Electronic drive controller with sensor interface circuit for temperature measurement with rtd using wire resistance compensation and electric motor assembly

Abstract

An electronic drive controller (101; 201) for driving an electric motor (90) includes a reference connector (122; 222) connected to electric potential reference (GND); an analog input connector (123; 223); and an analog output connector (121; 221). The electronic drive controller (101; 201) comprises a sensor interface circuit (130; 230), which is connected to the electric reference connector (122; 222), the analog input connector (123; 223) and the analog output connector (121; 221), wherein the sensor interface circuit (130; 230) is configured for operating a resistance temperature detector (170; 270) with at least three (171, 172, 173; 271, 272, 273, 274) for temperature measurement with wire resistance compensation with applying an excitation current via the analog output connector (121; 221).

Dependencies are inferred from the claim text.