning circuit with hybrid full wave rectifiction using matched virtual junction rectifier | |
| CN217904258U (en) | OLED power supply circuit | |
| CN218352402U (en) | Voltage regulating circuit of intelligent chip | |
| CN101192069A (en) | Multipath DC voltage-stabilizing output circuit | |
| CN213690367U (en) | DC voltage stabilizing circuit based on comparison amplifier | |
| CN204705931U (en) | Wide region is adjustable linear stabilized power supply | |
| CN114489216A (en) | Protection circuit applied to LDO (low dropout regulator) | |
| CN220271789U (en) | Voltage-stabilized power supply for electronic engineering | |
| CN219609501U (en) | Voltage stabilizing control regulating circuit | |
| CN219247697U (en) | Control circuit of power device and power electronic equipment | |
| CN218782553U (en) | Energy-saving voltage stabilizing circuit | |
| CN220673622U (en) | Voltage regulating DC-DC power supply | |
| CN111193424A (en) | Circuit for aging direct-current passive EMI filter | |
| CN115967286B (en) | Constant voltage and constant current adjustable control circuit of high-voltage electrostatic generator | |
| CN214429306U (en) | Circuit structure capable of adjusting charging voltage in large range | |
| CN214799292U (en) | Wide-range output direct-current power supply | |
| CN215420105U (en) | Self-adaptive fire detection voltage generation circuit and fire detection equipment | |
| CN216873077U (en) | Voltage dynamic adjustment circuit for power output and intelligent power supply thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |