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G05F 1/44 (2006.01) H02M 3/155 (2006.01) H03K 17/00 (2006.01) H03K 17/06 (2006.01) H03K 17/60 (2006.01)
Patent
CA 1210808
ABSTRACT OF THE DISCLOSURE A potential free actuation circuit for a pulse duration controlled electronic power switch having two major electrodes, the circuit including: a driver stage having a control input and two major electrodes; a pulse transformer having a primary winding and a secondary winding; a pulse duration modulation stage having an output connected to the primary winding; a first rectifier element connected between the secondary winding and the control input of the driver stage; a second rectifier element connected between the side of the first element which is remote from the secondary winding and a major electrode of the driver stage; and a first charging capacitor connected between the side of the second rectifier element facing away from the first rectifier element and a major electrode of the power switch, with the first and second rectifier elements being poled in the same direction with respect to current flow through the first element. - 1 -
435315
Ohms Franz
Urbanski Gunter
Ant Nachrichtentechnik G.m.b.h.
Fetherstonhaugh & Co.
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