Constant power switching power supply

Details Constant power switching power supply Constant power switching power supply

1982-07-06

1984-04-10

Dixon, Harold

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Periodic-type current and/or voltage regulator in the supply...

315307, G05F 100, H05B 4116

Patent

active

044423829

ABSTRACT:
A power supply for a gaseous discharge lamp in which power adjustments are made automatically to insure that rated lamp power is delivered regardless of changes in lamp impedance or line voltage which may occur. A high D.C. voltage is delivered to a step down low hysteresis transformer and electronic switching is provided to obtain a high frequency pulsed flow to the primary of the transformer. Sawtooth waves are generated and peak current is utilized to regulate closely power input to the transformer. A feature is the use of a programming resistor to select the desired power level for the particular gas discharge lamp.

REFERENCES:
patent: 3473084 (1969-10-01), Dodge
patent: 4037148 (1977-07-01), Owens et al.
patent: 4051412 (1977-09-01), Knoble
patent: 4156166 (1979-05-01), Shapiro

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