Current limiting device

Details Current limiting device Current limiting device

1998-08-04

2000-04-11

Leja, Ronald W.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Impedance insertion

361 939, H02H 900

Patent

active

060494476

ABSTRACT:
A device for limiting overload currents using a semiconductor element with at least one controllable semiconductor having an electron source (source), an electron acceptor (drain) and a control electrode (gate) controlling the electron flow, which device has characteristic curves typical of a field-effect transistor (FET). In the case of alternating voltage, two FETs are connected in series, in complementary fashion. Arrangement is provided for internally obtaining the control voltage required for driving the semiconductor element from at least part of the load current and/or from at least part of the voltage drop across the semiconductor element.

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