CN218301247U - Inverter power supply circuit - Google Patents
Inverter power supply circuit Download PDFInfo
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- CN218301247U CN218301247U CN202221790038.XU CN202221790038U CN218301247U CN 218301247 U CN218301247 U CN 218301247U CN 202221790038 U CN202221790038 U CN 202221790038U CN 218301247 U CN218301247 U CN 218301247U
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Abstract
The utility model discloses an inverter circuit, this inverter circuit includes: the direct current supply module is used for supplying direct current to the switch indication module and the alternating current generation module; or directly outputting direct current to supply to a direct current appliance; the switch indicating module is used for controlling the circuit switch and indicating whether the PWM generating module is electrified to work or not by emitting light; the PWM generation module is used for acquiring a square wave signal with the duty ratio of 50% and driving the alternating current generation module to work; the alternating current generating module is used for generating alternating current through a square wave signal with the duty ratio of 50%; the output module is used for amplifying the alternating current and outputting the alternating current to the alternating current electrical appliance; the utility model discloses a generate 50% PWM signal drive of duty cycle and exchange and generate the module, and then acquire suitable alternating current, circuit structure is simple, and only the transformer is bulky, and other components and parts equipment are little, and it is small to account for the ground.
Description
Technical Field
The utility model relates to a voltage supply module specifically is an inverter circuit.
Background
The power inverter mainly completes inversion from direct current to alternating current. The switch can be set to be a direct current main use or an alternating current main use according to application occasions, and the static switch controls the switch. The power inverter has wide application, can be used for various vehicles, and has irreplaceable function in the field of solar energy and wind energy power generation.
The inverter power supply on the current market is complex in structure, large in size and not convenient enough, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an inverter circuit to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above purpose, the utility model provides a following technical scheme:
an inverter power circuit comprising:
the direct current supply module is used for supplying direct current to the switch indication module and the alternating current generation module; or directly outputting direct current to supply to a direct current appliance;
the switch indicating module is used for controlling the circuit switch and indicating whether the PWM generating module is electrified to work or not by emitting light;
the PWM generating module is used for acquiring a square wave signal with the duty ratio of 50% and driving the alternating current generating module to work;
the alternating current generation module is used for generating alternating current through a square wave signal with the duty ratio of 50%;
the output module is used for amplifying the alternating current and outputting the alternating current to the alternating current electrical appliance;
the direct current supply module is connected with the switch indication module and the alternating current generation module, the switch indication module is connected with the PWM generation module, the PWM generation module is connected with the alternating current generation module, and the alternating current generation module is connected with the output module.
As a further aspect of the present invention: the direct current supply module comprises a direct current power supply VCC and a resistor R1, the direct current power supply VCC is connected with one end of the resistor R1, and the other end of the resistor R1 is connected with the switch indication module and the alternating current generation module.
As a further aspect of the present invention: the switch indicating module comprises a triode V1, a switch S1, a resistor R2 and a diode D1, wherein an emitting electrode of the triode V1 is connected with a direct current supply module, a base electrode of the triode V1 is connected with one end of the switch S1, the other end of the switch S1 is grounded, a collector electrode of the triode V1 is connected with one end of the resistor R2 and the PWM generating module, the other end of the resistor R2 is connected with the anode of the diode D1, and the cathode of the diode D1 is grounded.
As a further aspect of the present invention: the PWM generation module comprises an amplifier U1, a diode D2, a diode D3, a resistor R3, a capacitor C1, a resistor R4 and a potentiometer RP1, wherein the in-phase end of the amplifier U1 is connected with a switch indication module, the inverting end of the amplifier U1 is connected with one end of the capacitor C1, one end of the resistor R3 and the anode of the diode D3, the other end of the capacitor C1 is grounded, the other end of the resistor R3 is connected with the cathode of the diode D2, the cathode of the diode D3 is connected with the anode of the diode D2, the output end of the amplifier U1, one end of the resistor R4 and an alternating current generation module, the other end of the resistor R4 is connected with one end of the potentiometer RP1, and the other end of the potentiometer RP1 is grounded.
As a further aspect of the present invention: the alternating current generation module comprises a diode D4, a diode D5, a triode V2, a triode V3, a triode V4 and a triode V5, the anode of the diode D4 is connected with the cathode of the diode D5, the PWM generation module, the cathode of the diode D4 is connected with the base of the triode V2, the collector of the triode V2 is connected with the collector of the triode V3, the first end of the transformer W, the emitter of the triode V2 is connected with the base of the triode V3, the emitter of the triode V3 is grounded, the anode of the diode D5 is connected with the base of the triode V4, the emitter of the triode V4 is connected with the collector of the triode V5, the third end of the transformer W, the base of the triode V5 is connected with the collector of the triode V4, the emitter of the triode V5 is grounded, and the second end of the transformer W is connected with the direct current supply module.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a generate 50% PWM signal drive of duty cycle and exchange the generation module, and then acquire suitable alternating current, circuit structure is simple, and only the transformer is bulky, and other components and parts equipment are little, and the occupation of land is small.
Drawings
Fig. 1 is a schematic diagram of an inverter power circuit.
Fig. 2 is a circuit diagram of an inverter power circuit.
Fig. 3 is a pin diagram of amplifier LM 324.
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 inverter circuit includes:
the direct current supply module is used for supplying direct current to the switch indication module and the alternating current generation module; or directly outputting direct current to supply to a direct current appliance;
the switch indicating module is used for controlling the circuit switch and indicating whether the PWM generating module is electrified to work or not by emitting light;
the PWM generating module is used for acquiring a square wave signal with the duty ratio of 50% and driving the alternating current generating module to work;
the alternating current generation module is used for generating alternating current through a square wave signal with the duty ratio of 50%;
the output module is used for amplifying the alternating current and outputting the alternating current to the alternating current electrical appliance;
the direct current supply module is connected with the switch indication module and the alternating current generation module, the switch indication module is connected with the PWM generation module, the PWM generation module is connected with the alternating current generation module, and the alternating current generation module is connected with the output module.
In this embodiment: referring to fig. 2, the dc supply module includes a dc power VCC and a resistor R1, the dc power VCC is connected to one end of the resistor R1, and the other end of the resistor R1 is connected to the switch indication module and the ac generation module.
Direct current power VCC supplies power for the switch indication module and the alternating current generation module through the resistor R1, the resistor R1 is used for limiting current, and the direct current power VCC can also work for a direct current load directly.
In this embodiment: referring to fig. 2, the switch indication module includes a transistor V1, a switch S1, a resistor R2, and a diode D1, an emitter of the transistor V1 is connected to the dc supply module, a base of the transistor V1 is connected to one end of the switch S1, the other end of the switch S1 is grounded, a collector of the transistor V1 is connected to one end of the resistor R2 and the PWM generation module, the other end of the resistor R2 is connected to an anode of the diode D1, and a cathode of the diode D1 is grounded.
When the switch S1 pops up, the base of the triode V1 is in idle connection, the triode V1 is not conducted, when the switch S1 is closed, the base of the triode V1 is grounded and is in a low level, the PNP triode V1 is conducted, and then the direct current supply module supplies power for the PWM generation module through the triode V1, wherein the diode D1 is a light emitting diode and indicates whether the switch S1 is closed or not.
In this embodiment: referring to fig. 2 and 3, the pwm generation module includes an amplifier U1, a diode D2, a diode D3, a resistor R3, a capacitor C1, a resistor R4, and a potentiometer RP1, wherein the non-inverting terminal of the amplifier U1 is connected to the switch indication module, the inverting terminal of the amplifier U1 is connected to one terminal of the capacitor C1, one terminal of the resistor R3, and the anode of the diode D3, the other terminal of the capacitor C1 is grounded, the other terminal of the resistor R3 is connected to the cathode of the diode D2, the cathode of the diode D3 is connected to the anode of the diode D2, the output terminal of the amplifier U1, one terminal of the resistor R4, and the ac generation module, the other terminal of the resistor R4 is connected to one terminal of the potentiometer RP1, and the other terminal of the potentiometer RP1 is grounded.
Amplifier U1's homophase end input voltage, amplifier homophase end voltage is higher than the inverting terminal voltage, amplifier U1's output high level, through diode D2, resistance R3 charges for electric capacity C1, electric capacity C1 continuously charges, and then make amplifier U1's inverting terminal voltage be higher than the homophase end voltage, amplifier U1's output low level, at this moment electric capacity C1 passes through diode D3, resistance R4, potentiometre RP1 discharges, resistance through adjusting potentiometre RP1, make electric capacity C1's charge-discharge time the same, make the duty cycle of output PWM signal be 50% with this. The amplifier U1 is in a model LM324, and four amplifiers are arranged in the LM 324.
In this embodiment: referring to fig. 2, the ac generating module includes a diode D4, a diode D5, a transistor V2, a transistor V3, a transistor V4, and a transistor V5, wherein an anode of the diode D4 is connected to a cathode of the diode D5, and the PWM generating module, a cathode of the diode D4 is connected to a base of the transistor V2, a collector of the transistor V2 is connected to a collector of the transistor V3 and a first end of the transformer W, an emitter of the transistor V2 is connected to the base of the transistor V3, an emitter of the transistor V3 is grounded, an anode of the diode D5 is connected to the base of the transistor V4, an emitter of the transistor V4 is connected to the collector of the transistor V5 and a third end of the transformer W, a collector of the transistor V4 is connected to the base of the transistor V5, an emitter of the transistor V5 is grounded, and a second end of the transformer W is connected to the dc supplying module.
When the input PWM signal is at a high level, the NPN triode V2 is conducted, the triode V3 is conducted, the direct current supply module is grounded through the second end and the first end of the transformer W and the triode V3, and the direction of current on the transformer W is from bottom to top; when the input PWM signal is at a low level, the PNP triode V4 is conducted, the triode V5 is conducted, the direct current supply module is grounded through the second end and the third end of the transformer W and the triode V5, and the direction of current on the transformer W is from top to bottom in a reciprocating mode, so that alternating current is formed on the input side of the transformer W.
The utility model discloses a theory of operation is: the direct current supply module supplies direct current to the switch indication module and the alternating current generation module; or direct current is directly output to supply to a direct current appliance, the switch indicating module controls the circuit to be switched on and off, the light emitting module indicates whether the PWM generating module is powered on to work or not, the PWM generating module acquires a square wave signal with the duty ratio of 50% and drives the alternating current generating module to work, the alternating current generating module generates alternating current through the square wave signal with the duty ratio of 50%, and the output module amplifies the alternating current and outputs the alternating current to the alternating current appliance.
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 inverter power circuit characterized by:
the inverter power supply circuit includes:
the direct current supply module is used for supplying direct current to the switch indication module and the alternating current generation module; or directly outputting direct current to supply to a direct current appliance;
the switch indicating module is used for controlling the circuit switch and gives out light to indicate whether the PWM generating module is electrified to work or not;
the PWM generating module is used for acquiring a square wave signal with the duty ratio of 50% and driving the alternating current generating module to work;
the alternating current generating module is used for generating alternating current through a square wave signal with the duty ratio of 50%;
the output module is used for amplifying the alternating current and outputting the alternating current to an alternating current appliance;
the direct current supply module is connected with the switch indication module and the alternating current generation module, the switch indication module is connected with the PWM generation module, the PWM generation module is connected with the alternating current generation module, and the alternating current generation module is connected with the output module.
2. The inverter power supply circuit according to claim 1, wherein the dc supply module comprises a dc power VCC and a resistor R1, the dc power VCC is connected to one end of the resistor R1, and the other end of the resistor R1 is connected to the switch indication module and the ac generation module.
3. The inverter power circuit of claim 1, wherein the switch indication module comprises a transistor V1, a switch S1, a resistor R2, and a diode D1, an emitter of the transistor V1 is connected to the dc supply module, a base of the transistor V1 is connected to one end of the switch S1, another end of the switch S1 is grounded, a collector of the transistor V1 is connected to one end of the resistor R2 and the PWM generation module, another end of the resistor R2 is connected to an anode of the diode D1, and a cathode of the diode D1 is grounded.
4. The inverter power supply circuit according to claim 1, wherein the PWM generation module includes an amplifier U1, a diode D2, a diode D3, a resistor R3, a capacitor C1, a resistor R4, and a potentiometer RP1, the inverting terminal of the amplifier U1 is connected to the switch indication module, the inverting terminal of the amplifier U1 is connected to one terminal of the capacitor C1, one terminal of the resistor R3, and the anode of the diode D3, the other terminal of the capacitor C1 is grounded, the other terminal of the resistor R3 is connected to the cathode of the diode D2, the cathode of the diode D3 is connected to the anode of the diode D2, the output terminal of the amplifier U1, one terminal of the resistor R4, and the ac generation module, the other terminal of the resistor R4 is connected to one terminal of the potentiometer RP1, and the other terminal of the potentiometer RP1 is grounded.
5. The inverter circuit according to claim 4, wherein the ac generating module comprises a diode D4, a diode D5, a transistor V2, a transistor V3, a transistor V4, and a transistor V5, wherein an anode of the diode D4 is connected to a cathode of the diode D5, and the PWM generating module, a cathode of the diode D4 is connected to a base of the transistor V2, a collector of the transistor V2 is connected to a collector of the transistor V3 and a first end of the transformer W, an emitter of the transistor V2 is connected to a base of the transistor V3, an emitter of the transistor V3 is grounded, an anode of the diode D5 is connected to a base of the transistor V4, an emitter of the transistor V4 is connected to a collector of the transistor V5 and a third end of the transformer W, a collector of the transistor V4 is connected to a base of the transistor V5, an emitter of the transistor V5 is grounded, and a second end of the transformer W is connected to the dc supplying module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221790038.XU CN218301247U (en) | 2022-07-12 | 2022-07-12 | Inverter power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221790038.XU CN218301247U (en) | 2022-07-12 | 2022-07-12 | Inverter power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218301247U true CN218301247U (en) | 2023-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221790038.XU Active CN218301247U (en) | 2022-07-12 | 2022-07-12 | Inverter power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218301247U (en) |
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2022
- 2022-07-12 CN CN202221790038.XU patent/CN218301247U/en active Active
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