Solar powered lamp having an auxiliary startup device

Electric lamp and discharge devices: systems – Pulsating or a.c. supply – With power factor control device

Reexamination Certificate

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Details

C315S2090SC, C315S291000, C315S226000, C315SDIG002

Reexamination Certificate

active

07098604

ABSTRACT:
Disclosed is a solar powered lamp adopting a cold-cathode fluorescent lamp and an auxiliary startup device which can improve the efficiency of the voltaic-photo transformation when lighting the cold-cathode fluorescent lamp. The device comprises a direct current power unit, a DC/AC inverter circuit for generating a high voltage alternating current from the DC voltage to light a CCFL; and an auxiliary startup circuit disposed between the DC power supply unit and the DC/AC inverter circuit for generating across the input terminals of the DC/AC inverter circuit a voltage of about twice of the DC voltage output from the DC power supply unit.

REFERENCES:
patent: 5155668 (1992-10-01), Tanner et al.
patent: 5204586 (1993-04-01), Moore
patent: 5235254 (1993-08-01), Ho
patent: 5564816 (1996-10-01), Arcadia et al.
patent: 6135620 (2000-10-01), Marsh
patent: 6693396 (2004-02-01), Hsu
patent: 6864644 (2005-03-01), Kernahan

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