Cold cathode tube power supply

Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure

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Details

H01J 2316

Patent

active

058149384

ABSTRACT:
A power supply for a cold cathode tube has a high voltage module coupled directly to the cold cathode tube, and a power control module that provides a power control signal to the high voltage module via low voltage wiring. The power control module has a circuit that compensates for negative resistance of the ionized gas within the cold cathode tube by adjusting a frequency of the power control signal. The power control module also receives a return of from the cold cathode tube, and varies an illumination intensity of the cold cathode tube using a burst modulation technique, and provides shutdown in the event of a ground fault.

REFERENCES:
patent: Re32904 (1989-04-01), Pacholok
patent: 1654350 (1927-12-01), Shelton
patent: 1804525 (1931-05-01), Cadieux
patent: 3550298 (1970-12-01), O'Neill
patent: 3862411 (1975-01-01), Persson
patent: 3919798 (1975-11-01), Mutzhas
patent: 3965597 (1976-06-01), Noellert
patent: 4149113 (1979-04-01), Sammis
patent: 4277726 (1981-07-01), Burke
patent: 4286193 (1981-08-01), King, Jr. et al.
patent: 4370600 (1983-01-01), Zansky
patent: 4467248 (1984-08-01), Watanabe et al.
patent: 4488090 (1984-12-01), Hancock
patent: 4563719 (1986-01-01), Nilssen
patent: 5001400 (1991-03-01), Nilssen
patent: 5004955 (1991-04-01), Nilssen
patent: 5051666 (1991-09-01), Jensen
patent: 5056125 (1991-10-01), Beland
patent: 5387845 (1995-02-01), Nilssen
patent: 5394065 (1995-02-01), Rimmer
patent: 5424893 (1995-06-01), Francis, Jr. et al.
patent: 5428266 (1995-06-01), Nilssen
patent: 5465010 (1995-11-01), Rimmer
patent: 5489825 (1996-02-01), Rimmer
patent: 5530321 (1996-06-01), Sears

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