Circuits and methods for voltage detection
US8076959B2 · kind B2 · utility
3Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2009 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Feb 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A circuit for detecting an input voltage includes a voltage-to-current converter and a current comparator. The voltage-to-current converter is operable for generating a monitoring current that varies in accordance with the input voltage. The current comparator coupled to the voltage-to-current converter is operable for comparing the monitoring current to a threshold current proportional to the temperature of the circuit, and for generating a detection signal indicating a condition of the input voltage based on a result of the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.