Resistorless, precision current source

Details Resistorless, precision current source Resistorless, precision current source

1987-04-13

1988-12-20

Salce, Patrick R.

Electricity: power supply or regulation systems

Self-regulating

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

G05F 316

Patent

active

047927500

ABSTRACT:
The present invention provides a precision current source wherein a reference current level is established by the inter-dependent operation of three current stages. The first stage provides first and second current paths and functions to mirror the current level through the first and second current paths. A second stage, coupled to the first and second current paths, defines a first current/voltage relationship at respective points in the first and second current paths. A third stage, also coupled to the first and second current paths, defines a second current/voltage relationship again at the respective points in the first and second current paths. In accordance with the present invention, the first and second current/voltage relationships are chosen to be mutually solvable for a discrete, non-zero pairing of voltage and current levels, thereby establishing a reference current level at the defined current set point.

REFERENCES:
patent: 4029974 (1977-06-01), Brokaw
patent: 4166971 (1979-09-01), Schneider
patent: 4287439 (1981-09-01), Leuschner
patent: 4302718 (1981-11-01), Schade
patent: 4697154 (1987-09-01), Kousaka et al.

Affiliated with

Also associated with

Rating

Resistorless, precision current source does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Resistorless, precision current source, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resistorless, precision current source will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1911285