Power supply saving system for an electronic device

Power supply with improved inrush circuit for limiting inrush cu

Power supply with reduced switching losses

Power supplying apparatus

Power supplying device for plural car elevator

Power transition circuit

Precision envelope detector and linear rectifier circuitry

Precision fullwave rectifier

Precision rectifier system with differential input and different

Precommutated current source inverter

Process and system for producing photovoltaic power

Process of pulse duration modulation of a multi-phase converter

Proportional transistor base drive circuit for use in power conv

Propulsion motor control apparatus and method

Protected transformerless AC to DC power converter

Pulse electric power unit

Pulse width modulated inverter system for driving single phase a

Pulse width modulation inverter

Pulse width modulation power transmission system

Pulse-type electric supply for a load equipped with means for di