Circuit for reducing standby power consumption and electronic equipment

Abstract

The invention discloses a circuit for reducing standby power consumption and electronic equipment and belongs to the technical field of LED driving power sources. The circuit comprises an EMC circuit,an alternating current-direct current converter, a control chip and an AC-3.3V converter; the circuit also comprises a silicon controlled rectifier and an optical coupler; one end of the EMC circuitis connected with 220V alternating current; the other end of the EMC circuit is connected with one end of the alternating current-direct current converter through the silicon controlled rectifier; theother end of the alternating current-direct current converter is connected with an LED load; the control end of the control chip is connected with the first end of the optical coupler; the second endof the optical coupler is connected with the control end of the silicon controlled rectifier; one end of the AC-3.3V converter is connected with the other end of the EMC circuit; and the other end ofthe AC-3.3V converter is connected with the power source end of the control chip; The circuit structure can reduce power consumption and realize an energy-saving effect under a standby state. With the circuit adopted, the problem that a lamp bead is slightly bright during non-isolated shutdown is solved, and a condition that a terminal user can be prevented from mistakenly considering that a lampis not turned off.

Description

technical field [0001] The invention relates to the technical field of LED drive power supply, in particular to a circuit and electronic equipment for reducing standby power consumption. Background technique [0002] At present, existing commonly used circuits such as figure 1 As shown, its working principle is: input AC 220V into 3.3V, supply power to the intelligent module, and control the current of the AC-DC module through the PWM signal, so as to realize the dimming function; the defects of the circuit structure are: 2.4G, wifi , Bluetooth and other LED intelligent remote control dimming products have a high power during standby, reaching more than 1W; the existing non-isolated products have a problem that the lamp beads are slightly bright when the light is turned off. Contents of the invention [0003] Aiming at the problems of the background technology, the present invention provides a circuit and electronic equipment for reducing standby power consumption, so as ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of the background technology, the present invention provides a circuit and electronic equipment for reducing standby power consumption, so as to reduce the standby power and solve the problem that the lamp beads are slightly bright during non-isolated shutdown;

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