Monolithic overvoltage protection device
US5245499A · kind A · utility
31Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1991 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Jul 12, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D89/711
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A protection device against overvoltages liable to occur between two supply terminals (A, B) comprises between the supply terminals, an avalanche triggered thyristor (6) having a determined break-over voltage (V.sub.BO) This system further comprises a zener diode (4) in parallel and reversely connected with the thyristor; the diode is selected so that its avalanche voltage (V.sub.BR) is lower than the break-over voltage of the thyristor and gets higher only for overvoltages having a higher duration or amplitude than a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.