Lamp supply circuit

Details Lamp supply circuit Lamp supply circuit

1990-03-13

1991-12-03

Mis, David

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

315205, 315210, 315240, 315DIG5, H05B 4124

Patent

active

050702769

ABSTRACT:
A supply circuit is proposed for high-frequency operation of one low-pressure discharge lamp or several low-pressure discharge lamps connected in parallel. The switching unit includes--a power rectifier followed by an active harmonic oscillation filter and a filter capacitor and a single-phase high-frequency generator comprising a switching transistor, a switching inductance and an oscillating capacitor, said generator being supplied from said filter capacitor and being decoupled from the power supply by means of two diodes.

REFERENCES:
patent: 4564897 (1986-01-01), Okamoto et al.
patent: 4904903 (1990-02-01), Pacholok

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