Stable, programmable low-dissipation reference circuit
US5212413A · kind A · utility
4Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1991 |
| Grant date | May 18, 1993 |
| Priority date | — |
| Expiry date | Jul 8, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/356008
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
When using a laser programmable fuse, a circuit should be 100% stable both before and after the fuse is blown. So far no CMOS circuit can be 100% stable without drawing a constant current. With the "Master fuse Enable" scheme one fuse circuit (master fuse) draws current while disabling all other fuse circuits on-chip. Thus giving 100% stability and reducing power consumption on a chip where no fusing has been done. If, however, one wished to use the rest of the fuses, then the master fuse is blown and all fuse circuits now become active and draw current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.