Patent · US Active

Pulse counting registers for monitoring control signals of power switches

US11863186B2 · kind B2 · utility

0Cited by

9References

19Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Tomas Manuel Reiter · Munich, DE
Michael Krug · Munich, DE
Marco Bachhuber · Dundenheim, DE

Key dates

Filing date	Mar 24, 2022
Grant date	Jan 2, 2024
Priority date	—
Expiry date	Mar 24, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH03K2217/0072
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

This disclosure describes circuits and techniques for identifying potential problems with control signals for power switches. More specifically, this disclosure describes the use of registers, e.g., volatile or non-volatile storage elements, configured to count the rising and/or falling edges of pulse modulation (PM) signals within driver circuits or other control circuits. By counting the edges of PM signals within driver circuits, signaling problems can be identified based on mismatch between different counters. The techniques may be used by a driver circuit to detect circuit problems, or readout of the registers can be done after device failure, in order to help identify whether signaling problems may have caused the device failure.

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