Patent · US Active

Integrated protection circuit

US8681459B2 · kind B2 · utility

3Cited by

5References

18Claims

0Family size

Assignee

Freeescale Semiconductor, Inc. · US

Inventors

Kurt U. Neugebauer · Vaterstetten, DE
Andreas Roth · Gunzenhausen, DE

Key dates

Filing date	Mar 31, 2009
Grant date	Mar 25, 2014
Priority date	—
Expiry date	Apr 21, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH01L2924/0002
WIPO fieldSemiconductors
WIPO sectorElectrical engineering

Abstract

An integrated protection circuit for protecting a main circuit from spurious high amplitude voltage signals is provided, wherein the main circuit has a main circuit input terminal connected to an input line, and the protection circuit comprises a transistor, a resistor and a capacitor. The transistor has a first electrode connected to the input line, a second electrode connected to a common reference, and a control electrode connected to the resistor. The resistor is connected to the common reference; and the capacitor is implemented as a fringe capacitor between the input line and the control electrode or a conductive line connected to the control electrode.

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