Electricity: power supply or regulation systems – Output level responsive – Using a transformer or inductor as the final control device
Reexamination Certificate
2005-02-08
2008-12-16
Patel, Rajnikant B (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a transformer or inductor as the final control device
C323S225000, C323S285000
Reexamination Certificate
active
07466112
ABSTRACT:
A switched regulator circuit provides step-up and step-down operation in which the level of the input voltage can be greater, equal to, or less than a preset controlled output voltage. A four switch arrangement or two switch arrangement provides buck, boost, and buck-boost regulation under variable frequency valley-peak current mode control. A single sense resistor may be utilized for sensing inductor current during each duty cycle.
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Flatness Randy G.
Zhou Xunwei
Linear Technology Corporation
McDermott Will & Emery LLP
Patel Rajnikant B
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