A type of thyristor dimmer circuit and G9 type LED lamp using the thyristor dimmer circuit

摘要

A type of thyristor dimmer switch for LED lamps characterised by the fact that it includes an LED lamp load, a driver circuit, a dimmer control circuit, a dimmer control circuit, a thyristor dimmer, a diverter circuit, a LED driver circuit and a disconnect switch; the input end of the driver switch is connected to the thyristor dimmer and the output end of the driver switch is connected to the bead load of the LED lamp. The dimmer detection switch recognises that the SCR dimmer changes the input voltage phase. The circuit keeps the power up,which the thyristor dimmer needs to dim. The dimmer control switch makes appropriate settings for dimming the thyristor to stabilize the output of the thyristor dimmer. The LED driver switch and the disconnect switch provide the power required by the LED load, and the SCR dimmer is responsible for dimming the LED lamp bead load, so that the current change of the LED bead load is uniform and smooth.