H - Electricity – 05 – B
Patent
H - Electricity
05
B
315/59
H05B 41/36 (2006.01) G05F 1/455 (2006.01) H05B 37/02 (2006.01) H05B 41/392 (2006.01)
Patent
CA 1198155
PHASE-CONTROLLED BALLAST HAVING SHIFTING CONTROL ABSTRACT OF THE DISCLOSURE A phase-controlled ballast for a high intensity discharge lamp receives a first reference signal which increases with lamp current and a second reference signal which increases with line voltage. The reference signals are supplied to a diode gate which functions to pass only the greater reference signal to the control circuit of an electronic switch. A low start current characteristic together with a rainbow curve operating characteristic are achieved.
420000
Company General Electric
Eckersley Raymond A.
LandOfFree
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