Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2006-06-30
2009-11-24
Tso, Edward (Department: 2858)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S269000, C323S272000, C307S082000, C307S130000
Reexamination Certificate
active
07622901
ABSTRACT:
A system power supply apparatus includes a first constant voltage circuit that generates and increases a voltage up to a first constant level when receiving a first control signal. A second constant voltage circuit is provided to generate and increase a voltage up to a second constant level upon receiving a second control signal. The second constant voltage circuit generates and maintains a voltage at a third constant level lower than the second constant level for a prescribed time period upon receiving a third control signal. A control circuit is provided to input the third control signal to the second constant voltage circuit when the system power supply apparatus starts up.
REFERENCES:
patent: 3858104 (1974-12-01), Grob
patent: 5210504 (1993-05-01), Yagita et al.
patent: 5969512 (1999-10-01), Matsuyama
patent: 5977755 (1999-11-01), Miki et al.
patent: 6411072 (2002-06-01), Feldman
patent: 2004/0105198 (2004-06-01), Fujii
patent: 2001-142548 (2001-05-01), None
patent: 3673458 (2005-04-01), None
Diao M'Baye
Dickstein & Shapiro LLP
Ricoh & Company, Ltd.
Tso Edward
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