CN202798444U - Circuit module capable of zero power consumption in a standby state - Google Patents

Abstract

The utility model belongs to the technical field of control circuits and especially relates to a circuit module capable of zero power consumption in a standby state. The circuit module comprises a starting circuit, a standby detecting circuit, a voltage comparing power-supplying circuit and a feedback circuit. The input end of the starting circuit is connected with a rectifying filter. The output end of the starting circuit is coupled to the input end of the standby detecting circuit. The output end of the standby detecting circuit is coupled to the input end of the voltage comparing power-supplying circuit. The output end of the voltage comparing power-supplying circuit is coupled to the input end of the feedback circuit through a timer U4. The output end of the feedback circuit is coupled to the input end of the starting circuit. Compared with the prior art, the circuit module can stop an input in a timely manner through the reasonable circuit design when a home appliance is removed or a charging process is finished. The input power is zero and the consumed electric energy is zero. Zero power consumption is achieved during a standby state. The aim of energy conservation and environment protection is achieved. Furthermore, the circuit module provided by the utility model has a simple structure and is easy to realize. The circuit module can be applied in a large scale.

Description

A zero-power standby circuit module

technical field

The utility model belongs to the technical field of control circuits, in particular to a zero-power standby circuit module.

Background technique

The standby button of common household appliances is generally processed by a micro control unit (MCU). In order to meet the requirements of low power consumption, most of the MCU will enter sleep or stop mode. In these modes, the MCU will still consume tens of microamps of current, resulting in a waste of power.

In recent years, people have higher and higher requirements for green, energy saving and environmental protection, and the above-mentioned standby button cannot meet people's needs. Therefore, it is indeed necessary to provide a standby circuit capable of achieving zero power consumption, so that when the household appliance is in the standby state, the electric energy consumed by it is zero, thereby achieving the purpose of energy saving and environmental protection.

Utility model content

The purpose of the utility model is to provide a zero-power standby circuit module for the deficiencies of the prior art, so that when the household appliances are in the standby state, the electric energy consumed by them is zero, so as to achieve the purpose of energy saving and environmental protection. In order to overcome the deficiency that the standby circuit in the prior art still consumes electric energy when it enters the sleep or stop mode.

In order to achieve the above object, the utility model adopts the following technical scheme: a zero-power consumption standby circuit module, including a start-up circuit, a standby detection circuit, a voltage comparison power supply circuit and a feedback circuit, the input end of the start-up circuit is connected with a rectifier filter , the output terminal of the start-up circuit is coupled to the input terminal of the standby detection circuit, the output terminal of the standby detection circuit is coupled to the input terminal of the voltage comparison power supply circuit, and the output terminal of the voltage comparison power supply circuit passes a timing U4 is coupled to the input of the feedback circuit, and the output of the feedback circuit is coupled to the input of the start-up circuit.

As an improvement of the zero-power standby circuit module of the present invention, the starting circuit includes a touch switch Sw1, a first resistor R1 and a relay Re, and the touch switch Sw1 is connected in series with the first resistor R1, so The relay Re, the touch switch Sw1 and the first resistor R1 are connected in parallel.

As an improvement of the zero-power standby circuit module of the present invention, the standby detection circuit includes a transformer T, a second resistor R2, a first capacitor C1, a first diode D1, a first power supply EC1, and a first inductance coil L1, the second power supply EC2, the fourth resistor R4, the third resistor R3, the second capacitor C2, LED and the sixth resistor R6, the input terminals of the transformer T are respectively connected with the first resistor R1 and the relay Re, so One end of the output end of the transformer T is connected to the positive pole of the first power supply EC1 through the second resistor R2 and the first capacitor C1, and the other end of the output end of the transformer T is respectively connected to the negative pole of the first power supply EC1 and the negative pole of the second power supply EC1; The negative pole of the first diode D1 is connected to one end of the output terminal of the transformer T, the positive pole is connected to the positive pole of the first power supply EC1, one end of the first inductance coil L1 is connected to the positive pole of the first power supply EC1, and the other end is connected to the positive pole of the second power supply EC2. Positive electrode, fourth resistor R4, second capacitor C2 and third resistor R3; the third resistor R3 is connected in series with the LED, one end of the sixth resistor R6 is connected to the LED, and the other end is connected to the voltage comparison power supply circuit.

As an improvement of the zero-power standby circuit module of the present invention, a filter is connected between the start-up circuit and the transformer T.

As an improvement of the zero power consumption standby circuit module of the present invention, the voltage comparison power supply circuit includes a thirteenth resistor R13, a second comparator U2, a third comparator U3, a sixteenth resistor R16, and a sixth capacitor C6 , the seventeenth resistor R17, and the eighteenth resistor R18, one end of the thirteenth resistor R13 is connected to the sixth resistor R6, the other end is connected to the negative pole of the second comparator U2, and the positive pole of the second comparator U2 passes through The sixteenth resistor R16 and the sixth capacitor C6 are connected to the negative pole of the third comparator U3, the positive pole of the second comparator U2 is connected to the positive pole of the third comparator U3 through the sixteenth resistor R16, and the base of the second comparator U2 The pole is connected to the negative pole of the third comparator U3 through the seventeenth resistor R17.

As an improvement of the zero power consumption standby circuit module of the present invention, the feedback circuit includes a fourth diode D4, a timer U4, a second triode Q2, a second transistor U2A, a fifteenth resistor R15, a Three triodes Q3 and the fourteenth resistor R14, the base of the second comparator U2 is also connected to the positive power supply terminal of the timer U4, and the output terminal of the timer U4 is connected to the fourth diode D4 through the fourteenth resistor R14 The cathode of the fourth diode D4 is coupled to the base of the second transistor Q2, the emitter of the second transistor Q2 is grounded, and the collector of the second transistor Q2 passes through the fifteenth resistor R15 The output voltage is connected to the input end of the start-up circuit, the second transistor U2A is connected in parallel with the second triode Q2, and the third comparator U3 is connected to the cathode of the fourth diode D4 through an eighteenth resistor.

When using the adapter or charger containing the circuit of the present utility model to supply power or charge the household appliances, you only need to touch the touch switch Sw1 once, and then there will be power output, and when the household appliances are removed or the charging is completed, the detection resistor (that is, the sixth resistor R6) voltage drop becomes smaller accordingly, when the voltage drop of the detection resistor (that is, the sixth resistor R6) drops to the set value, the second comparator U2 outputs a high level, and the timer U4 Power supply, when the timer U4 is energized, the timing starts, when the set time is reached, the second comparator U2 outputs a low level, the second transistor U2A starts, and feeds back to the starting circuit, thereby starting the relay Re. After the relay Re starts, the input is disconnected, and the input power is 0 at this time, so that the standby power reaches zero power consumption.

When recharging is required, just touch the switch Sw1 lightly, and if the device is not connected within the set time, the input will be disconnected.

Compared with the prior art, the utility model adopts a reasonable circuit design, so that when the household appliance is removed or the charging is completed, the input can be disconnected in time. At this time, the input power is 0, and the power consumption is zero, so that the standby can reach Zero power consumption, to achieve the purpose of energy saving and environmental protection. In addition, the utility model has a simple structure, is easy to implement, and can be applied on a large scale.

Description of drawings

Fig. 1 is the circuit schematic diagram of the utility model.

Detailed ways

The utility model and its beneficial technical effects will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, a zero-power standby circuit module includes a start-up circuit 1, a standby detection circuit 2, a voltage comparison power supply circuit 3 and a feedback circuit 4, the input end of the start-up circuit 1 is connected with a rectifier filter 6, and the start-up circuit The output terminal of 1 is coupled to the input terminal of the standby detection circuit 2, the output terminal of the standby detection circuit 2 is coupled to the input terminal of the voltage comparison power supply circuit 3, and the output terminal of the voltage comparison power supply circuit 3 is coupled to the feedback circuit 4 through the timer U4. The input terminal, the output terminal of the feedback circuit 4 is coupled to the input terminal of the starting circuit 1 .

The starting circuit 1 includes a touch switch Sw1, a first resistor R1 and a relay Re, the touch switch Sw1 is connected in series with the first resistor R1, and the relay Re and the touch switch Sw1 are connected in parallel with the first resistor R1. A rectification filter 6 composed of a rectifier and a filter is arranged between the starting circuit 1 and the live line L and the neutral line N.

The standby detection circuit 2 includes a transformer T, a second resistor R2, a first capacitor C1, a first diode D1, a first power supply EC1, a first inductance coil L1, a second power supply EC2, a fourth resistor R4, and a third resistor R3 , the second capacitor C2, the LED and the sixth resistor R6, the input end of the transformer T is connected to the first resistor R1 and the relay Re respectively, and one end of the output end of the transformer T is connected to the first power supply EC1 through the second resistor R2 and the first capacitor C1 The positive pole of the output terminal of the transformer T is respectively connected to the negative pole of the first power supply EC1 and the negative pole of the second power supply EC1; the negative pole of the first diode D1 is connected to one end of the output terminal of the transformer T, and the positive pole is connected to the positive pole of the first power supply EC1 One end of the first inductance coil L1 is connected to the positive pole of the first power supply EC1, and the other end is respectively connected to the positive pole of the second power supply EC2, the fourth resistor R4, the second capacitor C2 and the third resistor R3; the third resistor R3 is connected in series with the LED, One end of the sixth resistor R6 is connected to the LED, and the other end is connected to the voltage comparison power supply circuit 3 .

A filter 5 is connected between the starting circuit 1 and the transformer T. One end of the input end of the transformer T is connected to the filter 5 . The other end of the input end of the transformer T is grounded through the second switch Sw2.

The voltage comparison power supply circuit includes a thirteenth resistor R13, a second comparator U2, a third comparator U3, a sixteenth resistor R16, a sixth capacitor C6, a seventeenth resistor R17 and an eighteenth resistor R18, and the thirteenth resistor One end of R13 is connected to the sixth resistor R6, the other end is connected to the negative pole of the second comparator U2, the positive pole of the second comparator U2 is connected to the negative pole of the third comparator U3 through the sixteenth resistor R16 and the sixth capacitor C6, The anode of the second comparator U2 is connected to the anode of the third comparator U3 through the sixteenth resistor R16, and the base of the second comparator U2 is connected to the cathode of the third comparator U3 through the seventeenth resistor R17.

The feedback circuit includes a fourth diode D4, a timer U4, a second transistor Q2, a second transistor U2A, a fifteenth resistor R15, a third transistor Q3 and a fourteenth resistor R14, and a second comparator U2 The base of the timer U4 is also connected to the positive terminal of the power supply of the timer U4, the output terminal of the timer U4 is connected to the negative pole of the fourth diode D4 through the fourteenth resistor R14, and the positive pole of the fourth diode D4 is coupled to the second three The base of the transistor Q2, the emitter of the second transistor Q2 are grounded, the collector of the second transistor Q2 outputs a voltage through the fifteenth resistor R15, the second transistor U2A is connected in parallel with the second transistor Q2, The third comparator U3 is connected to the cathode of the fourth diode D4 through the eighteenth resistor. The two ends of the seventeenth resistor R17 are also connected in parallel with the fifth diode D5, the negative pole of the second comparator U2 is also connected with the sixteenth resistor R16 through the seventh capacitor C7, and the sixteenth resistor R16 is connected with the second comparator The base of U2 is also connected to the nineteenth resistor R19 and the second resistor R20 respectively.

The working principle of the utility model is: when using the adapter or charger containing the circuit of the utility model to supply power or charge the household appliance, only need to lightly touch the touch switch Sw1, that is, the power output, and when the household appliance is moved When the division or charging is completed, the voltage drop of the detection resistor (that is, the sixth resistor R6) decreases accordingly, and when the voltage drop of the detection resistor (that is, the sixth resistor R6) drops to the set value, the output of the second comparator U2 is high Level, and supply power to the third comparator U3. When the third comparator U3 is powered on, the timing starts. When the set time is reached, the second comparator U2 outputs a low level, and the second transistor U2A starts and feeds back to The circuit is activated, thereby activating the relay Re. After the relay Re starts, the input is disconnected, and the input power is 0 at this time, so that the standby power reaches zero power consumption. When recharging is required, just touch the switch Sw1 lightly, and if the device is not connected within the set time, the input will be disconnected.

In the figure, VCC is the positive terminal of the power supply, Vout is the voltage output terminal, OUT is the output terminal, GND is the connection point, OSC is the signal generation terminal, L is the live wire, and N is the neutral wire.

It should be noted that, according to the disclosure and teaching of the above specification, those skilled in the art to which the present invention pertains may also make changes and modifications to the above implementation manners. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some equivalent modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims (6)

1. Zero consumption standby circuit module, it is characterized in that: comprise start-up circuit, the standby testing circuit, voltage ratio is than power supply circuits and feedback circuit, the input of described start-up circuit is connected with rectifier filter, the output of described start-up circuit is coupled to the input of described standby testing circuit, the output of described standby testing circuit is coupled to described voltage ratio than the input of power supply circuits, described voltage ratio is coupled to the input of described feedback circuit than the output of power supply circuits by timer U4, and the output of described feedback circuit is coupled to the input of described start-up circuit.

2. Zero consumption standby circuit module according to claim 1, it is characterized in that: described start-up circuit comprises a little tactile switch S w1, the first resistance R 1 and relay R e, described point touches switch S w1 and described the first resistance R 1 is connected in series, and described relay R e and described point touch switch S w1 and described the first resistance R 1 all is connected in parallel.

3. Zero consumption standby circuit module according to claim 2, it is characterized in that: described standby testing circuit comprises transformer T, the second resistance R 2, the first capacitor C 1, the first diode D1, the first power supply EC1, the first inductance coil L1, second source EC2, the 4th resistance R 4, the 3rd resistance R 3, the second capacitor C 2, LED and the 6th resistance R 6, the input of described transformer T is connected with relay R e with described the first resistance R 1 respectively, one end of the output of described transformer T connects the positive pole of the first power supply EC1 through the second resistance R 2 and the first capacitor C 1, and the other end of the output of described transformer T connects respectively the negative pole of the first power supply EC1 and the negative pole of second source EC1; The negative pole of described the first diode D1 connects an end of the output of transformer T, positive pole connects the positive pole of the first power supply EC1, the positive pole of a termination the first power supply EC1 of the first inductance coil L1, the other end is positive pole, the 4th resistance R 4, the second capacitor C 2 and the 3rd resistance R 3 of second source EC2 respectively; Described the 3rd resistance R 3 is connected in series with LED, and an end of described the 6th resistance R 6 is connected with LED, and the other end is connected than power supply circuits with voltage ratio.

4. Zero consumption standby circuit module according to claim 3 is characterized in that: be connected with filter between described start-up circuit and the described transformer T.

5. Zero consumption standby circuit module according to claim 4, it is characterized in that: described voltage ratio comprises the 13 resistance R 13 than power supply circuits, the second comparator U2, the 3rd comparator U3, the 16 resistance R 16, the 6th capacitor C 6, the 17 resistance R 17, with the 18 resistance R 18, one end of described the 13 resistance R 13 is connected with the 6th resistance R 6, the other end is connected with the negative pole of the second comparator U2, the positive pole of the second comparator U2 is connected with the negative pole of the 3rd comparator U3 with the 6th capacitor C 6 by the 16 resistance R 16, the positive pole of the second comparator U2 is connected with the positive pole of the 3rd comparator U3 by the 16 resistance R 16, and the base stage of the second comparator U2 is connected with the negative pole of the 3rd comparator U3 by the 17 resistance R 17.

6. Zero consumption standby circuit module according to claim 5, it is characterized in that: described feedback circuit comprises the 4th diode D4, timer U4, the second triode Q2, transistor seconds U2A, the 15 resistance R 15, the 3rd triode Q3 and the 14 resistance R 14, the base stage of the second comparator U2 also is connected with the power positive end of timer U4, the output of timer U4 is connected with the negative pole of the 4th diode D4 by the 14 resistance R 14, the positive pole of the 4th diode D4 is coupled to the base stage of the second triode Q2, the grounded emitter of the second triode Q2, the collector electrode of the second triode Q2 is by the input of the 15 resistance R 15 output voltages to described start-up circuit, described transistor seconds U2A and described the second triode Q2 are connected in parallel, and the 3rd comparator U3 is connected with the negative pole of the 4th diode D4 by the 18 resistance.

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