Shunt voltage regulator

Signal compressors and expanders

Signal processing arrangement

Single phase power control circuit

Solid state current limit circuit

Solid state proximity switch

Solid state weld timer

Stabilized current output circuit

Stabilized power supplies

Stabilized power supply circuit

Stabilized voltage regulator circuit, particularly for use with

Stabilized voltage source having a series regulator on the alter

Staggered stage shunt regulator

Static controller for power factor correction and adaptive filte

Static current limiting switch with soft forced commutation

Static reactive power generating apparatus

Static switch controller synchronized with a passage to zero of

Static VAR generator compensating control circuit and method for

Static VAR generator with discrete capacitive current levels

Static VAR generator with non-linear frequency dependent dynamic