CN215910831U - Output power automatic regulating circuit - Google Patents
Output power automatic regulating circuit Download PDFInfo
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- CN215910831U CN215910831U CN202122265726.6U CN202122265726U CN215910831U CN 215910831 U CN215910831 U CN 215910831U CN 202122265726 U CN202122265726 U CN 202122265726U CN 215910831 U CN215910831 U CN 215910831U
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Abstract
The utility model discloses an automatic output power regulating circuit, which comprises a voltage reducing circuit, a rectifying circuit, a time setting circuit, an oscillating circuit and a switching circuit, wherein the voltage reducing circuit is used for being electrically connected with a power supply; the rectifying circuit is electrically connected with the voltage reduction circuit and is used for being electrically connected with a target object; the time setting circuit is electrically connected with the rectifying circuit; the oscillating circuit is electrically connected with the time setting circuit; the switch circuit is electrically connected with the oscillating circuit and is used for being electrically connected with the target object. The utility model can rapidly adjust the output power.
Description
Technical Field
The utility model relates to the technical field of output power control circuits, in particular to an output power automatic regulating circuit.
Background
In the related art of power control, in order to ensure constant output power, a system designer may automatically control the output power by means of a negative feedback loop. That is, by detecting the output power and then comparing the detected value with the set value, the output power is adjusted by its error being negatively fed back to the control circuit. For a conventional negative feedback circuit, the adjustment can be performed by a first-order feedback loop, a pure analog or pure digital detection feedback control mechanism. But the feedback speed is slower and the dynamic feedback is relatively narrow through the pure analog feedback control; the pure digital feedback control can indeed quickly feed back the system, but because of precision reasons such as digital quantization, the feedback and control precision of the system have certain errors, and under certain occasions with high power control stability, the digital feedback control cannot meet the requirements of the stability and precision of the system.
Furthermore, if the output power needs to be changed as required during the operation of the system, the set value and the detected value of the comparison loop need to be changed according to the structure of the common feedback control circuit, and if the feedback control system performs fast adjustment at this time, oscillation of the output of the feedback loop is inevitably caused, so that the output power fluctuates up and down, which is not beneficial to normal operation and stable adjustment of the equipment. If the feedback control system performs slow adjustment, the adjustment step is slow, and the system needs a long time to enter a steady state. Therefore, the traditional negative feedback control method is not suitable for application scenes needing to rapidly adjust the output power.
SUMMERY OF THE UTILITY MODEL
The utility model solves the technical problem of providing an automatic output power regulating circuit which can quickly regulate the output power.
The utility model provides an output power automatic regulating circuit, which comprises a voltage reducing circuit, a rectifying circuit, a time setting circuit, an oscillating circuit and a switch circuit, wherein the voltage reducing circuit is used for being electrically connected with a power supply; the rectifying circuit is electrically connected with the voltage reduction circuit and is used for being electrically connected with a target object; the time setting circuit is electrically connected with the rectifying circuit; the oscillating circuit is electrically connected with the time setting circuit; the switch circuit is electrically connected with the oscillating circuit and is used for being electrically connected with the target object.
In one embodiment, the oscillation circuit comprises a first resistor, a first capacitor, a second capacitor, a first diode, a second diode and a square wave signal output chip, wherein a first end of the first resistor is electrically connected with the time setting circuit, a second end of the first resistor is electrically connected with a cathode of the first diode, a first end of the first capacitor is electrically connected with an anode of the first diode and the square wave signal output chip, and a second end of the first capacitor is used for being electrically connected with a power supply; the first end of the second capacitor is electrically connected with a power supply, and the second end of the second capacitor is electrically connected with the square wave signal output chip; the anode of the second diode is electrically connected with the time setting circuit and the square wave signal output chip, the cathode of the second diode is electrically connected with the square wave signal output chip, and the square wave signal output chip is electrically connected with the switch circuit.
In one embodiment, the time setting circuit includes a second resistor and a potentiometer, a first end of the second resistor is electrically connected to the output end of the rectifying circuit, a second end of the second resistor is connected to a first end of the potentiometer, a second end of the potentiometer is connected to a first end of the first resistor, and a third end of the potentiometer is connected to the square wave signal output chip and an anode of the second diode.
In one embodiment, the switching circuit comprises a third resistor, a triode and a bidirectional triode, wherein a first end of the third resistor is electrically connected with the square wave signal output chip, and a second end of the third resistor is electrically connected with a base electrode of the triode; the collector of the triode is electrically connected with the output end of the rectifying circuit, the emitter of the triode is electrically connected with the first end of the bidirectional controllable silicon, the second end of the bidirectional controllable silicon is electrically connected with the target object, and the third end of the bidirectional controllable silicon is used for being electrically connected with the power supply.
In one embodiment, the output power automatic regulating circuit further comprises an indicating circuit, the indicating circuit comprises a fourth resistor and a third diode, a first end of the fourth resistor is electrically connected with the output end of the rectifying circuit, a second end of the fourth resistor is connected with an anode of the third diode, and a cathode of the third diode is electrically connected with a collector of the triode; wherein the third diode is a light emitting diode.
In one embodiment, the rectifying circuit includes a fifth resistor, a fourth diode, and a fifth diode, a first end of the fifth resistor is electrically connected to the target, a second end of the fifth resistor is electrically connected to an anode of the fourth diode and a cathode of the fifth diode, an anode of the fourth diode is electrically connected to the output terminal of the voltage-reducing circuit, a cathode of the fourth diode is electrically connected to the time-setting circuit, and an anode of the fifth diode is electrically connected to a power supply.
In one embodiment, the voltage reduction circuit includes a third capacitor, a first end of the third capacitor is electrically connected to a power supply, and a second end of the third capacitor is electrically connected to an anode of the fourth diode.
In one embodiment, the output power automatic regulating circuit further comprises a filter circuit, and the filter circuit is electrically connected with the output end of the rectifying circuit.
In one embodiment, the output power automatic regulating circuit further comprises a voltage stabilizing circuit, and the voltage stabilizing circuit is electrically connected with the output end of the rectifying circuit.
The utility model has the following beneficial effects: according to the utility model, through the matching among the voltage reduction circuit, the rectifying circuit, the time setting circuit, the oscillating circuit and the switching circuit, the oscillating circuit is electrically connected with the target object through the switching circuit. When the power output to the target object needs to be adjusted, the time setting circuit is only needed to be set, and the level signal output by the oscillating circuit is controlled by the time setting circuit, so that the output power can be quickly adjusted. In addition, the utility model has the advantages of simple structure and convenient use.
Drawings
Fig. 1 is a circuit diagram of an output power automatic regulating circuit of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, if not conflicting, the embodiments of the present invention and the features of the embodiments may be combined with each other within the scope of protection of the present invention.
Referring to fig. 1, the present invention provides an output power automatic regulating circuit, which includes a voltage reducing circuit 1, a rectifying circuit 2, a time setting circuit 3, an oscillating circuit 4 and a switching circuit 5, wherein the voltage reducing circuit 1 is used for being electrically connected to a power supply. The rectifying circuit 2 is electrically connected with the voltage reducing circuit 1 and is used for being electrically connected with a target object. The time setting circuit 3 is electrically connected with the rectifying circuit 2. The oscillation circuit 4 is electrically connected to the time setting circuit 3. The switch circuit 5 is electrically connected to the oscillation circuit 4 and is used for electrically connecting to the target object P. The target object P may be a motor, which may be selected according to an application scenario, and is not specifically limited herein.
The oscillation circuit 4 comprises a first resistor R1, a first capacitor C1, a second capacitor C2, a first diode D1, a second diode D2 and a square wave signal output chip U, wherein a first end of the first resistor R1 is electrically connected with the time setting circuit 3, a second end of the first resistor R1 is electrically connected with a cathode of the first diode D1, a first end of the first capacitor C1 is electrically connected with an anode of the first diode D1 and the square wave signal output chip U, and a second end of the first capacitor C1 is electrically connected with a power supply. The first end of the second capacitor C2 is used for being electrically connected with a power supply, and the second end of the second capacitor C2 is electrically connected with the square wave signal output chip U.
The anode of the second diode D2 is electrically connected to the time setting circuit 3 and the square wave signal output chip U, the cathode of the second diode D2 is electrically connected to the square wave signal output chip U, and the square wave signal output chip U is electrically connected to the switch circuit 5. In this embodiment, the square wave signal output chip U is CC7555, which is a timer, and the timer chip is a circuit with strong function, simple circuit, flexible use, and convenience for adjustment , and has the advantages of low power consumption, wide power supply voltage range, and extremely high input impedance.
The time setting circuit 3 comprises a second resistor R2 and a potentiometer VD, the first end of the second resistor R2 is electrically connected with the output end of the rectifying circuit 2, the second end of the second resistor R2 is connected with the first end of the potentiometer VD, the second end of the potentiometer VD is connected with the first end of the first resistor R1, and the third end of the potentiometer VD is connected with the square wave signal output chip U and the anode of the second diode D2. When the device works, the duty ratio of the square wave output by the square wave signal output chip U can be changed by adjusting the potentiometer VD, and then the adjustment of the output power is realized.
The switch circuit 5 comprises a third resistor R3, a triode VT and a triac VS, wherein a first end of the third resistor R3 is electrically connected with the square wave signal output chip U, and a second end of the third resistor R3 is electrically connected with a base electrode of the triode VT. The collector of the triode VT is electrically connected with the output end of the rectifying circuit 2, the emitter of the triode VT is electrically connected with the first end of the bidirectional controllable silicon VS, the second end of the bidirectional controllable silicon VS is electrically connected with the target object, and the third end of the bidirectional controllable silicon VS is used for being electrically connected with the power supply.
The output power automatic regulating circuit further comprises an indicating circuit 6, the indicating circuit 6 comprises a fourth resistor R4 and a third diode D3, a first end of the fourth resistor R4 is electrically connected with the output end of the rectifying circuit 2, a second end of the fourth resistor R4 is connected with an anode of the third diode D3, and a cathode of the third diode D3 is electrically connected with a collector of the triode VT. Wherein the third diode D3 is a light emitting diode. That is, the collector of the transistor VT is electrically connected to the output terminal of the rectifier circuit 2 through the indicator circuit 6. The indicating circuit 6 can indicate the working state of the circuit 6, and is convenient for users to use.
The rectifying circuit 2 includes a fifth resistor R5, a fourth diode D4, and a fifth diode D5, a first end of the fifth resistor R5 is electrically connected to the target, a second end of the fifth resistor R5 is electrically connected to an anode of the fourth diode D4 and a cathode of the fifth diode D5, an anode of the fourth diode D4 is electrically connected to the output terminal of the voltage step-down circuit 1, a cathode of the fourth diode D4 is electrically connected to the time setting circuit 3, and an anode of the fifth diode D5 is electrically connected to a power supply. The rectifier circuit 2 has the advantage of simple structure.
The voltage reducing circuit 1 comprises a third capacitor C3, a first end of the third capacitor C3 is electrically connected with a power supply, and a second end of the third capacitor C3 is electrically connected with an anode of the fourth diode D4. In this embodiment, the third capacitor C3 is a metal film capacitor. The metal film capacitor has the advantages of high stability and reliability and good heat resistance.
The output power automatic regulating circuit further comprises a filter circuit 7 and a voltage stabilizing circuit 8, wherein the filter circuit 7 is electrically connected with the output end of the rectifying circuit 2. The voltage stabilizing circuit 8 is electrically connected with the output end of the rectifying circuit 2. In the present embodiment, the filter circuit 7 and the voltage regulator circuit 8 are respectively a fourth capacitor C4 and a zener diode ZD. In addition, the output of constant power can be realized through the selection of the switch S, thereby being more convenient for users to use.
In summary, in the present invention, the voltage-reducing circuit 1, the rectifying circuit 2, the time setting circuit 3, the oscillating circuit 4, and the switching circuit 5 are coupled, and the oscillating circuit 4 is electrically connected to the target object through the switching circuit 5. When the power output to the target object needs to be adjusted, the time setting circuit 3 is only needed to be set, and the level signal output by the oscillating circuit 4 is controlled by the time setting circuit 3, so that the output power can be quickly adjusted. In addition, the utility model has the advantages of simple structure and convenient use.
The output power automatic regulating circuit provided by the present invention is described in detail above, and the principle and the implementation of the present invention are explained in this document by applying specific examples, and the above descriptions of the examples are only used to help understanding the method of the present invention and the core idea thereof. Meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, the present disclosure is only an embodiment of the present disclosure, and not intended to limit the scope of the present disclosure, and all equivalent structures or equivalent flow transformations made by using the present disclosure and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present disclosure, and should not be construed as limiting the present disclosure.
Claims (9)
1. An automatic output power regulating circuit is characterized by comprising a voltage reducing circuit, a rectifying circuit, a time setting circuit, an oscillating circuit and a switching circuit, wherein the voltage reducing circuit is used for being electrically connected with a power supply; the rectifying circuit is electrically connected with the voltage reduction circuit and is used for being electrically connected with a target object; the time setting circuit is electrically connected with the rectifying circuit; the oscillating circuit is electrically connected with the time setting circuit; the switch circuit is electrically connected with the oscillating circuit and is used for being electrically connected with the target object.
2. The output power automatic regulating circuit according to claim 1, wherein the oscillation circuit comprises a first resistor, a first capacitor, a second capacitor, a first diode, a second diode and a square wave signal output chip, a first end of the first resistor is electrically connected to the time setting circuit, a second end of the first resistor is electrically connected to a cathode of the first diode, a first end of the first capacitor is electrically connected to an anode of the first diode and the square wave signal output chip, and a second end of the first capacitor is used for electrically connecting to a power supply; the first end of the second capacitor is electrically connected with a power supply, and the second end of the second capacitor is electrically connected with the square wave signal output chip; the anode of the second diode is electrically connected with the time setting circuit and the square wave signal output chip, the cathode of the second diode is electrically connected with the square wave signal output chip, and the square wave signal output chip is electrically connected with the switch circuit.
3. The output power automatic regulating circuit according to claim 2, wherein the time setting circuit includes a second resistor and a potentiometer, a first end of the second resistor is electrically connected to the output end of the rectifying circuit, a second end of the second resistor is connected to a first end of the potentiometer, a second end of the potentiometer is connected to a first end of the first resistor, and a third end of the potentiometer is connected to the square wave signal output chip and an anode of the second diode.
4. The automatic output power regulating circuit according to claim 3, wherein the switching circuit comprises a third resistor, a triode and a triac, a first end of the third resistor is electrically connected to the square wave signal output chip, and a second end of the third resistor is electrically connected to a base of the triode; the collector of the triode is electrically connected with the output end of the rectifying circuit, the emitter of the triode is electrically connected with the first end of the bidirectional controllable silicon, the second end of the bidirectional controllable silicon is electrically connected with the target object, and the third end of the bidirectional controllable silicon is used for being electrically connected with the power supply.
5. The output power automatic regulating circuit according to claim 4, further comprising an indicating circuit, wherein the indicating circuit comprises a fourth resistor and a third diode, a first end of the fourth resistor is electrically connected to the output end of the rectifying circuit, a second end of the fourth resistor is connected to an anode of the third diode, and a cathode of the third diode is electrically connected to a collector of the triode; wherein the third diode is a light emitting diode.
6. The output power automatic regulating circuit according to claim 1, wherein the rectifying circuit includes a fifth resistor, a fourth diode and a fifth diode, a first end of the fifth resistor is electrically connected to the object, a second end of the fifth resistor is electrically connected to an anode of the fourth diode and a cathode of the fifth diode, an anode of the fourth diode is electrically connected to the output terminal of the voltage step-down circuit, a cathode of the fourth diode is electrically connected to the time setting circuit, and an anode of the fifth diode is electrically connected to a power supply.
7. The output power autoregulating circuit of claim 6, wherein the voltage dropping circuit comprises a third capacitor, a first terminal of the third capacitor is electrically connected to a power supply, and a second terminal of the third capacitor is electrically connected to an anode of the fourth diode.
8. The output power autoregulating circuit of claim 1, further comprising a filter circuit electrically connected to an output of the rectifying circuit.
9. The output power autoregulating circuit of claim 1, further comprising a voltage stabilizing circuit electrically connected to an output of the rectifying circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122265726.6U CN215910831U (en) | 2021-09-17 | 2021-09-17 | Output power automatic regulating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122265726.6U CN215910831U (en) | 2021-09-17 | 2021-09-17 | Output power automatic regulating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215910831U true CN215910831U (en) | 2022-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122265726.6U Active CN215910831U (en) | 2021-09-17 | 2021-09-17 | Output power automatic regulating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215910831U (en) |
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2021
- 2021-09-17 CN CN202122265726.6U patent/CN215910831U/en active Active
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