Decoupling capacitor fuse system
US5896059A · kind A · utility
16Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1997 |
| Grant date | Apr 20, 1999 |
| Priority date | — |
| Expiry date | May 9, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/003
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus to remove from operation a decoupling capacitor connected to a power supply providing power to logic circuitry in an integrated circuit. One technique for doing so is to connect a fuse in series with a decoupling capacitor. The present invention amplifies current transmitting through the fuse in a positive feedback manner to force the fuse to blow sooner than would normally occur. Therefore, when the current through the decoupling capacitor is deemed unacceptable, the fuse current is increased until such a time that the fuse opens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.