Improved current mirror for sensing current

Details Improved current mirror for sensing current Improved current mirror for sensing current

1991-01-31

1992-07-28

Stephan, Steven L.

Electricity: power supply or regulation systems

Self-regulating

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

323315, G05F 316

Patent

active

051343584

ABSTRACT:
A technique is described for improving the sampled current accuracy in current mirror circuits such as are often used to monitor the current output to a load. A reference voltage is established to feedback the load voltage conditions at the output to the current reference circuitry, thereby greatly reducing the error in the reference current over that which is produced by prior art circuits. The technique is shown aas applied to a current limiting circuit for driving an output load. An alternative embodiment is also disclosed.

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patent: 4827207 (1989-05-01), Chieli
patent: 4882533 (1989-11-01), Kelley
patent: 5008586 (1991-04-01), Miyazaki et al.

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