AC to DC inverters that are formed from electronic switches, such as MOSFETs, that are controlled by gating pulses obtained from comparators. The comparators compare a varying signal against two closely spaced reference voltages so as to provide gating pulses with delays needed to prevent shoot-through in the electronic switches.
This application is a divisional of U.S. patent application Ser. No. 10/016,678, filed Dec. 17, 2001, now U.S. Pat. No. 6,687,142 issued Feb. 3, 2004, incorporated herein by reference.