HIGH GAIN DC TRANSFORMER
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United States of America Patent
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Issued Date -
Apr 19, 2012
app pub date -
Dec 2, 2008
filing date -
Dec 13, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A DC-DC power converter circuit (20) is provided for transferring power between low voltage terminals and high voltage terminals. The circuit comprises an inductor (Lr) and a capacitor (Cr) provided across the low voltage terminals, the capacitor being provided in parallel with the high voltage terminals. The circuit further comprises a plurality of switches (T1 to T4) for switching the polarity of the capacitor in the circuit, and a controller for controlling the switching of the capacitor to repeatedly switch the polarity of the capacitor at a switching frequency f, such that, in use, and other than at the instant of switching, the switched capacitor produces an increasing voltage at the high voltage side of the inductor. A connection device (D2) is provided for repeatedly connecting the high voltage terminals to the switched capacitor at substantially the switching frequency f to enable current flow between the switched capacitor and the high voltage terminals.
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