Patent ID: 6753699
Filing Date: 2004-06-22
Classification: H03K

Abstract:
An integrated circuit comprising:a first three-terminal device of a first type; a second three-terminal device of the first type, a first terminal of the second three-terminal device electrically coupled to a first terminal of the first three-terminal device, and a second terminal of the second three-terminal device electrically coupled to a second terminal of the first three-terminal device; and a switch coupled to the second terminals of the first and second three-terminal devices, wherein: a reference current applied to a third terminal of the second three-terminal device generates a control voltage applied to the second terminals of the first and second three-terminal devices; where the control voltage is a function of comparing an output voltage at the third terminal of the second three-terminal device to a reference voltage; and the reference current is derived from the reference voltage and a reference resistance.