Circuit arrangement for contactless switchover of operation para
Circuit arrangement for power control
Circuit for generating a sinusoidal synchronization voltage for
Circuitry and method for controlling power to fastener machine s
Constant power supply unit of electric heating apparatus
Control circuit for heat fixing device for use in an image formi
Control circuit for holding constant the operating voltage of an
Current inrush limiting apparatus
Electric a.c power switch controller and d.c. power supply metho
Electrical balancing control for three-phase loads
Electrical power regulating apparatus and method
Electronic control for series circuits
High efficiency, low voltage adapter apparatus and method
Input voltage compensated, microprocessor controlled, power regu
Input waveform follow-up AC power source system
Linear motor control with triac and phase locked loop
Method and circuit to improve output voltage regulation and nois
Method of controlling an operation of a switch power converter
Phase control device which compensates for input variations
Phase control switch with reduced heat dissipating RFI inductor