Driving circuit for capacitive load and fluid injecting device

Details Driving circuit for capacitive load and fluid injecting device Driving circuit for capacitive load and fluid injecting device

2009-01-30

2010-12-14

Nguyen, Hai L (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S111000

Reexamination Certificate

active

07852127

ABSTRACT:
A driving circuit that drives a capacitive load includes a drive signal generator that generates a drive signal that drives the capacitive load via a transistor pair in response to an analog signal. A power-source voltage generator generates high-voltage and low-voltage power-source voltages and supplies the power-source voltages to collectors of the transistors via a high-voltage output terminal and a low-voltage output terminal. The power-source voltage generator includes multiple power sources connected in parallel and a switch unit that connects the adjacent power sources in series each time the drive signal rises above or falls below a predetermined threshold value. The driving circuit further includes a voltage controlling capacitor connected to the low-voltage output terminal of the power source, and a power recovery unit having a switch unit that recovers a charge accumulated in the voltage controlling capacitor back to the power source via the high-voltage output terminal.

REFERENCES:
patent: 5742193 (1998-04-01), Colli et al.
patent: 5994942 (1999-11-01), Itoh
patent: 6046613 (2000-04-01), Tamura
patent: 6154069 (2000-11-01), Ebihara
patent: 6242970 (2001-06-01), Grant et al.
patent: 6400192 (2002-06-01), Boezen et al.
patent: 6531895 (2003-03-01), Barrett et al.
patent: 6759880 (2004-07-01), Koch et al.
patent: 6836173 (2004-12-01), Yang
patent: 7049863 (2006-05-01), Bechman et al.
patent: 7554305 (2009-06-01), Nunokawa et al.
patent: 2009/0189453 (2009-07-01), Kitazawa et al.
patent: 2006-272907 (2006-10-01), None
U.S. Appl. No. 12/363,451, mailed May 12, 2010, Office Action.

Affiliated with

Also associated with

Rating

Driving circuit for capacitive load and fluid injecting device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Driving circuit for capacitive load and fluid injecting device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driving circuit for capacitive load and fluid injecting device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4174188