Switching control of an operating circuit

Details Switching control of an operating circuit Switching control of an operating circuit

1998-03-06

2000-05-02

Jackson, Stephen W.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307131, H01H 4700

Patent

active

060576111

ABSTRACT:
A circuit arrangement for operating a load, in which in normal operation control energy for activating the switching element or switching elements (T.sub.a, T.sub.b) is obtained from the energy content of the freewheeling current anti-parallel relative to this switching element, and the ON duration is determined by the time constants of control energy storage elements which are assigned to the switching elements, or by the storage time of bipolar transistors.

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