Design of an Intelligent Temperature Control System for High-power LED Lighting

An intelligent temperature control system for high-power LED (Light-Emitting Diode) lighting has been designed in this paper. The system includes single-chip microcomputer STC12C5412, temperature sensor module DS18B20, power module, LED circuit driver module, LED air-cooled cooling driver module and Bluetooth module. The temperature sensor module collects data and drives the LED air cooling system through a single chip microcomputer. The Bluetooth module is used to receive wireless signal and transmit the signal to the single chip microcomputer. The microcontroller closes the air cooling system by outputting PWM (Pulse Width Modulation) signal and controls the LED driving circuit to reduce the driving current at the same time. As a result, the junction temperature of LED decreased. The Bluetooth module can also support the expansion of lighting effects such as color conversion.