Patent ID: 8421394

Claim:
A method for measuring currents in a multiphase electrical network comprising: generating trigger signals with a predetermined timing pattern to operate at least one controllable circuit element to selectively couple a multiphase electric motor to a DC power source; and chronologically shifting at least one of the generated trigger signals to produce measurement windows that enable measurement of a first current and a second current through a single shunt resistor, the first current corresponding to a first phase current through the multiphase electric motor and the second current corresponding to a second phase current through the multiphase electric motor, the chronological shifting for the at least one generated trigger signal corresponding to a dead time of the at least one controllable circuit element that corresponds to a sum of a dead time of a bridge branch through the multiphase electric motor, a settling time of an amplifier circuit used to measure the first and second currents, and a sampling time of an analog/digital converter that converts an output signal of the amplifier circuit to a digital value.