Power supply device and electronic equipment comprising same

Details Power supply device and electronic equipment comprising same Power supply device and electronic equipment comprising same

2007-01-09

2007-01-09

Sterrett, Jeffrey (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S288000, C323S901000

Reexamination Certificate

active

10943238

ABSTRACT:
The present invention provides a power supply device which can suppress a voltage drop of the input power supply immediately after recovery from shutdown status. The power supply device comprises a reference voltage generation circuit for generating reference voltage (VREF), a transistor for feeding disposed between an input terminal (VTT_IN) and an output terminal (VTT output terminal), a transistor for discharging disposed between a ground potential and a VTT output terminal, a first and second differential amplification circuits for controlling the transistors for feeding and discharging respectively by inputting the output power supply voltage (VTT) as feedback and comparing it with VREF, and a shutdown recovery circuit for generating voltage that gradually starts up by a constant current source and a capacitor, wherein the first differential amplification circuit compares VTT with the voltage (SR) of the shutdown recovery circuit instead of VREF, for a certain period from the point of recovery from shutdown status.

REFERENCES:
patent: 4613810 (1986-09-01), Jablonski et al.
patent: 4667144 (1987-05-01), Jones et al.
patent: 4703407 (1987-10-01), Fry et al.
patent: 4964029 (1990-10-01), Severinsky et al.
patent: 6281665 (2001-08-01), Miyaba et al.
patent: 6650094 (2003-11-01), Feldtkeller
patent: 6841977 (2005-01-01), Huang et al.
patent: 6969977 (2005-11-01), Smith
patent: 7023187 (2006-04-01), Shearon et al.
patent: 7026801 (2006-04-01), Fowler et al.
patent: 7034586 (2006-04-01), Mehas et al.
patent: 2001-195884 (2001-07-01), None

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