Current mirror type constant current source circuit having less

Details Current mirror type constant current source circuit having less Current mirror type constant current source circuit having less

1991-08-22

1993-01-19

Beha, Jr., William H.

Electricity: power supply or regulation systems

Self-regulating

Using a transformer or inductor as the final control device

323315, 323316, G05F 508, G05F 326

Patent

active

051809664

ABSTRACT:
A current mirror constant current source circuit includes a first current mirror circuit constituted by first and second source-grounded n-channel MOS transistors connected to form a current mirror. A source-drain path of the first MOS transistor forms an input current path of the current mirror circuit, and a source-drain path of the second MOS transistor forms an output current path of the current mirror circuit. A current source is connected between a drain of the first MOS transistor and a high voltage supply line. A third n-channel MOS transistor is connected to have a source and a drain connected to a source and a drain of the first MOS transistor, respectively. A gate of the third MOS transistor is connected to the high voltage supply line. The current source includes a second current mirror circuit formed by two MOS transistors such that the source-drain path of one of the two transistors forms an output current path of the second current mirror circuit. The overall arrangement effectively minimizes the increase of the output current caused by the increase of the voltage supply.

REFERENCES:
patent: 4327321 (1982-04-01), Susuki et al.
patent: 4499416 (1985-02-01), Koike
patent: 4536702 (1985-08-01), Nagano
patent: 4727309 (1988-02-01), Vajdic et al.
patent: 4943737 (1990-07-01), Guo et al.

Affiliated with

Also associated with

Rating

Current mirror type constant current source circuit having less does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Current mirror type constant current source circuit having less , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current mirror type constant current source circuit having less will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-103950