Electronic ballast with low frequency AC to AC converter

A gas discharge lamp is started with a high frequency AC signal from an oscillator and then operates on a low frequency AC signal provided by an AC to AC converter synchronously with the AC supply line. The low voltage switching devices of the converter are protected from the high voltages of the hi...

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Bibliographische Detailangaben
Hauptverfasser: ROBERTS, VICTOR D, ITANI, ABDALLAH M
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A gas discharge lamp is started with a high frequency AC signal from an oscillator and then operates on a low frequency AC signal provided by an AC to AC converter synchronously with the AC supply line. The low voltage switching devices of the converter are protected from the high voltages of the high frequency oscillator by locking the converter in a single phase during starting.