Power-on reset circuits including first and second signal generators and related methods
US6914461B2 · kind B2 · utility
10Cited by
7References
35Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2003 |
| Grant date | Jul 5, 2005 |
| Priority date | — |
| Expiry date | Mar 28, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/223
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A power-on reset circuit which outputs a power-on reset signal through an output node includes a first signal generator that generates a first signal voltage. The first signal voltage increases from a ground voltage when a power supply voltage reaches a first threshold voltage. A second signal generator generates a second signal voltage, and the second signal voltage decreases from the power supply voltage when the power supply voltage reaches a second threshold voltage. A comparator activates the power-on reset signal responsive to a comparison of the first and second signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.