Patent · US Active

High holding voltage, mixed-voltage domain electrostatic discharge clamp

US9042065B2 · kind B2 · utility

7Cited by

4References

24Claims

0Family size

Assignee

SOFICS BVBA · BE

Inventors

Sven Van Wijmeersch · Gistel, BE
Benjamin Van Camp · Brugge, BE
Olivier Marichal · Sint-Niklaas, BE
Johan Van der Borght · Gistel, BE

Key dates

Filing date	Dec 7, 2012
Grant date	May 26, 2015
Priority date	—
Expiry date	Jan 30, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH02H9/046
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electrostatic discharge (ESD) protection circuit is disclosed including at least a clamping device, a switching device, and a voltage limiter. The ESD protection circuit may include devices of different voltage domains. The switching device may be in series with the clamping device to block at least a portion of a voltage from dropping across the clamping device. The switching device may sustain higher maximum operating voltages than the clamping device.

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