Light-controlled energy-saving device of half-wave rectification with thermal infrared detection

The device switches AC power to the load when the thermal infrared sensing switching circuit detects the thermal infrared, but when the thermal infrared is not detected, the AC power switches to the light control switching circuit; when the light reaches the set value Start the light-controlled switching circuit, switch the AC power to the half-wave rectifier to generate half-wave AC power, and then use the optocoupler drive circuit to control the opening of the solid-state relay (DC to AC type) to control the output of the half-wave AC power to the load, thereby saving half Power regulation of electrical energy.