Power switching circuit with current sharing capability

Details Power switching circuit with current sharing capability Power switching circuit with current sharing capability

2006-03-21

2006-03-21

Han, Jessica (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S277000, C363S050000

Reexamination Certificate

active

07015681

ABSTRACT:
A power switching circuit comprising a first power switching device the first power switching device having a control electrode and two main current carrying electrodes, a sense circuit for providing a signal proportional to the current through the first power switching device and an active clamp circuit connected to said control electrode of said first power switching device, wherein said active clamp circuit provides a variable clamp voltage between one of the main electrodes of the first power switching device and the control electrode when the current in the first power switching device exceeds a threshold level the variable clamp voltage being related to current through the first power switching device.

REFERENCES:
patent: 5428523 (1995-06-01), McDonnal
patent: 5530340 (1996-06-01), Hayakawa et al.
patent: 6879501 (2005-04-01), Mori

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