Fast AC voltage detector
US8933688B2 · kind B2 · utility
0Cited by
19References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2011 |
| Grant date | Jan 13, 2015 |
| Priority date | — |
| Expiry date | May 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/16547
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fast AC voltage detector includes a bridge rectifier connected to an AC power source, a threshold detector connected to an output of the bridge rectifier, a voltage isolation circuit connected to the threshold detector, a continuous voltage averager connected to an output of the voltage isolation circuit, and a Schmidt trigger connected to the continuous voltage averager. The Schmidt trigger is operable to output a first voltage level when a load is preset on said AC power source and a second voltage level when no load is present on said AC power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.