H - Electricity – 02 – H
Patent
H - Electricity
02
H
H02H 3/20 (2006.01) F21V 25/00 (2006.01) H02H 7/10 (2006.01) H02H 9/04 (2006.01)
Patent
CA 2477600
The present invention relates to a circuit arrangement for protection against impulse voltages of at least one unit to be supplied from a voltage network, having an input with a first and a second input connection to which it is possible to couple a voltage that is loaded with an impulse voltage and corresponds to the system voltage or has been derived from the system voltage, an output with a first and a second output connection to which the unit to be protected can be coupled, and a protective circuit that is coupled between the first and second input or output connection, the protective circuit having a limiting apparatus that is designed to limit the voltage present across it to a prescribable value, the protective circuit further comprising a switch apparatus (10) that comprises a switching element (10) and a drive circuit for the switching element (10), the switching element (10) being designed as a semi-conductor component, and the switch apparatus (10) being arranged in series with the limiting apparatus (12) and being designed to switch on given a prescribable first trigger criterion, and to switch off given a prescribable second trigger criterion.
Storm Arwed
Werni Horst
Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh
Smart & Biggar
LandOfFree
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