Current detection apparatus and power conversion apparatus
US10075059B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2017 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Nov 17, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A current detection apparatus is provided which detects a current flowing through a detection part in an electrical circuit. The current detection apparatus includes a first coil connected in series with the detection part, a second coil magnetically coupled with the first coil, a full-wave rectifier circuit connected to both ends of the second coil, a switching element having a first end connected to a positive electrode side output part of the full-wave rectifier circuit and a second end connected to a first resistor, and a second resistor that forms a closed circuit with the second coil regardless of an open or closed state of the switching element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.