Current source circuit

Details Current source circuit Current source circuit

1998-07-13

1999-10-12

Nguyen, Matthew

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

G05F 316

Patent

active

059660074

ABSTRACT:
A current source circuit has a current mirror circuit and a correct ion circuit. The current mirror circuit includes first to fourth transistors. The bases of the first and second transistors are commonly connected to each other. A collector of the third transistor is connected to a common base of the first and second transistors. An emitter of the third transistor is connected to an emitter of the fourth transistor. A base of the fourth transistor is connected to the collector of the first transistor. The correction circuit includes fifth to eighth transistors. The base of the fifth and sixth transistors are commonly connected to each other. An emitter of the seventh transistor is connected to the common base of the fifth and sixth transistors. A collector of the seventh transistor is connected to an emitter of the eighth transistor. A base of the eighth transistor is connected to the collector of the second transistor.

REFERENCES:
patent: 4525683 (1985-06-01), Jason
patent: 5266852 (1993-11-01), Shigenari et al.
patent: 5451859 (1995-09-01), Ryat
patent: 5483151 (1996-01-01), Yamashita
patent: 5637993 (1997-06-01), Whitney et al.
patent: 5684393 (1997-11-01), Ryat
patent: 5757232 (1998-05-01), Hosoya

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