High power factor circuit for powering a load
High power factor conversion circuitry
High power factor power supply
High power inverter pole employing series connected devices...
High power motor drive converter system and modulation control
High power rotary transformer with bus duct assembly
High power ultrasonic motor
High power-factor converter for motor drives and power supplies
High pressure insulating seal for electrical cable system
High quality electrical power distribution system
High rate battery charger
High rate, battery testing apparatus and method
High reliability dual power sources automatic switch circuit...
High resistance ground fault protection
High resistance grounding systems for oil well electrical...
High speed ac failure detector circuit
High speed control of reactive power for voltage...
High speed control of reactive power for voltage...
High speed current reversal system
High speed dc motor