Current measuring circuit for a converter, converter circuit and converter
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United States of America
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Oct 29, 2024
Grant Date -
Nov 24, 2022
app pub date -
May 18, 2022
filing date -
May 18, 2022
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Abstract
To enable early detection of AC insulation faults, or to permit easier, faster and more accurate measurement of small currents in inverters, a current measuring circuit for a converter is provided. The current measuring circuit has a positive supply rail, a negative supply rail, a reference potential rail and a current measuring device that contains a Y-capacitor and a current sensor connected in series therewith. The load current can be decoupled from the measurement current through the at least one Y-capacitor, so that at high load currents even small fault currents can be acquired reliably with the current sensor.
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