Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2005-09-28
2009-12-01
Riley, Shawn (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C307S150000, C323S901000
Reexamination Certificate
active
07626371
ABSTRACT:
A step-like operation command signal is inputted into a time-constant circuit to generate a gradually rising operation command input voltage, which is supplied to a power supply unit. Enablement and disablement of the power supply unit is controlled on the basis of the operational command input voltage. When the operation command input voltage exceeds a first predetermined voltage level, a detection signal and a reference voltage are generated, and at the same time an error amplification circuit is enabled. On the other hand, when the operation command input voltage exceeds a second predetermined voltage level, a level shift voltage for initiating a soft start is generated, which enables execution of a soft start of the power supply unit without increasing its consumption current and reduction of the number of its terminals.
REFERENCES:
patent: 5994950 (1999-11-01), Ochi
patent: 6204646 (2001-03-01), Hiramatsu et al.
patent: 6236194 (2001-05-01), Manabe et al.
patent: 6525596 (2003-02-01), Hosono et al.
patent: 6608520 (2003-08-01), Miyazaki
patent: 6661279 (2003-12-01), Yabe
patent: 6828766 (2004-12-01), Corva et al.
patent: 6969977 (2005-11-01), Smith
patent: RE39374 (2006-11-01), Manabe et al.
patent: 2001/0022527 (2001-09-01), Hosono et al.
patent: 0949739 (1999-10-01), None
patent: 62-75725 (1987-04-01), None
patent: 02-070264 (1990-03-01), None
patent: 04-040313 (1992-04-01), None
patent: 07-336999 (1995-12-01), None
patent: 09-062376 (1997-03-01), None
patent: 10-150152 (1998-06-01), None
patent: 10-232721 (1998-09-01), None
patent: 11-353040 (1999-12-01), None
patent: 2000-357018 (2000-12-01), None
patent: 2001-084043 (2001-03-01), None
patent: 2001-117650 (2001-04-01), None
patent: 2001-166837 (2001-06-01), None
patent: 2002-373942 (2002-12-01), None
patent: 2003-005847 (2003-01-01), None
patent: 2003-216247 (2003-07-01), None
patent: 2003-224967 (2003-08-01), None
patent: 2006/048990 (2006-05-01), None
patent: 2006/049109 (2006-05-01), None
patent: 2006/049110 (2006-05-01), None
Official communication issued in the International Application No. PCT/JP2005/018400, mailed on Dec. 27, 2005.
Official communication issued in the International Application No. PCT/JP2005/019950, mailed on Jan. 24, 2006.
Official communication issued in the International Application No. PCT/JP2005/019954, mailed on Jan. 24, 2006.
Taichi Hoshino et al.; “Power Supply Unit and Portable Device”; U.S. Appl. No. 11/718,219, filed Apr. 27, 2007.
Taichi Hoshino et al.; “Power Supply Unit and Portable Device”; U.S. Appl. No. 11/718,220, filed Apr. 27, 2007.
Hoshino Taichi
Kikuchi Hiroki
Keating & Bennett LLP
Riley Shawn
Rohm & Co., Ltd.
LandOfFree
Power supply unit and portable 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 Power supply unit and portable device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power supply unit and portable device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4100010