Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2008-06-12
2010-06-15
Riley, Shawn (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S271000, C323S272000
Reexamination Certificate
active
07737672
ABSTRACT:
To provide a power supply apparatus which realizes a high-speed response, a stable operation, and a low output ripple with low power consumption. The first stage switching regulator receives an input voltage and forms a first voltage. The second stage switching regulator receives the first voltage and forms a second voltage. The second stage switching regulator includes an N-phase (N is two or more) switching regulator, and the first voltage is set to be N times a target value of the second voltage. The input voltage is set to be higher than the first voltage.
REFERENCES:
patent: 6784644 (2004-08-01), Xu et al.
patent: 7173400 (2007-02-01), Morioka
patent: 2005-168106 (2005-06-01), None
Mattingly & Malur, P.C.
Renesas Technology Corp.
Riley Shawn
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