Electromagnetic ballast for sequentially starting a...

Electromagnetic discharge apparatus

Electromagnetic discharge apparatus

Electromagnetic discharge appartus with dual power amplifiers

Electromagnetic pulse generator using an electron beam produced

Electron ballast apparatus for gaseous discharge lamps

Electronic ballast

Electronic ballast

Electronic ballast and electronic transformer

Electronic ballast and operating method for a gas discharge...

Electronic ballast circuit for discharge lamps

Electronic ballast circuit for independently increasing the powe

Electronic ballast for a lamp to be operated with iterative...

Electronic ballast for discharge lamps

Electronic ballast for fluorescent lamps

Electronic ballast for fluorescent lighting system including a v

Electronic ballast high power factor for gaseous discharge lamps

Electronic ballast incorporating a clocked switching controller

Electronic ballast of high power factor for compact...

Electronic ballast of the high power factor-constant power type