FIELD: pulse engineering; contactless switching devices.
SUBSTANCE: power switch built around MIS transistor 11 incorporating transistors 1, 2 whose base-emitter junctions are shorted out by resistors 5, 6 and collector-emitter ones, by diodes 3, 4 in cut-off direction has collector of transistor 2 connected to gate of MIS transistor 11, emitters of transistors 1, 2, interconnected, and collector of transistor 1, connected to starting lead of secondary winding 9 of transformer 7, finishing lead of this winding being directly connected to source of MIS transistor 11. In addition, one more secondary winding 10 having lower transformation ratio than secondary winding 9 is newly introduced in transformer 7 and connected to bases of transistors 1, 2.
EFFECT: enhanced reliability, efficiency, and noise immunity.
1 cl, 1 dwg
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Authors
Dates
2005-10-27—Published
2004-04-01—Filed