Line current filter for less than 10% total harmonic distortion
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United States of America Patent
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-
Dec 30, 1997
Grant Date -
N/A
app pub date -
Jan 22, 1996
filing date -
Jan 22, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A line current filter for less than 10% total harmonic distortion includes an isolation transformer having two mutually coupled coils connected to an AC power source and a voltage rectifier. A shunt circuit is connected in parallel to one of the mutually coupled coils. The shunt circuit is comprised of a series connected resistor and capacitor. The shunt circuit may also include a second resistor connected in parallel to the capacitor. A second capacitor is connected across the two mutually coupled coils between the isolation transformer and the DC rectifier.
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