CN218449891U - AC-DC conversion power supply circuit - Google Patents
AC-DC conversion power supply circuit Download PDFInfo
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- CN218449891U CN218449891U CN202221870605.2U CN202221870605U CN218449891U CN 218449891 U CN218449891 U CN 218449891U CN 202221870605 U CN202221870605 U CN 202221870605U CN 218449891 U CN218449891 U CN 218449891U
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Abstract
The utility model discloses a AC-DC switching power supply circuit relates to the voltage supply field, and this AC-DC switching power supply circuit includes: the commercial power supply module is used for introducing 220V alternating current and outputting the alternating current to the direct current conversion module; the alternating current-to-direct current module is used for electrifying protection and converting alternating current into direct current to be output to the voltage stabilization control module; the voltage stabilization control module is used for stabilizing input voltage and outputting the input voltage to the load working module; the load working module is used for the load to be powered on for working; the switch control module is used for controlling whether the commercial power supply module supplies alternating current to the alternating current-to-direct current module; commercial power supply module connects and exchanges direct current module, compares with prior art, the beneficial effects of the utility model are that: the utility model discloses an exchange and change direct current module and adopt chip ZD832, save the circuit volume, and be equipped with the prevention of temperature sensitive resistance and go up the electric current in the twinkling of an eye, long-range switch on through on-off control module control circuit, guarantee user's safety.
Description
Technical Field
The utility model relates to a voltage supply field specifically is an AC-DC conversion power supply circuit.
Background
Due to different power environments in different regions, voltage application ranges of different electrical appliances are different. A voltage of 220V is common. With the development of the science and technology in the world, high-power direct-current appliances are more and more, and direct current is generally obtained by direct alternating current conversion.
The safety problem is most important in the use process of the high-power direct-current electric appliance, when a fault occurs in a larger voltage, the user is threatened, and the safety protection needs to be further improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an AC-DC conversion power supply circuit to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
an AC-DC conversion power supply circuit comprising:
the commercial power supply module is used for introducing 220V alternating current and outputting the alternating current to the direct current conversion module;
the alternating current-to-direct current module is used for electrifying protection and converting alternating current into direct current to be output to the voltage stabilization control module;
the voltage stabilization control module is used for stabilizing input voltage and outputting the input voltage to the load working module;
the load working module is used for loading to obtain electricity for working;
the switch control module is used for controlling whether the commercial power supply module supplies alternating current to the alternating current-to-direct current module;
the utility power supply module is connected with the AC-to-DC module, the AC-to-DC module is connected with the voltage stabilization control module, the voltage stabilization control module is connected with the load working module, the load working module is connected with the AC-to-DC module, and the switch control module is connected with the AC-to-DC module.
As the utility model discloses further scheme again: alternating current-to-direct current module includes switch S21, switch S22, temperature sensitive resistor RT, electric capacity C1, resistance R1, electric capacity C2, resistance R2, integrated circuit U1, electric capacity C3, the commercial power supply module includes live wire L, zero line N, live wire L is connected to switch S21 ' S one end, zero line N is connected to switch S22 ' S one end, switch S21 ' S the other end passes through temperature sensitive resistor RT and connects integrated circuit U1 ' S No. 1 pin, switch S22 ' S the other end connecting resistance R1 ' S one end, electric capacity C1 ' S the other end is connected to resistance R1 ' S the other end, integrated circuit U1 ' S No. 2 pin, integrated circuit U1 ' S No. 7 pin passes through electric capacity C2 ground connection, integrated circuit U1 ' S No. 8 pin passes through resistance R2 ground connection, integrated circuit U1 ' S No. 9 pin, no. 10 pin ground connection, integrated circuit U1 ' S No. 15 pin connection integrated circuit U1 ' S No. 16 pin, electric capacity C3 ' S one end, the steady voltage control module, electric capacity C3 ' S the other end ground connection, integrated circuit U1 ' S No. 13 pin connection load module.
As a further aspect of the present invention: the voltage stabilizing control module comprises a capacitor C4, a resistor R3, a triode V1, a triode V2, a diode D2, a resistor R4, a resistor R5, a potentiometer R6 and a capacitor C5, wherein a collector of the triode V1 is connected with one end of the capacitor C4, one end of the resistor R3 and an alternating current-to-direct current module, the other end of the capacitor C4 is grounded, the other end of the resistor R3 is connected with a base electrode of the triode V1 and a collector electrode of the triode V2, an emitting electrode of the triode V2 is connected with a negative electrode of the diode D2 and one end of the resistor R4, an anode of the diode D2 is grounded, the emitting electrode of the triode V1 is connected with the other end of the resistor R4, one end of the resistor R5, one end of the capacitor C5 and a load working module, the other end of the capacitor C5 is grounded, the other end of the resistor R5 is connected with one end of the potentiometer R6, a sliding end of the potentiometer R6 is connected with the base electrode of the triode V2, and the other end of the potentiometer R6 is grounded.
As a further aspect of the present invention: the load working module comprises a load X and a resistor R7, one end of the load X is connected with the voltage stabilization control module, the other end of the load X is connected with the resistor R7, and the other end of the resistor R7 is connected with the No. 13 pin of the integrated circuit U1.
As a further aspect of the present invention: the switch control module comprises a battery E1, a switch S1, a diode D1 and a relay J2, wherein the positive electrode of the battery E1 is connected with one end of the switch S1, the other end of the switch S1 is connected with the negative electrode of the diode D1 and one end of the relay J2, and the positive electrode of the diode D1 is connected with the negative electrode of the battery E1 and the other end of the relay J2.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an exchange and change direct current module and adopt chip ZD832, save the circuit volume, and be equipped with the prevention of temperature sensitive resistance and go up electric heavy current in the twinkling of an eye, long-range switch-on through on-off control module control circuit, guarantee user's safety.
Drawings
Fig. 1 is a schematic diagram of an AC-DC conversion power supply circuit.
Fig. 2 is a circuit diagram of an AC-DC conversion power supply circuit.
Fig. 3 is a circuit diagram of the switch control module.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1, an AC-DC conversion power circuit includes:
the commercial power supply module is used for introducing 220V alternating current and outputting the alternating current to the direct current conversion module;
the alternating current-to-direct current module is used for electrifying protection and converting alternating current into direct current to be output to the voltage stabilization control module;
the voltage stabilization control module is used for stabilizing input voltage and outputting the input voltage to the load working module;
the load working module is used for the load to be powered on for working;
the switch control module is used for controlling whether the commercial power supply module supplies alternating current to the alternating current-to-direct current module;
the commercial power supply module is connected with the AC-DC module, the AC-DC module is connected with the voltage stabilization control module, the voltage stabilization control module is connected with the load working module, the load working module is connected with the AC-DC module, and the switch control module is connected with the AC-DC module.
In this embodiment: referring to fig. 2, the ac-dc conversion module includes a switch S21, a switch S22, a temperature-sensitive resistor RT, a capacitor C1, a resistor R1, a capacitor C2, a resistor R2, an integrated circuit U1, a capacitor C3, the utility power supply module includes a live wire L, a null wire N, the live wire L is connected to one end of the switch S21, the null wire N is connected to one end of the switch S22, the other end of the switch S21 is connected to the pin No. 1 of the integrated circuit U1 through the temperature-sensitive resistor RT, the other end of the switch S22 is connected to one end of the resistor R1, one end of the capacitor C1 is connected to one end of the capacitor C1, one end of the capacitor C1 is connected to ground, the pin No. 7 of the integrated circuit U1 is connected to ground through the capacitor C2, the pin No. 8 of the integrated circuit U1 is connected to ground through the resistor R2, the pin No. 9 of the integrated circuit U1 is connected to ground, the pin No. 10 is connected to ground, the pin No. 15 of the integrated circuit U1 is connected to the pin No. 16 of the integrated circuit U1, one end of the capacitor C3, the voltage stabilization control module, the other end of the capacitor C3 is connected to ground, and the load module No. 13 of the integrated circuit U1 is connected to the load module.
The switches S21 and S22 are controlled to be closed through the switch control module, the live wire L passes through the temperature-sensitive resistor RT, the zero line N passes through the resistor R1 and the capacitor C1, a loop is formed inside the integrated circuit U1, the temperature-sensitive resistor RT (along with the change of temperature resistance) prevents large current generated in the moment of electrification, and the capacitor C1 and the resistor R1 form an RC network to finish voltage reduction processing. The integrated circuit U1 is ZD832, has integrateed full wave bridge rectifier, control circuit and overvoltage and overtemperature protection circuit, need not plus rectifier, transformer and inductor, saves the volume. Pin 16 of the integrated circuit U1 outputs a dc voltage.
In this embodiment: referring to fig. 2, the voltage regulation control module includes a capacitor C4, a resistor R3, a transistor V1, a transistor V2, a diode D2, a resistor R4, a resistor R5, a potentiometer R6, and a capacitor C5, wherein a collector of the transistor V1 is connected to one end of the capacitor C4, one end of the resistor R3, and an ac-to-dc conversion module, the other end of the capacitor C4 is grounded, the other end of the resistor R3 is connected to a base of the transistor V1 and a collector of the transistor V2, an emitter of the transistor V2 is connected to a cathode of the diode D2 and one end of the resistor R4, an anode of the diode D2 is grounded, an emitter of the transistor V1 is connected to the other end of the resistor R4, one end of the resistor R5, one end of the capacitor C5, and the load working module, the other end of the capacitor C5 is grounded, the other end of the resistor R5 is connected to one end of the potentiometer R6, a sliding end of the potentiometer R6 is connected to a base of the transistor V2, and the other end of the potentiometer R6 is grounded.
After the direct current is input, the triode V1 is conducted to output voltage, and then the triode V2 is conducted to a high level through the potentiometer R6, so that the base voltage of the triode V1 is influenced, and the voltage stabilizing circuit is constructed. When the output voltage of the triode V1 fluctuates, the voltage on the potentiometer R6 changes, so that the conduction degree of the triode V2 is changed, the voltage drop of the triode V2 is further changed, and the voltage on the voltage stabilizing diode D2 is constant, so that the larger the output voltage of the emitting electrode of the triode V1 is, the smaller the base voltage is; the smaller the output voltage of the emitter is, the larger the voltage of the base electrode is, and thus feedback voltage stabilization is established.
In this embodiment: referring to fig. 2, the load working module includes a load X and a resistor R7, one end of the load X is connected to the voltage regulation control module, the other end of the load X is connected to the resistor R7, and the other end of the resistor R7 is connected to pin No. 13 of the integrated circuit U1.
And a resistor R7 is added to complete current limiting, so that the load X is prevented from being damaged.
In this embodiment: referring to fig. 3, the switch control module includes a battery E1, a switch S1, a diode D1, and a relay J2, wherein a positive electrode of the battery E1 is connected to one end of the switch S1, another end of the switch S1 is connected to a negative electrode of the diode D1 and one end of the relay J2, and a positive electrode of the diode D1 is connected to the negative electrode of the battery E1 and another end of the relay J2.
After the switch S1 is pressed, the relay J2 obtains the supply voltage of the battery E1, the relay J2 is electrified to work, the switch S21 and the switch S22 are closed, and the alternating current-direct current module works.
The utility model discloses a theory of operation is: the utility power supply module introduces 220V alternating current and outputs the alternating current to direct current module, the alternating current to direct current module is used for power-on protection and converts the alternating current into direct current and outputs the direct current to the voltage stabilization control module, the voltage stabilization control module stabilizes input voltage and outputs the voltage to the load working module, the load working module controls the load to be electrified to work, and the switch control module controls whether the utility power supply module supplies the alternating current to direct current module.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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 description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. An AC-DC conversion power supply circuit characterized by:
the AC-DC conversion power supply circuit includes:
the commercial power supply module is used for introducing 220V alternating current and outputting the alternating current to the direct current conversion module;
the alternating current-to-direct current module is used for electrifying protection and converting alternating current into direct current to be output to the voltage stabilization control module;
the voltage stabilization control module is used for stabilizing input voltage and outputting the input voltage to the load working module;
the load working module is used for the load to be powered on for working;
the switch control module is used for controlling whether the commercial power supply module supplies alternating current to the alternating current-to-direct current module;
the commercial power supply module is connected with the AC-DC module, the AC-DC module is connected with the voltage stabilization control module, the voltage stabilization control module is connected with the load working module, the load working module is connected with the AC-DC module, and the switch control module is connected with the AC-DC module.
2. The AC-DC conversion power supply circuit according to claim 1, wherein the AC-DC conversion module comprises a switch S21, a switch S22, a temperature-sensitive resistor RT, a capacitor C1, a resistor R1, a capacitor C2, a resistor R2, an integrated circuit U1 and a capacitor C3, the commercial power supply module comprises a live wire L and a null wire N, one end of the switch S21 is connected with the live wire L, one end of the switch S22 is connected with the null wire N, the other end of the switch S21 is connected with a pin No. 1 of the integrated circuit U1 through the temperature-sensitive resistor RT, the other end of the switch S22 is connected with one end of the resistor R1 and one end of the capacitor C1, the other end of the resistor R1 is connected with the other end of the capacitor C1 and a pin No. 2 of the integrated circuit U1, a pin No. 7 of the integrated circuit U1 is grounded through the capacitor C2, a pin No. 8 of the integrated circuit U1 is grounded through the resistor R2, a pin No. 9 and a pin No. 10 of the integrated circuit U1 are grounded, a pin No. 15 of the integrated circuit U1 is connected with a pin No. 16 of the integrated circuit U1, one end of the capacitor C3 and a voltage-stabilizing module are connected with a load module.
3. The AC-DC conversion power supply circuit according to claim 1, wherein the regulator control module includes a capacitor C4, a resistor R3, a transistor V1, a transistor V2, a diode D2, a resistor R4, a resistor R5, a potentiometer R6, and a capacitor C5, a collector of the transistor V1 is connected to one end of the capacitor C4, one end of the resistor R3, and the AC-DC conversion module, another end of the capacitor C4 is grounded, another end of the resistor R3 is connected to a base of the transistor V1 and a collector of the transistor V2, an emitter of the transistor V2 is connected to a cathode of the diode D2 and one end of the resistor R4, an anode of the diode D2 is grounded, an emitter of the transistor V1 is connected to another end of the resistor R4, one end of the resistor R5, and the load operation module, another end of the capacitor C5 is grounded, another end of the resistor R5 is connected to one end of the potentiometer R6, a sliding end of the potentiometer R6 is connected to a base of the transistor V2, and another end of the potentiometer R6 is grounded.
4. The AC-DC conversion power supply circuit according to claim 2, wherein the load operation module comprises a load X and a resistor R7, one end of the load X is connected with the voltage stabilization control module, the other end of the load X is connected with the resistor R7, and the other end of the resistor R7 is connected with pin 13 of the integrated circuit U1.
5. An AC-DC conversion power supply circuit according to claim 1, characterized in that the switch control module comprises a battery E1, a switch S1, a diode D1 and a relay J2, wherein the anode of the battery E1 is connected with one end of the switch S1, the other end of the switch S1 is connected with the cathode of the diode D1 and one end of the relay J2, and the anode of the diode D1 is connected with the cathode of the battery E1 and the other end of the relay J2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221870605.2U CN218449891U (en) | 2022-07-11 | 2022-07-11 | AC-DC conversion power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221870605.2U CN218449891U (en) | 2022-07-11 | 2022-07-11 | AC-DC conversion power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218449891U true CN218449891U (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221870605.2U Active CN218449891U (en) | 2022-07-11 | 2022-07-11 | AC-DC conversion power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218449891U (en) |
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2022
- 2022-07-11 CN CN202221870605.2U patent/CN218449891U/en active Active
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