Control circuit arrangement for limiting output current in power

Details Control circuit arrangement for limiting output current in power Control circuit arrangement for limiting output current in power

1998-04-03

1999-11-30

Riley, Shawn

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

H02M 3335

Patent

active

059953861

ABSTRACT:
A current limiting circuit for a power switching transistor, the current limiting circuit incorporating a DC modulator to control the conducting
on-conducting state of the switching transistor, with an input signal generated and supplied to the modulator (and thus controlling a modulator DC bias output signal and therefore the conducting
on-conducting state of the switching transistor) comprised of two components: a first component which controls the modulator state based upon limiting maximum transistor current when a DC supply voltage is at a nominal design value, and a second component which dynamically adjusts the value of the modulator input signal when values of the DC supply voltage are other than the nominal design value.

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