Patent Number: 7,535,286

Title: Constant current source apparatus including two series depletion-type MOS transistors

Abstract: In a constant current source apparatus for supplying a load current to at least one load, first and second output terminals are provided, and at least one of the first and second output terminals is capable of being connected to the load. First and second depletion-type MOS transistors are connected in series between the first and second output terminals. A source and a gate of the first depletion-type MOS transistor are connected to a gate of the second depletion-type MOS transistor.

Inventors: Shimada; Eiji (Kanagawa, JP)

Assignee: NEC Electronics Corporation

International Classification: G05F 1/10 (20060101); G05F 3/02 (20060101)

Expiration Date: 2021-05-19 0:00:00