Off-line switching mode power supply

Off-line switching power supply for generating negative...

Omni-wave dc/ac transformer: hysteresis loop free, variable,...

On-load tap changer

Ondulateurs a commutation forcee

One-way energy transfer circuit

Operational rectifier

Operational rectifier and bias generator

Opposed current power converter

Optical gate signal generating apparatus and thyristor...

Optical radiation frequency converter and method

Optical repeater and regulated current feeding system for...

Optimized 18-pulse type ac/dc, or dc/ac, converter system

Oscillator circuit for providing a failsafe direct current...

Oscillator voltage regulator

Oscillatorless dc-dc power converter

Output filter having swinging inductor

Output power port management control

Overvoltage protection circuit using photoswitches

Overvoltage protector for rectifier/inverter bridges