Output voltage regulating circuit

Through the voltage input module and auxiliary voltage relief module that adjust the output voltage through the capacitor charging speed, the problems of complex structure and cumbersome adjustment in the prior art are solved, and simple and efficient voltage regulation is achieved.

CN223141769UActive Publication Date: 2025-07-22SHANGHAI DONGWU ELECTRICAL APPLIANCES
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Patent Information

Application Number
CN202420987174.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-09
Publication Date
2025-07-22
Estimated Expiration
2034-05-09

AI Technical Summary

Technical Problem

The existing AC voltage output regulation depends on transformers and rectifiers and other equipment, with complex structures and cumbersome adjustments under high-voltage output conditions.

Method used

The voltage input module, voltage regulation module and auxiliary voltage relief module are adopted to adjust the output voltage through the capacitor charging speed, and the auxiliary voltage relief module is used to detect the input voltage and control the capacitor discharge, simplifying the voltage regulation process.

Benefits of technology

It realizes that the voltage regulation structure is simplified without the need for rectifying components, and directly adjusts the AC voltage output, improving the regulation efficiency and simplicity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an output voltage regulating circuit, which relates to the field of voltage output, and comprises a voltage input module, a voltage output module, a power supply module, a power supply module, a voltage output module and a control module, and is characterized in that the voltage input module is used for introducing 220V alternating current and outputting the 220V alternating current to the voltage output module; meanwhile, the 220V alternating current is output to the auxiliary voltage relief module and the voltage regulation module after voltage reduction. The voltage adjusting module is used for adjusting the output voltage of the voltage output module based on the capacitor charging speed; the auxiliary voltage relief module is used for detecting the magnitude of the input voltage, and when the input voltage reaches a threshold value, the capacitor is controlled to discharge and recover to the initial zero voltage state of the capacitor, so that the voltage regulation module carries out next output voltage regulation; the beneficial effects of the utility model are that the voltage of alternating current is reduced and then is directly supplied to the auxiliary voltage release module and the voltage regulation module, the auxiliary voltage release module and the voltage regulation module regulate the output voltage of the voltage output module according to the input voltage, no related rectification component is needed, and the structure is simple.
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Description

Technical Field

[0001] The utility model relates to the field of voltage output, in particular to an output voltage regulating circuit. Background Technique

[0002] The existing AC voltage output regulation often relies on related devices such as transformers and AC regulators to regulate the output voltage. Under high-voltage output conditions, it needs to be adjusted after power-off, and the adjustment is rather cumbersome.

[0003] The existing AC voltage output regulation often sets up a low-voltage voltage regulation circuit to regulate the high-voltage output. In order to facilitate the adjustment, the low-voltage voltage regulation circuit is often converted into a DC circuit, and related rectifiers and other components need to be added, resulting in a complicated structure that needs to be improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide an output voltage regulating circuit to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An output voltage regulating circuit includes:

[0007] A voltage input module, which is used to introduce 220V alternating current and output it to the voltage output module; at the same time, it steps down the 220V alternating current and outputs it to the auxiliary pressure relief module and the voltage regulation module;

[0008] A voltage regulation module, which is used to regulate the magnitude of the output voltage of the voltage output module based on the capacitor charging speed;

[0009] An auxiliary pressure relief module, which is used to detect the magnitude of the input voltage. When the input voltage reaches the threshold, it controls the capacitor to discharge and returns to the initial zero voltage state of the capacitor, so that the voltage regulation module can perform the next output voltage regulation;

[0010] A voltage output module, which is used to output an adjustable voltage to the load;

[0011] The voltage input module is connected to the voltage regulation module, the auxiliary pressure relief module, and the voltage output module. The auxiliary pressure relief module is connected to the voltage regulation module, and the voltage regulation module is connected to the voltage output module.

[0012] As a further scheme of the utility model: the voltage input module includes a live wire L, a neutral wire N, and a transformer W. One end of the input side of the transformer W is connected to the live wire L, the other end of the input side of the transformer W is connected to the neutral wire N, one end of the output side of the transformer W is grounded, and the other end of the output side of the transformer W is connected to the voltage regulation module and the auxiliary pressure relief module.

[0013] As a further solution of the present utility model: The voltage regulation module includes a potentiometer RP1, a resistor R6, a capacitor C2, a diode D2, a resistor R7, and an MOS transistor V3. One end of the potentiometer RP1 is connected to one end of the resistor R7 and the voltage input module. The other end of the potentiometer RP1 is connected to one end of the resistor R6. The other end of the resistor R6 is connected to one end of the capacitor C2, the G pole of the MOS transistor V3, and the positive pole of the diode D2. The other end of the capacitor C2 is grounded. The negative pole of the diode D2 is connected to the auxiliary pressure relief module. The D pole of the MOS transistor V3 is connected to the other end of the resistor R7. The S pole of the MOS transistor V3 is connected to the voltage output module.

[0014] As a further solution of the present utility model: The auxiliary pressure relief module includes a resistor R1, a resistor R2, a capacitor C1, a diode D1, a resistor R3, a resistor R4, a resistor R5, a triode V1, and a triode V2. One end of the resistor R1 is connected to one end of the resistor R4, one end of the resistor R5, and the voltage input module. The other end of the resistor R1 is connected to one end of the resistor R2, one end of the capacitor C1, and the negative pole of the diode D1. The other end of the resistor R2 is grounded. The other end of the capacitor C1 is grounded. The positive pole of the diode D1 is connected to one end of the resistor R3 and the base of the triode V1. The other end of the resistor R3 is grounded. The collector of the triode V1 is connected to the other end of the resistor R4. The emitter of the triode V1 is connected to the base of the triode V2. The collector of the triode V2 is connected to the other end of the resistor R5. The emitter of the triode V2 is connected to the voltage regulation module.

[0015] As a further solution of the present utility model: The voltage output module includes a thyristor Z1 and a load X. One end of the load X is connected to the live wire L. The other end of the load X is connected to the first end of the thyristor Z1. The second end of the thyristor Z1 is connected to the neutral wire N. The third end of the thyristor Z1 is connected to the voltage regulation module.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: After stepping down the alternating current, the present utility model directly supplies power to the auxiliary pressure relief module and the voltage regulation module. The auxiliary pressure relief module and the voltage regulation module adjust the output voltage of the voltage output module according to the input voltage, without the need for relevant rectifying components, and the structure is simple. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of a circuit for regulating the output voltage.

[0018] Figure 2 It is a circuit diagram of the voltage input module and the voltage output module.

[0019] Figure 3 It is a circuit diagram of the auxiliary pressure relief module and the voltage regulation module. Detailed Embodiment

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figure 1 , an output voltage regulation circuit, comprising:

[0022] A voltage input module for introducing 220V alternating current and outputting it to the voltage output module; at the same time, stepping down the 220V alternating current and outputting it to the auxiliary pressure relief module and the voltage regulation module;

[0023] A voltage regulation module for adjusting the output voltage magnitude of the voltage output module based on the capacitor charging speed;

[0024] An auxiliary pressure relief module for detecting the input voltage magnitude, and when the input voltage reaches the threshold, controlling the capacitor to discharge and restoring it to the initial zero voltage state of the capacitor, so that the voltage regulation module performs the next output voltage regulation;

[0025] A voltage output module for outputting an adjustable voltage to the load;

[0026] The voltage input module is connected to the voltage regulation module, the auxiliary pressure relief module, and the voltage output module. The auxiliary pressure relief module is connected to the voltage regulation module, and the voltage regulation module is connected to the voltage output module.

[0027] In this embodiment: Please refer to Figure 2 , the voltage input module includes a live wire L, a neutral wire N, and a transformer W. One end of the input side of the transformer W is connected to the live wire L, the other end of the input side of the transformer W is connected to the neutral wire N, one end of the output side of the transformer W is grounded, and the other end of the output side of the transformer W is connected to the voltage regulation module and the auxiliary pressure relief module.

[0028] The live wire L and the neutral wire N are introduced through a two-hole plug, and the voltage 220V is input. On the one hand, the 220V voltage is directly supplied to the voltage output module. At the same time, the 220V voltage is stepped down by the transformer W and then output to the voltage regulation module and the auxiliary pressure relief module.

[0029] In this embodiment: Please refer to Figure 3, the voltage regulation module includes a potentiometer RP1, a resistor R6, a capacitor C2, a diode D2, a resistor R7, and an MOS transistor V3. One end of the potentiometer RP1 is connected to one end of the resistor R7 and the voltage input module. The other end of the potentiometer RP1 is connected to one end of the resistor R6. The other end of the resistor R6 is connected to one end of the capacitor C2, the G pole of the MOS transistor V3, and the positive pole of the diode D2. The other end of the capacitor C2 is grounded. The negative pole of the diode D2 is connected to the auxiliary pressure relief module. The D pole of the MOS transistor V3 is connected to the other end of the resistor R7. The S pole of the MOS transistor V3 is connected to the voltage output module.

[0030] In each cycle of the input alternating current, after the voltage is input, the capacitor C2 is charged through the potentiometer RP1 and the resistor R6. When the capacitor C2 is charged enough to turn on the MOS transistor V3, the MOS transistor V3 turns on and provides a trigger signal (common point A) for the voltage output module. In this cycle, as the auxiliary pressure relief module works, the voltage on the capacitor C2 will be discharged through the diode D2 and return to the initial state, waiting to be charged and discharged in the next cycle.

[0031] In this embodiment: Please refer to Figure 3 , the auxiliary pressure relief module includes a resistor R1, a resistor R2, a capacitor C1, a diode D1, a resistor R3, a resistor R4, a resistor R5, a triode V1, and a triode V2. One end of the resistor R1 is connected to one end of the resistor R4, one end of the resistor R5, and the voltage input module. The other end of the resistor R1 is connected to one end of the resistor R2, one end of the capacitor C1, and the negative pole of the diode D1. The other end of the resistor R2 is grounded. The other end of the capacitor C1 is grounded. The positive pole of the diode D1 is connected to one end of the resistor R3 and the base of the triode V1. The other end of the resistor R3 is grounded. The collector of the triode V1 is connected to the other end of the resistor R4. The emitter of the triode V1 is connected to the base of the triode V2. The collector of the triode V2 is connected to the other end of the resistor R5. The emitter of the triode V2 is connected to the voltage regulation module.

[0032] In one cycle, after the voltage of the input alternating current is divided by the resistors R1 and R2, when the voltage on the resistor R2 is still high enough to turn on the zener diode D1, the base of the triode V1 is at a high level, the triode V1 turns on, and then triggers the triode V2 to turn on, discharging the voltage on the capacitor C2 through the diode D2 and the triode V2. After waiting for the capacitor C2 to finish discharging pressure and the voltage of the input alternating current becomes smaller, the diode D1, the triode V1, and the triode V2 are cut off again, waiting for the next cycle.

[0033] In this embodiment: Please refer to Figure 2 , the voltage output module includes a thyristor Z1 and a load X. One end of the load X is connected to the live wire L. The other end of the load X is connected to the first end of the thyristor Z1. The second end of the thyristor Z1 is connected to the neutral wire N. The third end of the thyristor Z1 is connected to the voltage regulation module.

[0034] When the voltage on the capacitor C2 is large enough, the MOS transistor V3 conducts, thereby controlling the thyristor Z1 to conduct, and the load X is powered on to work. By controlling the conduction time of the thyristor Z1 within one cycle, the voltage on the load X can be adjusted. Therefore, by adjusting the resistance value of the potentiometer RP1 to change the charging speed of the capacitor C2, the conduction time of the thyristor Z1 can be changed, and the voltage on the load X can be adjusted.

[0035] The working principle of the present utility model is as follows: The voltage input module is used to introduce 220V alternating current and output it to the voltage output module; at the same time, the 220V alternating current is stepped down and output to the auxiliary pressure relief module and the voltage regulation module; the voltage regulation module is used to adjust the output voltage of the voltage output module based on the capacitor charging speed; the auxiliary pressure relief module is used to detect the input voltage magnitude, and when the input voltage reaches the threshold, it controls the capacitor to discharge and returns to the initial zero voltage state of the capacitor, so that the voltage regulation module performs the next output voltage regulation; the voltage output module is used to output an adjustable voltage to the load.

[0036] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0037] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An output voltage regulation circuit, characterized in that, The output voltage regulation circuit includes: A voltage input module, which is used to introduce 220V alternating current and output it to the voltage output module; at the same time, it steps down the 220V alternating current and outputs it to the auxiliary pressure relief module and the voltage regulation module; A voltage regulation module, which is used to adjust the magnitude of the output voltage of the voltage output module based on the capacitor charging speed; An auxiliary pressure relief module, which is used to detect the magnitude of the input voltage. When the input voltage reaches the threshold, it controls the capacitor to discharge and returns to the initial zero voltage state of the capacitor, so that the voltage regulation module performs the next output voltage regulation; A voltage output module, which is used to output an adjustable voltage to the load; The voltage input module is connected to the voltage regulation module, the auxiliary pressure relief module, and the voltage output module. The auxiliary pressure relief module is connected to the voltage regulation module, and the voltage regulation module is connected to the voltage output module.

2. The output voltage regulation circuit according to claim 1, wherein The voltage input module includes a live wire L, a neutral wire N, and a transformer W. One end of the input side of the transformer W is connected to the live wire L, and the other end of the input side of the transformer W is connected to the neutral wire N. One end of the output side of the transformer W is grounded, and the other end of the output side of the transformer W is connected to the voltage regulation module and the auxiliary pressure relief module.

3. The output voltage regulation circuit according to claim 1, wherein The voltage regulation module includes a potentiometer RP1, a resistor R6, a capacitor C2, a diode D2, a resistor R7, and a MOS transistor V3. One end of the potentiometer RP1 is connected to one end of the resistor R7 and the voltage input module. The other end of the potentiometer RP1 is connected to one end of the resistor R6. The other end of the resistor R6 is connected to one end of the capacitor C2, the G pole of the MOS transistor V3, and the positive pole of the diode D2. The other end of the capacitor C2 is grounded. The negative pole of the diode D2 is connected to the auxiliary pressure relief module. The D pole of the MOS transistor V3 is connected to the other end of the resistor R7. The S pole of the MOS transistor V3 is connected to the voltage output module.

4. The output voltage regulation circuit according to claim 3, wherein The auxiliary pressure relief module includes a resistor R1, a resistor R2, a capacitor C1, a diode D1, a resistor R3, a resistor R4, a resistor R5, a triode V1, and a triode V2. One end of the resistor R1 is connected to one end of the resistor R4, one end of the resistor R5, and the voltage input module. The other end of the resistor R1 is connected to one end of the resistor R2, one end of the capacitor C1, and the negative pole of the diode D1. The other end of the resistor R2 is grounded. The other end of the capacitor C1 is grounded. The positive pole of the diode D1 is connected to one end of the resistor R3 and the base of the triode V1. The other end of the resistor R3 is grounded. The collector of the triode V1 is connected to the other end of the resistor R4. The emitter of the triode V1 is connected to the base of the triode V2. The collector of the triode V2 is connected to the other end of the resistor R5. The emitter of the triode V2 is connected to the voltage regulation module.

5. The output voltage regulation circuit according to claim 1, characterized in that, The voltage output module includes a thyristor Z1 and a load X. One end of the load X is connected to the live wire L, the other end of the load X is connected to the first end of the thyristor Z1, the second end of the thyristor Z1 is connected to the neutral wire N, and the third end of the thyristor Z1 is connected to the voltage regulation module.