Electronic circuits

Details Electronic circuits Electronic circuits

2006-04-25

2006-04-25

Ton, My-Trang Nu (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S494000

Reexamination Certificate

active

07034582

ABSTRACT:
A high voltage AC power supply circuit for a capacitive load CL, such as an electroluminescent lamp, includes a low voltage DC supply, an inductor L and a FET S in series. The FET S can be pulsed so that the inductor L generates a voltage to charge the capacitive load CLvia an H-bridge H, which is in parallel with the FET S. A diode D prevents current discharging from the capacitive load CLwhile the FET S is closed. The total capacitance downstream of the diode D and in parallel with the capacitive load CLis less than the capacitive load CL, so that when the polarity of the H-bridge is reversed, the voltage across the H-bridge collapses to earth and the capacitive load CLis discharged via the low voltage DC supply. The circuits which a employ a large smoothing capacitor in parallel with the H-bridge.

REFERENCES:
patent: 5808884 (1998-09-01), Teggatz et al.
patent: 5821701 (1998-10-01), Teggatz et al.
patent: 5861719 (1999-01-01), Koskowich et al.
patent: 5982104 (1999-11-01), Sasaki et al.
patent: 5982105 (1999-11-01), Masters
patent: 6011382 (2000-01-01), Littlefield et al.
patent: 6038153 (2000-03-01), Andersson et al.
patent: 6081075 (2000-06-01), Littlefield
patent: 6087863 (2000-07-01), Aflatouni
patent: 6091164 (2000-07-01), Buell
patent: 6175191 (2001-01-01), Yamazaki
patent: 6297597 (2001-10-01), Buell
patent: 6320323 (2001-11-01), Buell et al.
patent: 6462485 (2002-10-01), Kimball
patent: 6597123 (2003-07-01), Buell et al.
patent: 6674243 (2004-01-01), Kato
patent: 6693387 (2004-02-01), Wood
patent: 0782373 (1997-07-01), None
patent: 0971565 (2000-01-01), None
patent: WO 99/55121 (1999-10-01), None
patent: WO 00/72638 (2000-11-01), None

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