Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition
Patent
1995-11-13
1999-11-09
Shingleton, Michael B
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Silicon controlled rectifier ignition
315219, 315205, 315DIG7, 331113A, H05B 3702
Patent
active
059821060
ABSTRACT:
An energy conversion device has a self-oscillating transistorized L-C series-resonant half-bridge inverter circuit having alternating resonant inductor current and adapted to deliver a high frequency signal to an effective load coupled effectively in parallel with the capacitor. The device includes a DC voltage supply able to provide DC voltage between the DC terminals; an artificial load arrangement connected to the DC terminals and operable to effectively couple itself in parallel with the capacitor; a load-coupling transformer; and a saturable feedback transformer operable to sense the alternating resonant inductor current and to control and adjust the frequency of the oscillation in proportion to the effective load applied effectively in parallel with the capacitor.
REFERENCES:
patent: 4392087 (1983-07-01), Zansky
patent: 4855860 (1989-08-01), Nilssen
patent: 5130610 (1992-07-01), Kakitani
Mattson Brian M.
Shingleton Michael B
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