Power converter
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United States of America Patent
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Aug 31, 1999
Grant Date -
N/A
app pub date -
Sep 16, 1998
filing date -
Oct 29, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A PWM power converter includes a first switching branch of a first switching device and a first inductor between a positive source terminal and a load terminal and a second switching branch of a second inductor and a second switching device between the load terminal and a negative source terminal. To reduce noise and loss, the power converter is further provided with a series combination of third and fourth capacitors connected between the positive and negative source terminals, a series combination of first diode and first capacitor connected between a first junction point between the third and fourth capacitors and a second junction point between the first switching device and the first inductor, a series combination of second capacitor and second diode connected between a third junction point between the second inductor and the second switching device and a fourth junction point between the third and fourth capacitors, a series combination of third diode and third inductor connected between a fifth junction point between the first diode and the first capacitor and the positive source terminal, and a series combination of fourth inductor and fourth diode connected between the negative source terminal and a sixth junction point between the second capacitor and the second diode.
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