Fan lamp control circuit, control method and fan lamp system

Abstract

The invention discloses a fan lamp control circuit, a control method and a fan lamp system. The fan lamp control circuit comprises a motor control circuit and a lamp panel auxiliary power supply circuit, wherein the motor control circuit is provided with a first input end, a second input end, a first output end, a second output end and a ground potential end; the first output end and the second output end are coupled with the motor, and the motor control circuit is used for converting input alternating current into chopped alternating current and sending the chopped alternating current to themotor to drive the motor to work; the lamp panel auxiliary power supply circuit is coupled with the lamp panel and the motor control circuit and used for being matched with the motor control circuit to control the conduction state of a power supply loop where the lamp panel is located; and the first end of the lamp panel is coupled with the first input end or the second input end of the motor control circuit, and the second end of the lamp panel is coupled with the first output end or the second output end of the motor control circuit. According to the fan lamp control circuit, the control method and the fan lamp system, a stepless electronic speed regulator of a single-phase induction motor can be compatible with the wiring of a current ''two-in and three-out'' fan lamp controller, and the motor and the lamp panel can be independently controlled.

Description

technical field [0001] The invention belongs to the technical field of electronic circuits and relates to a control circuit technology, in particular to a fan lamp control circuit, a control method and a fan lamp system. Background technique [0002] The fan lamp combines the functions of fan and lighting, which is beautiful and generous, and is very popular in the domestic home appliance market. Traditional fans use taps to adjust the speed, the speed adjustment gear is limited, and the disadvantages of low light load efficiency have become increasingly prominent. In response to this problem, the stepless electronic speed regulation scheme with high efficiency and high power factor will gradually replace the traditional tap speed regulation scheme. [0003] At the current stage, the fan light controller of the traditional scheme adopts the "two-in and three-out" wiring method. figure 1 Wiring diagram for existing fan light and controller; see figure 1 , The fan lamp remo...

AI Technical Summary

Problems solved by technology

exist figure 2 In the current circuit structure, the neutral line of the motor is the output of a chopper bridge arm, which cannot be shared with the neutral line of the light in the existing connection method; therefore, if the fan light controller adopts figure 1 The wiring method is not compatible with figure 2 The wiring mode of the chopper bridge electronic speed controller in

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