Electronic high frequency controlled device for operating gas di

Details Electronic high frequency controlled device for operating gas di Electronic high frequency controlled device for operating gas di

1992-04-16

1993-03-09

Dzierzynski, Paul M.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

315DIG4, 315DIG5, 315299, 315219, H05B 4136

Patent

active

051928973

ABSTRACT:
A high frequency electronic ballast which comprises a variable frequency oscillator (1) having its frequency controlled by inputs (10 to 15). The oscillator (1) providing complementary outputs (16, 17) which controls an inverter (4) via a driver circuit (3). The inverter output is a source for a transformer or choke (5) which directly drives a gas discharge lamp (6). In this way the frequency of operation and hence the illumination of the lamp (6) can be changed by changing the driver (3) frequency by direct control (10 to 15) of the oscillator (1) and the lamp voltage is maintained substantially constant while reducing its current flow.

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patent: 4523131 (1985-06-01), Zansky
patent: 4585974 (1986-04-01), Stupp et al.

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