Integrated tuning capacitor network and heat sink for an electro

Details Integrated tuning capacitor network and heat sink for an electro Integrated tuning capacitor network and heat sink for an electro

1990-01-30

1991-09-10

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

315344, H05B 4116

Patent

active

050476920

ABSTRACT:
A ballast for an electrodeless high intensity discharge lamp comprises a Class-D power amplifier including an integrated tuning capacitor network and heat sink. A series blocking/tuning capacitor and a parallel tuning capacitor are integrated by sharing a common capacitor plate. The metal plates of the parallel tuning capacitor also comprise heat sink planes to remove excess heat from the excitation coil of the lamp. Heat sink fins are affixed to the plates of the parallel capacitor. Efficiency is maximized by matching the impedance of the ballast load network.

REFERENCES:
patent: 4390813 (1983-01-01), Stanley
patent: 4415838 (1983-11-01), Houkes
patent: 4748383 (1988-05-01), Houkes
patent: 4783615 (1988-11-01), Dakin
patent: 4810938 (1989-03-01), Johnson et al.
patent: 4818916 (1989-04-01), Morrisroe
patent: 4888528 (1989-12-01), Byszewski
patent: 4894591 (1990-01-01), Witting
patent: 4910439 (1990-03-01), El-Hamamsy

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