Circuit for detecting and recording a voltage surge
US6411544B1 · kind B1 · utility
19Cited by
8References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2000 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Sep 27, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit to detect and record the occurrence of a surge in the supply voltage applied to an integrated circuit includes a detection circuit for providing a control signal if a voltage surge is detected. The circuit also includes a high voltage circuit, which produces a high programming voltage from the supply voltage if a voltage surge is detected, and a memory cell. The detection circuit may include a capacitor divider bridge, a voltage source, and a comparator. The circuit is particularly advantageous for use with electrically programmable memories.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.