Apparatus for switching an inductive load

Details Apparatus for switching an inductive load Apparatus for switching an inductive load

1997-07-02

1998-10-27

Gaffin, Jeffrey A.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307112, 307139, 327313, 327321, H01H 4700, H03K 508

Patent

active

058281410

ABSTRACT:
An apparatus for switching an inductive load includes a MOSFET switch and provides for limiting a voltage across the load during switching-off of the latter. One or two clamping circuits are used without zener diodes and with different, temperature-independent clamping voltages for the purpose of rapid demagnetization of the load in a constant demagnetization time.

REFERENCES:
patent: 5266840 (1993-11-01), Leipold et al.
patent: 5272399 (1993-12-01), Tihanyi et al.
patent: 5672917 (1997-09-01), Nakano
patent: 5744878 (1998-04-01), Wachter et al.

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