Dual voltage ballast
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United States of America Patent
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-
Mar 19, 1991
Grant Date -
N/A
app pub date -
Apr 10, 1989
filing date -
Apr 10, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In one form of the multiple voltage ballast system described herein, each of the primary coils has different wire sizes with the largest diameter wire being utilized in the 120 V primary coil. In another form of the invention, a pair of 120 V primary coils are connected in series with a 37 V primary coil so that the ballast may function as a 277 V ballast. The primary coils are also electrically connected so that the ballast may be used as a 120 V ballast.
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