Patent ID: 7053694

Claim:
A band-gap circuit having: a first bipolar transistor; a second bipolar transistor; a first voltage control current source connected to an emitter of the first bipolar transistor; a second voltage control current source connected to the emitter of the second bipolar transistor; a feedback control amplifier for having voltages of the emitter of the first bipolar transistor and the emitter of the second bipolar transistor inputted respectively and controlling the first and second voltage control current sources to equalize emitter voltages of the first and second bipolar transistors; series first resistors connected between a base and the emitter of the first bipolar transistor; and a second resistor connected between the base and a collector of the second bipolar transistor and series third resistors connected between the base and emitter of the second bipolar transistor respectively, and is characterized by: producing an output from a node between the series third resistors between the base and emitter of the second bipolar transistor.