Power supply turn-on and turn-off transient elimination circuits

Power supply with complementary switching of power to main and a

Power supply with current limiting

Power supply with means to reduce on and off switching times of

Power switching circuit having a Darlington connected transistor

Power transfer apparatus

Precision current source

Precision current-source arrangement

Pressure detecting apparatus having linear output characteristic

Programmable AC/DC power supply

Programmable alternating current switch

Programmable shunt voltage regulator circuit

Protective circuit for transistor amplifier

Protective circuit utilizing multilevel power supply output

Proximity actuated power control variable as to sense and magnit

Pulse controlled potentiometer

Pulse energy suppression network

Pulse width modulated voltage regulator-converter/power converte

PWM controller for resonant converters