REFERENCE VOLTAGE GENERATION CIRCUIT FOR COMPENSATING TEMPERATURE

摘要

PURPOSE: A reference voltage generation circuit for compensating temperature is provided to allow a light emitting diode(LED) to radiate optical power in response to the variation of the temperature by continuously maintaining the change of width of the reference voltage applied to a plurality of LEDs. CONSTITUTION: A reference voltage generation circuit for compensating a temperature includes a full-wave rectifier(100) for outputting rectified direct voltage inputted from a bridge circuit(160) after alternating current power of the power supply(120) is controlled through a transformer(140), a plurality of temperature compensation blocks(200) provided with the first resistor(230) connected to a collector of the transistor(220), the first temperature compensation resistor(240) connected in parallel, the second resistor(250) connected to a base and the second temperature compensation resistor(260) connected in serial, and a light emission block(300) connected thereto a plurality of LEDs(320) in serial between the emitter of the transistor(220) and a cathode line(280).