Triac dimming system for lighting dimming function

A triac dimming system for lighting dimming function, comprising:

• a triac dimming circuit and a zero-cross test unit;
• wherein the zero-cross test unit connects with the triac dimming circuit and passes a zero-cross signal to the triac dimming circuit, then a main control center unit of the triac dimming circuit adjusts an ON/OFF timing of the triac dimming circuit according to the zero-cross signal;
• wherein the system causes a conduction angle of the triac dimming circuit to be stable and eliminate flicker;
• wherein the triac dimming circuit includes a switch power supply, said main control center unit, a triac dimming control circuit, a DC power supply control circuit, said zero-cross test unit and dimming control button unit wherein the main control center unit connects to the triac dimming control circuit, the switch power supply, the zero-cross test unit and the dimming control button unit separately;
• wherein the triac dimming control circuit connects to the DC power supply circuit via a rectified unit wherein a signal detection component of zero-cross test unit the connects to a triac of the triac dimming control circuit and the rectified unit and wherein the DC power supply control circuit connect to the switch power supply.