CIRCUIT FOR COMPENSATING TEMPERATURE OF ELECTRONIC KIMCHI JAR

摘要

PURPOSE: A circuit for compensating temperature of electronic Kimchi jar is provided to efficiently driving an electronic Kimchi jar by varying a temperature detecting range and preventing a freeze or a decomposition of Kimchi. CONSTITUTION: A thermistor(TH) senses a temperature of an inner portion of a jar and varies an inner resistor value according to the sensed temperature. A variable resistor(Ra) is connected to one side of the thermistor(TH) and provides a suitable voltage to a control unit(40). A bias resistor(Rb) is connected to the variable resistor(Ra) and provides a bias voltage to the variable resistor(Ra). A resistor value of the thermistor(TH) is varied when the inner portion of the jar is varied. A power supply voltage(VCC) is divided according to resistor values of the variable resistor(Ra) and the bias resistor(Rb) and the divided voltage is provided to the control unit(40).