Ballast striker circuit
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United States of America Patent
Stats
-
Oct 11, 1988
Grant Date -
N/A
app pub date -
Jun 22, 1987
filing date -
Jun 22, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A striker circuit is provided for high intensity discharge lamps that uses a clamping circuit applied to the AC line current to generate a clamped voltage differential for striking the lamp. A clamped voltage differential is generated at fixed intervals until the lamp is struck. The emission of the clamped voltage differentials is stopped when the current flowing through the lamp is above a fixed value. The clamped voltage differential is reclamped if it drifts from its desired, clamped waveform.
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Cited Art Landscape
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