Keep-alive for power stage with multiple switch nodes

Details Keep-alive for power stage with multiple switch nodes Keep-alive for power stage with multiple switch nodes

2008-10-21

2010-12-07

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

With voltage multiplication means

Reexamination Certificate

active

07848125

ABSTRACT:
A keep alive circuit for recharging bootstrap capacitors in multiple totem-pole switching power stages using N-channel field effect transistor or NPN bipolar junction transistor switching devices during 100% or substantially 100% duty cycle operation of one of the totem pole pairs.

REFERENCES:
patent: 5305338 (1994-04-01), Wakata et al.
patent: 5436824 (1995-07-01), Royner et al.
patent: 7019474 (2006-03-01), Rice et al.
patent: 7385445 (2008-06-01), Wright
patent: 2005/0102128 (2005-05-01), Wilhelm
patent: 2006/0244393 (2006-11-01), Zane
patent: 2008/0191679 (2008-08-01), Williams
patent: 2008/0211318 (2008-09-01), Wang

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