Combined positive and negative voltage electrostatic discharge (ESD) protection clamp with cascoded circuitry
US11581729B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2021 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | May 14, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D89/819
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system and method for combining positive and negative voltage electrostatic discharge (ESD) protection into a clamp that uses cascoded circuitry, including detecting, by an electrostatic discharge protection system, a voltage pulse on an input pin of an integrated circuit (IC) controller, the IC controller coupled between a power supply node and a ground supply node; determining, by the ESD protection circuit, an ESD event on the input pin based on the voltage detected on the input pin; and/or controlling, by the ESD protection circuit during the ESD event, one or more clamps to transport the voltage pulse from the input pin of the IC controller to the power supply node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.