CN212463581U

CN212463581U - Alternating current load shunting and power taking circuit

Info

Publication number: CN212463581U
Application number: CN202021472951.6U
Authority: CN
Inventors: 赵龙; 李文范; 张天宝; 黎辉
Original assignee: Shenzhen Power2control Smart Tech Co ltd
Current assignee: Huizhou haomeishi Intelligent Technology Co.,Ltd.
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-02-02
Anticipated expiration: 2030-07-23

Abstract

The utility model discloses an alternating current load shunts gets electric circuit, including shunt and alternating current load, its characterized in that the shunt with the alternating current load is parallelly connected in alternating current return circuit, the shunt includes alternating voltage detection circuitry and reposition of redundant personnel control circuit, alternating voltage detection circuitry with reposition of redundant personnel control circuit electric connection, alternating voltage detection circuitry does through the voltage value that detects the alternating current reposition of redundant personnel control circuit provides switch trigger signal, establishes periodic switching on and the state of ending to the realization is right respectively at the voltage range of difference the shunt with the alternating current load provides alternating current power supply. The utility model discloses a time proportion of rational distribution load and intelligent switch power consumption to realize the timesharing power supply of load and intelligent switch, thoroughly solved the problem of the power supply flashing light of leaking current.

Description

Alternating current load shunting and power taking circuit

Technical Field

The utility model relates to a mains operated field, specific electric circuit is got in reposition of redundant personnel of alternating current load that says so.

Background

The single live wire of intelligence switch gets the electricity and adopts the series-connected leakage current to get the electricity technique mostly, but this technique because the consumption of intelligence switch self leads to the LED lamp to twinkle or can't close the phenomenon when the off-state very easily, serious influence the popularization and the popularization of intelligence switch in upgrading transformation application.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a mode of load reposition of redundant personnel through the time proportion of rational distribution load and switch power consumption to realize the timesharing power supply of load and intelligent switch, thoroughly solved the problem of leakage current power supply flashing light.

The technical scheme is as follows: the utility model provides an alternating current load divides and gets electric circuit, includes shunt and alternating current load, the shunt with alternating current load connects in parallel in alternating current return circuit, the shunt includes alternating voltage detection circuitry and reposition of redundant personnel control circuit, alternating voltage detection circuitry with reposition of redundant personnel control circuit electric connection, alternating voltage detection circuitry does through the voltage value that detects the alternating current the reposition of redundant personnel control circuit provides switch trigger signal, establishes periodic turn-on and off state to the realization is in different voltage ranges respectively to the shunt with alternating current load provides alternating current power supply.

Preferably, the shunt control circuit includes a switching element electrically connected to the ac voltage detection circuit, and the on and off states of the switching element are controlled by the ac voltage detection circuit.

Preferably, the alternating voltage detection circuit sets a trigger voltage threshold of the alternating current, and when the alternating voltage value is lower than the trigger voltage threshold, the alternating voltage detection circuit provides a conduction trigger signal for the switching element in the shunt control circuit to enable the switching element to be in a conduction state, and at this time, the alternating current forms a passage through the shunt; when the alternating voltage value is higher than the trigger voltage threshold value, the alternating voltage detection circuit provides a cut-off trigger signal for the switch element in the shunt control circuit, so that the switch element is in a cut-off state, and at the moment, the alternating current forms a loop through the alternating current load.

Preferably, the switching element is a MOS transistor, a thyristor, or a relay.

Preferably, the alternating current load is an LED lamp, a motor, an electric heating device.

Has the advantages that: the utility model discloses an intelligence switch provides the independent power supply mechanism that does not receive the restriction of alternating current load for intelligence switch guarantees to have sufficient electric current on communication and control function, has thoroughly solved the problem of the power supply flashing light of leaking current simultaneously.

Drawings

Fig. 1 is a schematic block diagram of the present invention.

Fig. 2 is a schematic diagram of the ac shunt waveform of the present invention.

Fig. 3 is a schematic diagram of a case circuit of the present invention.

The reference numbers in the figures represent: shunt 1, alternating current load 2, alternating current voltage detection circuit 11, shunt control circuit 12, switching element 122.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "comprises" or "comprising" and the like in the description and in the claims of the present application is intended to cover the elements or items listed below as "comprising" or "including" and their equivalents, and not to exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

As shown in fig. 1, an alternating current load shunt power-taking circuit includes a shunt 1 and an alternating current load 2, the shunt 1 and the alternating current load 2 are connected in parallel in an alternating current circuit, the shunt 1 includes an alternating current voltage detection circuit 11 and a shunt control circuit 12, the alternating current voltage detection circuit 11 is electrically connected with the shunt control circuit 12, the alternating current voltage detection circuit 11 provides a switch trigger signal for the shunt control circuit 12 by detecting a voltage value of alternating current, and establishes periodic on and off states, so that alternating current power supply is respectively provided for the shunt 1 and the alternating current load 2 in different voltage ranges;

the shunt control circuit 12 includes a switch element 122, the switch element 122 is electrically connected to the ac voltage detection circuit 11, and the on and off states of the switch element 122 are controlled by the ac voltage detection circuit 11.

As shown in fig. 2, the ac voltage detection circuit 11 sets a positive half-wave trigger voltage threshold and a positive-negative wave trigger voltage threshold of the ac power, and when the absolute value of the ac voltage is lower than the positive half-wave trigger voltage threshold or the positive-negative wave trigger voltage threshold, the ac voltage detection circuit 11 provides a conduction trigger signal for the switching element 122 in the shunt control circuit 12, so that the switching element 122 is in a conduction state, and at this time, the ac power passes through the shunt 1 to form a path, so as to supply power to the loop load in the conduction period of the shunt 1; when the absolute value of the alternating current voltage is higher than the positive half-wave trigger voltage threshold or the positive and negative-wave trigger voltage threshold, the alternating current voltage detection circuit 11 provides a cut-off trigger signal for the switching element 122 in the shunt control circuit 12, so that the switching element 122 is in a cut-off state, and at this time, the alternating current forms a loop through the alternating current load 2.

Fig. 3 shows an application example of the present invention. In the figure, P1 is an ac load interface, and four diodes D1, D2, D3 and D4 form a rectifier bridge to shape ac into dc. The resistor R1, the voltage stabilizing diode D5 and the capacitor C1 form a direct current 10V voltage stabilizing circuit. The resistors R3, R4 and the transistor Q1 form a voltage detection circuit, wherein the resistor R3 and the resistor R4 form a resistor voltage division circuit and switch control is carried out on the transistor Q1. The triode Q1 is connected with the current-limiting resistor R2 to control the MOS transistor T1, when the triode Q1 is turned off, the control end of the MOS transistor T1 is at a high level, the MOS transistor T1 is turned on, and the shunt is in a short-circuit state in the time period; when the transistor Q1 is turned on, the control terminal of the MOS transistor T1 is at a low level, and the MOS transistor T1 is turned off, so that power is supplied to the ac load during this period.

The above is to the detailed introduction that the embodiment of the present invention provides, to the general technical personnel in this field, according to the idea of the embodiment of the present invention, there is a change part on the concrete implementation and the application scope, to sum up, this description content should not be understood as the limitation of the present invention.

Claims

1. An alternating current load shunt power taking circuit comprises a shunt and an alternating current load, and is characterized in that the shunt and the alternating current load are connected in parallel in an alternating current circuit, the shunt comprises an alternating current voltage detection circuit and a shunt control circuit, the alternating current voltage detection circuit is electrically connected with the shunt control circuit, and the alternating current voltage detection circuit provides a switch trigger signal for the shunt control circuit;

the shunt control circuit comprises a switch element, the switch element is electrically connected with the alternating voltage detection circuit, and the on-off state of the switch element is controlled by the alternating voltage detection circuit.

2. The alternating current load shunt power taking circuit according to claim 1, characterized in that: the switching element is an MOS tube, a transistor, a thyristor or a relay.

3. The alternating current load shunt power taking circuit according to claim 1, characterized in that: the alternating current load is an LED lamp, a motor or an electric heating device.