Brown out detector having sequential control function
US10254353B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2015 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Nov 5, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A brown-out detection circuit having a time sequence control function comprises: a voltage divider (110), a reference voltage source (120), a comparator (130) and a time sequence control module (140); wherein one terminal of the voltage divider (110) is connected to an external power supply, the other terminal of the voltage divider (110) is connected to a positive input of the comparator (130), the reference voltage source (120) is connected to an inverted input of the comparator (130), the time sequence control module (140) is connected to an output of the comparator (130), an output of the time sequence control module (140) serves as an output of the brown-out detection circuit; when a duration of a power supply voltage lower than a reference voltage is not shorter than a preset time, the time sequence control module (140) controls the output of the brown-out detection circuit to be inverted from a high level to a low level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.