Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Patent
1999-09-27
2000-09-26
Philogene, Haissa
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
3151691, 345204, 345214, G09G 310
Patent
active
061246778
ABSTRACT:
A method for testing output connections of at least one driver circuit that drives a plasma display panel. According to the method, at least one output of the driver circuit is switched to a high level for a predetermined time period. The output of the driver circuit is switched to a low level, and the time to discharge the output of the driver circuit with a constant discharge current is measured. It is determined whether a capacitive load is connected to the output of the driver circuit based on the measured time to discharge. In one preferred method, these steps are repeated for each of the outputs of the driver circuit. A driver circuit for driving a plasma display panel is also provided. The driver circuit includes driver output stages, and means for selectively sinking a constant discharge current from the output of at least one of the driver output stages to ground. Additionally, the driver circuit includes means for producing a measuring logic pulse whose duration is a function of a time required to discharge the output, and means for determining whether a capacitive load is connected to the output based on the measuring logic pulse.
REFERENCES:
patent: 4384287 (1983-05-01), Sakuma
patent: 4492957 (1985-01-01), Marentic
patent: 4496879 (1985-01-01), Suste
patent: 4859870 (1989-08-01), Wong et al.
patent: 5428300 (1995-06-01), Takahashi et al.
patent: 5656893 (1997-08-01), Shino et al.
patent: 5870409 (1999-02-01), Yach et al.
Benoit Eric
Lardeau Celine
Troussel Gilles
Bongini Stephen C.
Galanthay Theodore E.
Philogene Haissa
STMicroelectronics S.A.
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