Variable frequency, zero voltage switching, quasi-resonant conve

Variable high-voltage generating circuit

Variable inductance current limiting reactor

Variable input voltage regulator circuit

Variable reactive element in a resonant converter circuit

Variable resonance regulator for power supply

Variable speed a-c drive

Variable speed constant frequency power converter with two modes

Variable speed constant frequency power system with boost conver

Variable speed drive

Variable speed, constant frequency generating system with input

Variable transformer with slidable contactor

Variable voltage direct current power supply and motor speed con

Variable wave-form converter

Variable-frequency converter with constant programmed delay

Variable-frequency flyback converter with synchronous...

Variable-frequency variable-input-voltage converter with minimum

Variable-input-voltage converter with delay proportional to V .s

Variable-mode converter control circuit and half-bridge...

Variable-speed wind power system with improved energy...