Supply circuit for discharge lamps with means for preheating the electrodes
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United States of America Patent
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Sep 1, 1998
Grant Date -
N/A
app pub date -
Jul 2, 1996
filing date -
Jul 5, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The circuit for firing and supplying a discharge lamp, includes: a load circuit (10), with at least one discharge lamp (L) and a voltage supply for supplying a discharge lamp, a subportion of the circuit is in parallel with the lamp (L). This subportion includes at least one arrangement of capacitors (17, 21) and an inductive impedance which can be varied in a controllable manner in order to modify the value of the total impedance in parallel with the lamp.
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