Electrostatic discharge avoiding circuit
US7660087B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2008 |
| Grant date | Feb 9, 2010 |
| Priority date | — |
| Expiry date | Apr 21, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/046
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ESD avoiding circuit includes a first ESD protection unit, an ESD detection unit, a switch unit, and an RC filter unit. The first ESD protection unit transmits an ESD current between a first conducting path and a second conducting path. The ESD detection unit is coupled to the first conducting path. The ESD detection unit includes an input terminal, and an output terminal coupled to the first ESD protection unit for detecting an ESD and controlling the first ESD protection unit to conduct the ESD current according to a detection result. The switch unit is coupled between the first conducting path and a core circuit and conducts the first conducting path to the core circuit according to signals of the input terminal and the output terminal of the ESD detection unit. The RC filter unit couples a first voltage to the input terminal of the ESD detection unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.