CN216084729U

CN216084729U - Linear transformer standby circuit of voltage conversion socket

Info

Publication number: CN216084729U
Application number: CN202121236819.XU
Authority: CN
Inventors: 顾先兵
Original assignee: Zhejiang Tenuoqi Electronics Co ltd
Current assignee: Zhejiang Tenuoqi Electronics Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2022-03-18
Anticipated expiration: 2031-06-03

Abstract

The utility model relates to the field of power sockets and discloses a linear transformer standby circuit of a voltage conversion socket, which comprises a conversion socket circuit, a relay, a driving circuit, a controller, a main transformer T1, a standby transformer T2 and an AC/DC conversion circuit, wherein the output end of the conversion socket circuit is respectively connected with one end of the relay and the primary side of the standby transformer T2, the other end of the relay is connected with the primary side of the main transformer T1, the secondary side of the standby transformer T2 is connected with the AC/DC conversion circuit, the AC/DC conversion circuit is a driving circuit and a controller working power supply, the input end of the driving circuit is connected with the controller, and the output end of the driving circuit is connected with the excitation end of the relay. The circuit has the advantages of simple circuit, low power consumption and the like.

Description

Linear transformer standby circuit of voltage conversion socket

Technical Field

The utility model relates to the field of power sockets, in particular to a linear transformer standby circuit of a voltage conversion socket.

Background

With the development of science and technology, electronic products are more and more, and most of electronic products have power supplies, which are devices for supplying power to electronic equipment, such as common storage batteries (direct current power supplies), alternating current power supplies and the like. The voltage of the AC power supply is mainly classified into two types, AC230V and AC115V, according to design standards of different regions and countries.

In order to adapt to the change of voltage, a conversion socket is arranged in the prior art to convert and output two voltages so as to adapt to different voltages; however, the existing conversion socket has no standby function and high energy consumption.

Disclosure of Invention

The utility model aims to provide a linear transformer standby circuit of a voltage conversion socket.

In order to realize the purpose of the utility model, the technical proposal adopted by the utility model is as follows: a linear transformer standby circuit of a voltage conversion socket comprises a conversion socket circuit, a relay, a driving circuit, a controller, a main transformer T1, a standby transformer T2 and an AC/DC conversion circuit, wherein the output end of the conversion socket circuit is respectively connected with one end of the relay and the primary side of the standby transformer T2, the other end of the relay is connected with the primary side of the main transformer T1, the secondary side of the standby transformer T2 is connected with the AC/DC conversion circuit, the AC/DC conversion circuit is a driving circuit and a controller working power supply, the input end of the driving circuit is connected with the controller, and the output end of the driving circuit is connected with the excitation end of the relay.

Preferably, the AC/DC conversion circuit includes a rectifying circuit and a filter circuit, an input end of the rectifying circuit is connected to the secondary side of the standby transformer T2, an output end of the rectifying circuit is connected to an input end of the filter circuit, and an output end of the filter circuit is connected to the driving circuit and a power supply end of the controller.

Preferably, the rectifier circuit comprises a fuse F1, a diode D2, a diode D3, a diode D4, a diode D5, a capacitor C2 and a capacitor C3;

one end of the secondary side of the standby transformer T2 is connected with one pin of a fuse F1, and two pins of the fuse F1 are respectively connected with one pin of a capacitor C2, the anode of a diode D2 and the cathode of a diode D4;

the other end of the secondary side of the standby transformer T2 is connected with one pin of a capacitor C3, the anode of a diode D3 and the cathode of a diode D5; the cathode of the diode D3 is respectively connected with the cathode of the diode D2 and the two pins of the capacitor C2, and the cathode of the diode D3 is connected with the filter circuit;

the two pins of the capacitor C3, the anode of the diode D5 and the anode of the diode D4 are all grounded.

Preferably, the filter circuit includes a capacitor C6, a capacitor C7, and a capacitor C5, wherein one pin of the capacitor C6, one pin of the capacitor C7, and an anode of the capacitor C5 are all connected to a cathode of a diode D3, a common end of the one pin of the capacitor C6, the one pin of the capacitor C7, and an anode of the capacitor C5 is an output end of the filter circuit, and the two pins of the capacitor C6, the two pins of the capacitor C7, and the cathode of the capacitor C5 are all grounded.

Preferably, the driving circuit comprises a transistor Q1, a transistor Q2, a diode D1, a capacitor C1, a resistor R1, a resistor R2, a resistor R3, and a resistor R4;

an emitting electrode of the triode Q2 is connected with one pin of the resistor R1, a common end of the triode Q2 and the resistor R1 is a power supply end of the driving circuit, a base electrode of the triode Q2 is respectively connected with two pins of the resistor R1 and one pin of the resistor R2, and a collector electrode of the triode Q2 is respectively connected with a negative electrode of a diode D1 and one pin of a relay excitation end;

a collector of the triode Q1 is connected with two pins of the resistor R2, a base of the triode Q1 is respectively connected with one pin of the capacitor C1, one pin of the resistor R3 and one pin of the resistor R4, and two pins of the resistor R3 are connected with the controller;

two pins of the resistor R4, two pins of the capacitor C1, an emitter of the triode Q1, an anode of the diode D1 and two pins of a relay excitation end are all grounded.

Preferably, the relay is of the double pole double throw type.

Preferably, the controller is an STC12 single-chip microcomputer.

The beneficial effects of the utility model are concentrated and expressed as follows:

1. the standby circuit can be connected with two different standard voltages through the conversion socket circuit, the conversion socket circuit is switched, the conversion socket circuit divides the input voltage into two paths, one path is directly connected with the standby transformer T2, the other path is connected with the main transformer T1 through the relay, the standby transformer T2 reduces the voltage, then the AC/DC conversion circuit converts the AC into the DC and supplies the DC to the driving circuit and the controller, and the controller can control the on-off suction of the relay, so that the conversion socket circuit is connected with the main transformer T1, the standby function is realized, and the energy consumption is reduced.

2. The standby circuit mainly comprises a relay, a driving circuit, a controller and the like, and is simple in circuit and low in power consumption, and the standby power consumption is less than 0.5W.

Drawings

FIG. 1 is an overall circuit block diagram of the present invention;

FIG. 2 is a circuit schematic of the present invention;

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, a linear transformer standby circuit of a voltage conversion socket includes a conversion socket circuit, a relay, a driving circuit, a controller, a main transformer T1, a standby transformer T2 and an AC/DC conversion circuit, in this embodiment, the relay is of a double-pole double-throw type, and the conversion socket circuit includes a dial switch, the primary sides of the main transformer T1 and the standby transformer T2 both have three connectors, voltages of two different standards, AC115V and AC230V, are switched to different connectors through the dial switch, the number of turns of the primary side coil is changed, and the output inconvenience of the secondary sides of the main transformer T1 and the standby transformer T2 is ensured;

the output end of the conversion socket circuit is respectively connected with one end of a relay and the primary side of a standby transformer T2, the other end of the relay is connected with the primary side of a main transformer T1, the secondary side of the standby transformer T2 is connected with an AC/DC conversion circuit, the AC/DC conversion circuit is a driving circuit and a controller working power supply, the input end of the driving circuit is connected with the controller, and the output end of the driving circuit is connected with the excitation end of the relay.

The switching socket circuit further comprises a socket PLUG, a button switch SW1 and a capacitor C4, wherein the positive pole of the socket PLUG is respectively connected with one pin of the button switch SW1 and one pin of the capacitor C4, the two pins of the button switch SW1 are respectively connected with the two pins of the capacitor C4 and the input end of a dial switch, the dial switch is provided with two output ends, one of the two output ends is a 230V output end, the other output end is a 115V output end, the 230V output end and the 115V output end are respectively connected with two switches corresponding to a relay, the two switches corresponding to the relay are further connected with two corresponding connectors of a main transformer T1, and the 230V output end and the 115V output end are simultaneously and respectively connected with two different connectors of a standby transformer T2.

Further, the AC/DC conversion circuit includes a rectifying circuit and a filter circuit, an input end of the rectifying circuit is connected to a secondary side of the standby transformer T2, an output end of the rectifying circuit is connected to an input end of the filter circuit, an output end of the filter circuit is connected to the driving circuit and a power supply end of the controller, and under the action of the standby transformer T2 and the rectifying circuit, the controller can step down and rectify AC115V or AC230 into DC5V to supply power to the controller and the driving circuit, and in this embodiment, the controller preferably uses a single chip microcomputer of STC12 series, and may also use single chip microcomputers of other types.

As for the rectifier circuit and the filter circuit, specifically, the rectifier circuit includes a fuse F1, a diode D2, a diode D3, a diode D4, a diode D5, a capacitor C2, a capacitor C3; wherein, the fuse F1 plays a role in protecting the circuit;

the other end of the secondary side of the standby transformer T2 is connected with one pin of a capacitor C3, the anode of a diode D3 and the cathode of a diode D5; the cathode of the diode D3 is respectively connected with the cathode of the diode D2 and the two pins of the capacitor C2, and the cathode of the diode D3 is connected with the filter circuit; the two pins of the capacitor C3, the anode of the diode D5 and the anode of the diode D4 are all grounded.

The filter circuit comprises a capacitor C6, a capacitor C7 and a capacitor C5, wherein one pin of the capacitor C6, one pin of the capacitor C7 and the anode of the capacitor C5 are all connected with the cathode of a diode D3 tube, the common ends of the one pin of the capacitor C6, the one pin of the capacitor C7 and the anode of the capacitor C5 are output ends of the filter circuit, and the two pins of the capacitor C6, the two pins of the capacitor C7 and the cathode of the capacitor C5 are all grounded.

Further, the driving circuit comprises a triode Q1, a triode Q2, a diode D1, a capacitor C1, a resistor R1, a resistor R2, a resistor R3 and a resistor R4;

When the controller is used, the third pin of the controller outputs a high level, the resistor R3 and the resistor R4 generate a bias voltage to enable the triode Q2 to be conducted, a coil of the relay is provided with a point, the switch of the relay is closed, the primary side of the main transformer T1 is connected with an input power supply, and a load is connected to the secondary side of the main transformer T1, so that the low-power-consumption standby function is realized.

It should be noted that, for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the order of acts described, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and elements referred to are not necessarily required in this application.

Claims

1. A linear transformer standby circuit of a voltage conversion socket is characterized in that: the power supply comprises a conversion socket circuit, a relay, a driving circuit, a controller, a main transformer T1, a standby transformer T2 and an AC/DC conversion circuit, wherein the output end of the conversion socket circuit is respectively connected with one end of the relay and the primary side of the standby transformer T2, the other end of the relay is connected with the primary side of the main transformer T1, the secondary side of the standby transformer T2 is connected with the AC/DC conversion circuit, the AC/DC conversion circuit is a driving circuit and a controller working power supply, the input end of the driving circuit is connected with the controller, and the output end of the driving circuit is connected with the excitation end of the relay.

2. The linear transformer standby circuit of a voltage conversion outlet of claim 1, wherein: the AC/DC conversion circuit comprises a rectifying circuit and a filter circuit, wherein the input end of the rectifying circuit is connected with the secondary side of the standby transformer T2, the output end of the rectifying circuit is connected with the input end of the filter circuit, and the output end of the filter circuit is connected with the power supply ends of the driving circuit and the controller.

3. The linear transformer standby circuit of a voltage conversion outlet of claim 2, wherein: the rectifying circuit comprises a fuse F1, a diode D2, a diode D3, a diode D4, a diode D5, a capacitor C2 and a capacitor C3;

4. The linear transformer standby circuit of a voltage conversion outlet of claim 3, wherein: the filter circuit comprises a capacitor C6, a capacitor C7 and a capacitor C5, wherein one pin of the capacitor C6, one pin of the capacitor C7 and the anode of the capacitor C5 are all connected with the cathode of a diode D3 tube, the common ends of the one pin of the capacitor C6, the one pin of the capacitor C7 and the anode of the capacitor C5 are output ends of the filter circuit, and the two pins of the capacitor C6, the two pins of the capacitor C7 and the cathode of the capacitor C5 are all grounded.

5. The linear transformer standby circuit of a voltage conversion outlet of claim 1, wherein: the driving circuit comprises a triode Q1, a triode Q2, a diode D1, a capacitor C1, a resistor R1, a resistor R2, a resistor R3 and a resistor R4;

6. The linear transformer standby circuit of a voltage conversion outlet of claim 1, wherein: the relay is of a double-pole double-throw type.

7. The linear transformer standby circuit of a voltage conversion outlet of claim 1, wherein: the controller is an STC12 single-chip microcomputer.