Patent ID: 11955958
Assignee: LEM INTERNATIONAL SA
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 24:
25. An electronic power switch drive module for a power semiconductor unit, comprising an electronic power switch drive and a current transducer mounted on one or more circuit boards, the electronic power switch drive comprising at least one circuit portion for controlling at least one electronic power switch of a power semiconductor module of said power semiconductor unit, the current transducer configured to be coupled to an output of the power semiconductor module for measuring an output current of the power semiconductor module, said at least one circuit portion connected to an output potential (Vout) of the output current to be measured, wherein the current transducer comprises a plurality of discrete magnetic field sensors mounted on a portion of a circuit board surrounding a passage formed in the circuit board configured for receiving therethrough the output conductor, the current transducer being electrically connected to said at least one circuit portion of the electronic power switch drive at said output potential, and wherein said circuit of the electronic power switch drive comprises a galvanically isolated connection to an interface circuit for data, power or both data and power connection to the power semiconductor module.