Method and an apparatus for current sensing in an AC/DC converter
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United States of America Patent
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-
Apr 10, 2001
Grant Date -
N/A
app pub date -
Jun 9, 2000
filing date -
Jun 10, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a multi-phase AC/DC converter provided with an artificial neutral point a voltage sensing circuit is provided. The voltage sensing circuit comprises three small windings connected to a first common point and to three impedances. In the circuit, the voltage between the first common point of the windings and a second common point of the impedances is measured. The voltage is indicative of the current flowing in the artificial neutral point. By using such a circuit the current sensing in the neutral point can be simplified and the multi-phase AC/DC converter made at a lower cost.
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