High voltage tolerant supply clamp
US9293912B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2013 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | May 31, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/046
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods for active detection, timing, and protection related to transient electrical events are disclosed. A detection circuit generates a detection signal in response to a transient electrical stress. First and second driver circuits of an integrated circuit, each driver having one or more bipolar junction transistors, activate based on the detection signal and generate activation signals. The one or more bipolar junction transistors of the first and second driver circuits are configured to conduct current substantially laterally across respective base regions. A discharge circuit, having an upper discharge element and a lower discharge element, receives the activation signals and activates to attenuate the transient electrical event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.