Protection circuit for a semiconductor circuit
US4979071A · kind A · utility
14Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1988 |
| Grant date | Dec 18, 1990 |
| Priority date | — |
| Expiry date | Sep 13, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A protection circuit for a semiconductor circuit for protecting it from a thunder surge and overcurrent or overvoltage. A surge absorbing element and a Zenor diode are in parallel connected to the semiconductor circuit. A first fuse are connected before between the electric source and the surge absorbing element. A second fuse and a resistor, which is in series connection, is arranged between the surge absorbing element and the Zenor diode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.