Device and method for detecting high voltage

Details Device and method for detecting high voltage Device and method for detecting high voltage

2006-09-26

2006-09-26

Vo, Tuyet (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Plural periodic switches or multiple contact periodic switch

C315S291000

Reexamination Certificate

active

07112930

ABSTRACT:
A non-contact voltage detecting method and device are provided. The non-contact voltage detecting device includes a discharge lamp having an excitation voltage and a lighting voltage applied thereon, a boost circuit coupled to the discharge lamp for providing an operation voltage to the discharge lamp and a switch circuit coupled to the boost circuit for providing a periodical high-low signal level to control the boost circuit wherein the discharge lamp flickers if there is a relatively high voltage power nearby, while the discharge lamp is extinguished without the relatively high voltage power nearby. In addition, the device is capable of being an illumination source by increasing an input voltage of the boost circuit when it is not used for detecting the high voltage power.

REFERENCES:
patent: 5083065 (1992-01-01), Sakata et al.
patent: 5751120 (1998-05-01), Zeitler et al.
patent: 6160362 (2000-12-01), Shone et al.

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