TRIAC DIMMING SYSTEM AND ITS DIMMING METHOD

摘要

This invention discloses a triac dimming system and its dimming method, This system includes a triac dimming circuit and a zero-cross test unit. The zero-cross test unit connect with triac dimming circuit and pass the zero-cross signal to triac dimming circuit, then the main control center of triac dimming circuit will adjust the ON/OFF timming of triac dimming unit according to the zero-cross signal and the reserved amount to make the conduction angle of triac dimming circuit stable. After precisely controlling the brightness of the AC lamps, it can keep the AC load (AC lamps) flicker within the acceptable level of the user (no flicker feeling by the naked eye).