Patent · US Active

Combined ESD active clamp for cascaded voltage pins

US9225163B2 · kind B2 · utility

23Cited by

7References

22Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Yiqun Cao · Munich, DE
Andreas Rupp · Erbach, DE
Ulrich Glaser · Putzbrunn, DE

Key dates

Filing date	Nov 1, 2013
Grant date	Dec 29, 2015
Priority date	—
Expiry date	Nov 28, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH02H9/043
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A combined electro static discharge clamp for cascaded voltage pins can include an electronic switch, a plurality of discharge paths, and a plurality of trigger circuits. In response to detecting a voltage event across any two voltage pins, the trigger circuitry can turn on the electronic switch causing current caused by the voltage event to flow through one or more of the discharge paths instead of through functional circuitry which could potentially be damaged by the current caused by the voltage event.

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