Dimmer circuit for high intensity discharge lamp

Details Dimmer circuit for high intensity discharge lamp Dimmer circuit for high intensity discharge lamp

1984-12-19

1986-09-16

Dixon, Harold

Electric lamp and discharge devices: systems

Plural power supplies

Diverse-type current supplies

315170, 315173, 315194, 315244, 315DIG4, 315DIG5, H05B 3700

Patent

active

046124780

ABSTRACT:
A lamp dimmer circuit for a high intensity discharge lamp includes an auto transformer, a power factor correction capacitor, a reactor ballast, a solid state phase control current module, a dimming control, a high frequency power supply, a coupling transformer, a high frequency by pass capacitor and a lamp. The high frequency low current source formed by the high frequency by pass capacitor, coupling transformer and high frequency power supply act to maintain the lamp arc even with variations in line voltage.

REFERENCES:
patent: 2975331 (1961-03-01), Diaz et al.
patent: 3309567 (1967-03-01), Flieder et al.
patent: 3323015 (1967-05-01), Everest
patent: 4362971 (1982-12-01), Sloan
patent: 4376911 (1983-03-01), Kaneda et al.
patent: 4410837 (1983-10-01), Suzuki et al.

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