Valley-fill power factor correction circuit

Varactor controlled fixed frequency VHF DC-DC converter

Varactor frequency multiplier and switching circuit

Variable bandwith control for power factor correction

Variable charge pumping DC-to-DC converter

Variable frequency controlled zero-voltage switching single-ende

Variable frequency controller

Variable frequency resonant converter

Variable frequency soft switching power supply with reduced nois

Variable frequency, variable voltage power supply

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