Patent · US Active

Voltage monitor using switching signal for motor

US11561247B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Michael Krug · Munich, DE
Felix Weidner · Munich, DE
Christian Walther · Frankfurt am Main, DE

Key dates

Filing date	Apr 19, 2021
Grant date	Jan 24, 2023
Priority date	—
Expiry date	Jul 29, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH03M3/458
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A device configured to monitor a voltage at a voltage rail for driving a motor includes processing circuitry configured to receive an indication of a switching signal for a phase of a plurality of phases of the motor. Inverter circuitry associated with the device is configured to electrically couple the phase to the voltage rail or to a reference rail associated with the voltage rail based on a driving signal that is generated based on the switching signal. The processing circuitry is further configured to determine a measurement time to measure the voltage at the voltage rail based on the switching signal and generate, using an analog-to-digital converter (ADC), a set of measured voltage values based on the voltage at the voltage rail during the measurement time.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.