Patent · US Active

Robust current sensing during inverse current load conditions

US11411562B2 · kind B2 · utility

1Cited by

2References

21Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Ioan-Alexandru Tranca · Feschnig, AT
Florian Brugger · Villach, AT
Alexander Mayer · Velden am Wörther See, AT

Key dates

Filing date	Jul 18, 2019
Grant date	Aug 9, 2022
Priority date	—
Expiry date	Oct 12, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH10D84/141
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A current sensing circuit includes load transistors having a current path coupled between a power terminal and corresponding load terminals, sense transistors having a current path coupled between the power terminal and corresponding sense terminals, each sense transistor being coupled to a respective load transistor, N-channel transistors having a current path coupled between a respective sense transistor and a respective sense terminal, an amplifier for selectively equalizing the voltages across one of the load transistors and one of the sense transistors, and bypass circuits coupled to a bulk terminal of the N-channel transistors.

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