Single transistor electronic ballast

Details Single transistor electronic ballast Single transistor electronic ballast

1994-07-20

1995-09-26

Pascal, Robert J.

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Periodic switch in the primary circuit of the supply...

315224, 315278, 315DIG7, H05B 4100

Patent

active

054536650

ABSTRACT:
An electronic ballast 10 includes a single transistor 16 that supports both power factor correction and inverter functionality. To assist in controlling voltages across this transistor 16 during all phases of operation, two dual function diodes 21 and 19 are provided.

REFERENCES:
patent: 3973165 (1976-08-01), Hester
patent: 4958109 (1990-09-01), Naum
patent: 5138236 (1992-08-01), Bobel et al.
patent: 5144204 (1992-09-01), Nerone et al.

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