CN216216585U - DC-AC inverter - Google Patents

DC-AC inverter Download PDF

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Publication number
CN216216585U
CN216216585U CN202122473443.0U CN202122473443U CN216216585U CN 216216585 U CN216216585 U CN 216216585U CN 202122473443 U CN202122473443 U CN 202122473443U CN 216216585 U CN216216585 U CN 216216585U
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China
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module
resistor
direct current
alternating current
power supply
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CN202122473443.0U
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Chinese (zh)
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吴国庆
刘斌
朱锋
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Shanghai Hanglian Electronic Technology Co ltd
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Shanghai Hanglian Electronic Technology Co ltd
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Abstract

The utility model discloses a DC-AC inverter power supply, which relates to the field of voltage conversion, and comprises: the direct current power supply module is used for supplying direct current; the square wave generating module is used for converting the direct current into a square wave signal; the amplifying module is used for amplifying the square wave signal and further driving the direct current-to-alternating current module; the direct current-to-alternating current module is used for converting direct current into alternating current; the alternating current power supply module is used for supplying alternating current to enable the load to work; the DC power supply module is connected with the square wave generation module, the amplification module and the AC-to-DC module, the square wave generation module is connected with the amplification module, the amplification module is connected with the DC-to-AC module, and the DC-to-AC module is connected with the AC power supply module, compared with the prior art, the DC-to-DC power supply device has the beneficial effects that: the utility model has small volume, small occupied space, simple structure, good practicability and suitability for popularization, and is convenient to store while meeting the requirement of supplying alternating current.

Description

DC-AC inverter
Technical Field
The utility model relates to the field of voltage conversion, in particular to a DC-AC inverter power supply.
Background
Power inverters are popular in domestic and foreign markets. Because of the high popularization rate of the automobile, the inverter can be connected with the automobile storage battery to drive the electric appliance and the electric tool to work when the automobile works in occasions without commercial power or travels outside. With the rapid development of society, private people in domestic markets buy more and more cars, so that the life is more convenient as a direct current to alternating current power converter used in automobile movement.
The inverter power supply on the market at present usually adopts a timer or an amplifier to complete the acquisition of the square wave signal, and the amplifier and the timer are usually large in size, so that the occupied space is large and improvement is needed.
Disclosure of Invention
The present invention is directed to a DC-AC inverter power supply to solve the above problems.
In order to achieve the purpose, the utility model provides the following technical scheme:
a DC-AC inverter power supply comprising:
the direct current power supply module is used for supplying direct current;
the square wave generating module is used for converting the direct current into a square wave signal;
the amplifying module is used for amplifying the square wave signal and further driving the direct current-to-alternating current module;
the direct current-to-alternating current module is used for converting direct current into alternating current;
the alternating current power supply module is used for supplying alternating current to enable the load to work;
the direct current power supply module is connected with the square wave generation module, the amplification module and the alternating current-to-direct current module, the square wave generation module is connected with the amplification module, the amplification module is connected with the direct current-to-alternating current module, and the direct current-to-alternating current module is connected with the alternating current power supply module.
As a still further scheme of the utility model: the direct current power supply module comprises a battery E1, a switch S1 and a diode D1, wherein the negative electrode of the battery E1 is grounded, the positive electrode of the battery E1 is connected with the switch S1, and the other end of the switch S1 is connected with the positive electrode of the diode D1, the square wave generation module, the amplification module and the alternating current-to-direct current module.
As a still further scheme of the utility model: the square wave generating module comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2, a triode V1, a triode V2, a resistor R5 and a resistor R8, wherein one end of the resistor R1 is connected with the other end of the switch S1, the resistor R2, the resistor R3 and the resistor R4, the other end of the resistor R1 is connected with the collector of the triode V1 and the capacitor C2, the other end of the resistor R2 is connected with the base of the triode V1 and the capacitor C1, the other end of the resistor R3 is connected with the other end of the capacitor C2 and the base of the triode V2, the other end of the resistor R4 is connected with the collector of the triode V2 and the other end of the capacitor C1, the emitter of the triode V2 is connected with the resistor R8, the other end of the resistor R8 is grounded, the emitter of the triode V1 is connected with the resistor R5, and the other end of the resistor R5 is grounded.
As a still further scheme of the utility model: the amplifying module comprises a first amplifying circuit, a second amplifying circuit, a resistor R6 and a resistor R7, wherein one end of the first amplifying circuit is connected with an emitting electrode of the triode V1, the other end of the first amplifying circuit is connected with the resistor R7, the other end of the resistor R7 is connected with the direct current-to-alternating current module, one end of the second amplifying circuit is connected with an emitting electrode of the triode V2, the other end of the second amplifying circuit is connected with the resistor R6, and the other end of the resistor R6 is connected with the direct current-to-alternating current module.
As a still further scheme of the utility model: the direct-current-to-alternating-current module comprises a MOS tube V3, a MOS tube V4 and a transformer W, wherein the G pole of the MOS tube V3 is connected with the other end of the resistor R6, the G pole of the MOS tube V4 is connected with the other end of the resistor R7, the second end of the transformer W is connected with the other end of the switch S1, the first end of the transformer W is connected with the D pole of the MOS tube V3, the third end of the transformer W is connected with the D pole of the MOS tube V4, the S pole of the MOS tube V4 is grounded, and the S pole of the MOS tube V3 is grounded.
Compared with the prior art, the utility model has the beneficial effects that: the utility model has small volume, small occupied space, simple structure, good practicability and suitability for popularization, and is convenient to store while meeting the requirement of supplying alternating current.
Drawings
Fig. 1 is a schematic diagram of a DC-AC inverter power supply.
Fig. 2 is a circuit diagram of a DC-AC inverter power supply.
Fig. 3 is a circuit diagram of the first amplifier circuit and the second amplifier circuit.
Detailed Description
The technical solutions 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 a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1, a DC-AC inverter includes:
the direct current power supply module is used for supplying direct current;
the square wave generating module is used for converting the direct current into a square wave signal;
the amplifying module is used for amplifying the square wave signal and further driving the direct current-to-alternating current module;
the direct current-to-alternating current module is used for converting direct current into alternating current;
the alternating current power supply module is used for supplying alternating current to enable the load to work;
the direct current power supply module is connected with the square wave generation module, the amplification module and the alternating current-to-direct current module, the square wave generation module is connected with the amplification module, the amplification module is connected with the direct current-to-alternating current module, and the direct current-to-alternating current module is connected with the alternating current power supply module.
In this embodiment: referring to fig. 2, the dc power supply module includes a battery E1, a switch S1, and a diode D1, a negative electrode of the battery E1 is grounded, a positive electrode of the battery E1 is connected to the switch S1, and another end of the switch S1 is connected to a positive electrode of the diode D1, the square wave generating module, the amplifying module, and the ac-to-dc conversion module.
The battery E1 supplies direct current, after the switch S1 is closed, the battery E1 supplies power to the circuit, and the diode D1 is a light-emitting diode and is used for indicating whether the battery E1 is in a power supply state currently.
In this embodiment: referring to fig. 2, the square wave generating module includes a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2, a transistor V1, a transistor V2, a resistor R5, and a resistor R8, one end of the resistor R1 is connected to the other end of the switch S1, the resistor R2, the resistor R3, and the resistor R4, the other end of the resistor R1 is connected to the collector of the transistor V1 and the capacitor C2, the other end of the resistor R2 is connected to the base of the transistor V1 and the capacitor C1, the other end of the resistor R3 is connected to the other end of the capacitor C2 and the base of the transistor V2, the other end of the resistor R4 is connected to the collector of the transistor V2 and the other end of the capacitor C1, the emitter of the transistor V2 is connected to the resistor R8, the other end of the resistor R8 is grounded, the emitter of the transistor V1 is connected to the resistor R5, and the other end of the resistor R5 is grounded.
After the switch S1 is closed, the capacitor C1 and the capacitor C2 are charged through the resistor R2 and the resistor R3, respectively, and after the voltage of the capacitor C1 reaches the condition that the transistor V1 is turned on, the voltage of the capacitor C1 is output to the circuit ground point through the transistor V1, and when the voltage of the capacitor C1 is not enough to turn on the transistor V1, the capacitor C1 is charged again, in such a reciprocating manner, so that the transistor V1 outputs a square wave signal to the first amplifying circuit, and similarly, the square wave signal is output to the second amplifying circuit through the matching of the capacitor C2 and the transistor V2.
In this embodiment: referring to fig. 2 and 3, the amplifying module includes a first amplifying circuit, a second amplifying circuit, a resistor R6, and a resistor R7, one end of the first amplifying circuit is connected to an emitter of the transistor V1, the other end of the first amplifying circuit is connected to the resistor R7, the other end of the resistor R7 is connected to the dc-to-ac module, one end of the second amplifying circuit is connected to an emitter of the transistor V2, the other end of the second amplifying circuit is connected to the resistor R6, and the other end of the resistor R6 is connected to the dc-to-ac module.
The first amplifying circuit and the second amplifying circuit have the same structure, and the amplification factor of the output voltage is (RX 1+ RX 2)/RX 2 of the input voltage, so that the voltage output to the MOS tube V3 and the MOS tube V4 is ensured to be larger, and the MOS tube V3 and the MOS tube V4 are conducted when the output square wave signal is at a high level.
In this embodiment: referring to fig. 2, the dc-ac module includes a MOS transistor V3, a MOS transistor V4, and a transformer W, wherein a G-pole of the MOS transistor V3 is connected to the other end of the resistor R6, a G-pole of the MOS transistor V4 is connected to the other end of the resistor R7, a second end of the transformer W is connected to the other end of the switch S1, a first end of the transformer W is connected to a D-pole of the MOS transistor V3, a third end of the transformer W is connected to the D-pole of the MOS transistor V4, an S-pole of the MOS transistor V4 is grounded, and an S-pole of the MOS transistor V3 is grounded.
The MOS tube V3 and the MOS tube V4 are NMOS tubes, the G-pole voltage of the NMOS tube is conducted when the voltage is high, and when the MOS tube V3 is conducted, current sequentially passes through the second end of the transformer W, the first end of the transformer W, the MOS tube V3 and a circuit grounding point; when the MOS tube V4 is conducted, current sequentially passes through the second end of the transformer W, the third end of the transformer W, the MOS tube V4 and the circuit grounding point; when the MOS transistor V3 and the MOS transistor V4 are respectively turned on, the current flow direction on the transformer W is different, so that alternating current is generated, amplified by the transformer W, and then output to the load X.
The working principle of the utility model is as follows: the direct current power supply module supplies direct current to the square wave generation module, the amplification module and the direct current-to-alternating current module, the square wave generation module converts the direct current into square wave signals, the amplification module amplifies the square wave signals output by the square wave generation module and then drives the direct current to alternating current module to convert the direct current into alternating current and amplify the alternating current, and the alternating current power supply module supplies the amplified alternating current to a load to work.
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 invention may be embodied in other specific forms without departing from the spirit or essential attributes 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 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. A DC-AC inverter power supply characterized in that:
the DC-AC inverter power supply includes:
the direct current power supply module is used for supplying direct current;
the square wave generating module is used for converting the direct current into a square wave signal;
the amplifying module is used for amplifying the square wave signal and further driving the direct current-to-alternating current module;
the direct current-to-alternating current module is used for converting direct current into alternating current;
the alternating current power supply module is used for supplying alternating current to enable the load to work;
the direct current power supply module is connected with the square wave generation module, the amplification module and the alternating current-to-direct current module, the square wave generation module is connected with the amplification module, the amplification module is connected with the direct current-to-alternating current module, and the direct current-to-alternating current module is connected with the alternating current power supply module.
2. The DC-AC inverter according to claim 1, wherein the DC power supply module comprises a battery E1, a switch S1 and a diode D1, the negative pole of the battery E1 is grounded, the positive pole of the battery E1 is connected with a switch S1, and the other end of the switch S1 is connected with the positive pole of the diode D1, the square wave generation module, the amplification module and the AC-DC conversion module.
3. The DC-AC inverter according to claim 1, wherein the square wave generating module includes a resistor R1, a capacitor C1, a transistor V1, a resistor R1, and a resistor R1, one end of the resistor R1 is connected to the other end of the switch S1, the resistor R1, and the resistor R1, the other end of the resistor R1 is connected to a collector of the transistor V1 and the capacitor C1, the other end of the resistor R1 is connected to a base of the transistor C1 and the other end of the capacitor V1, the other end of the resistor R1 is connected to the collector of the transistor V1 and the other end of the capacitor C1, the emitter of the transistor V1 is connected to the resistor R1, the other end of the resistor R1 is grounded, the emitter of the transistor V1 is connected to the base of the resistor R1, and the other end of the resistor R1 is grounded.
4. The DC-AC inverter according to claim 3, wherein the amplifying module comprises a first amplifying circuit, a second amplifying circuit, a resistor R6 and a resistor R7, one end of the first amplifying circuit is connected with an emitter of a triode V1, the other end of the first amplifying circuit is connected with a resistor R7, the other end of the resistor R7 is connected with the DC-AC converting module, one end of the second amplifying circuit is connected with an emitter of a triode V2, the other end of the second amplifying circuit is connected with a resistor R6, and the other end of the resistor R6 is connected with the DC-AC converting module.
5. The DC-AC inverter according to claim 4, wherein the DC-AC inverter module comprises a MOS transistor V3, a MOS transistor V4 and a transformer W, the G pole of the MOS transistor V3 is connected to the other end of the resistor R6, the G pole of the MOS transistor V4 is connected to the other end of the resistor R7, the second end of the transformer W is connected to the other end of the switch S1, the first end of the transformer W is connected to the D pole of the MOS transistor V3, the third end of the transformer W is connected to the D pole of the MOS transistor V4, the S pole of the MOS transistor V4 is grounded, and the S pole of the MOS transistor V3 is grounded.
CN202122473443.0U 2021-10-14 2021-10-14 DC-AC inverter Active CN216216585U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122473443.0U CN216216585U (en) 2021-10-14 2021-10-14 DC-AC inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122473443.0U CN216216585U (en) 2021-10-14 2021-10-14 DC-AC inverter

Publications (1)

Publication Number Publication Date
CN216216585U true CN216216585U (en) 2022-04-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122473443.0U Active CN216216585U (en) 2021-10-14 2021-10-14 DC-AC inverter

Country Status (1)

Country Link
CN (1) CN216216585U (en)

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