Transient voltage detection circuit
US8116049B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2009 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Sep 9, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H1/0007
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention discloses a transient voltage detection circuit suitable for an electronic system. The electronic system includes a high voltage line and a low voltage line. The transient voltage detection circuit includes at least one detection circuit and a judge module. Each detection circuit includes a P-typed transistor and/or an N-typed transistor, a capacitor and a detection node. The transistor is coupled with the capacitor, and the detection node is located between the transistor and the capacitor. The judge module is coupled to each of the detection nodes. The judge module generates a judgment according to voltage levels of the detection nodes. Accordingly, the transient voltage detection circuit is formed. The electronic system may selectively execute a protective action according to the judgment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.