Electricity: power supply or regulation systems – Output level responsive – Using a transformer or inductor as the final control device
Reexamination Certificate
2008-09-18
2011-10-11
Patel, Rajnikant (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a transformer or inductor as the final control device
C363S021080
Reexamination Certificate
active
08035358
ABSTRACT:
A voltage regulator is provided that includes a plurality of buck-boost transformers each having primary and secondary windings. The secondary windings of the transformers are electrically disposed in series between a source and a load. Each transformer is controlled by a plurality of control switches configured to control the voltage across the primary winding of a corresponding transformer. A controller monitors the output voltage and generates control signals for the switches. The transformers generate different voltage level changes in between the source and load and the voltages across the primary windings are capable of assuming opposite polarities to enable scaling of resolution and range. The voltage regulator efficiently regulates power with relatively few or no moving parts and also partially protects the power switching components by removing them from the path of the load current thereby producing a device that is smaller in size, costs less and is more reliable.
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International Search Report issued in corresponding international application PCT/US2009/057405 (Feb. 9, 2010).
Written Opinion issued in corresponding international application PCT/US2009/057405 (Feb. 9, 2010).
Gmuer Thomas Charles
Watt Julian Alexander
Dykema Gossett PLLC
Patel Rajnikant
Superior Electric Holding Group LLC
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