Ringing signal supply
Ringing signal supply
Rotary dynamoelectric machine having high-resistance rotor
Rotary phase converter
Rotary phase converter
Rotary phase converter having circuity for switching windings to
Rotary phase generator and system
Semiconductor integrated circuit with selectable power...
Semiconductor stack
Series capacitor voltage multiplier circuit with top connected r
Sine wave ring generator
Single phase to three phase dynamoelectric converter
Supply circuit for an electronic circuit connected to an...
Synchronized receiver power system
System and method for reducing power losses by gating an active
Transistor bridge voltage rectifier circuit
Transistor failure selection circuit and structure for ease of m
Two terminal axial lead suppressor and diode bridge device
Voltage and current controlled converter for telephone ringing