Isolated low power thyristor gate drive circuit

Light bulb electric life extender having a diactriac combination

Light dimmer circuit with control pulse stretching

Load control and switching circuits

Load control circuit and method for achieving reduced...

Load control circuit with timed interruption

Low voltage dimmer with no load protection

Method and a system for producing a power supply voltage for...

Method and apparatus for energizing an electrostatic precipitato

Method and apparatus for power control by frequency spreading

Method and system for controlling output current of a large, low

Method for controlling the dissipation of an electric signal...

Method for low-transient power control of electrical loads and e

Multiple phase switching circuit and heat sink structure

Optically actuated and controlled dimmer type light switch

Output module

Phase control circuit for regulating power

Phase control device

Phase modulated power control

Phase switched power controller