Leakage current sensor and leakage current monitoring device
US11163016B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2017 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | May 7, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R35/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A leakage current sensor and a leakage current monitoring device; the leakage current center comprising an input end, an output end and an ASIC chip; the ASIC chip is electrically connected with the input end for reading analog quantity signals of the input end; the ASIC chip is further electrically connected to a digital signal processing module; the digital signal processing module can output digital quantity signals to the output end; the digital signal processing module can simultaneously feedback the output digital quantity signals to the ASIC chip, thereby forming a closed-loop feedback circuit; the input end of the leakage current sensor comprises a current sampling unit; a reference unit is arranged between the current sampling unit and the ASIC chip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.