Current detecting circuit, current detecting method and converter
US11808789B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2022 |
| Grant date | Nov 7, 2023 |
| Priority date | — |
| Expiry date | Jul 8, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33584
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The application provides a current detecting circuit, including a current transformer having a primary winding for receiving a current to be detected and a secondary winding for generating a sampling current; a demagnetizing circuit for demagnetizing the current transformer; a chip selection circuit electrically connected to the demagnetizing circuit, and operably switched between a first mode and a second mode; a sampling circuit electrically connected to the chip selection circuit to sample the sampling current, and outputting a sampling signal to a controller; and a clamping circuit electrically connected between the sampling circuit and the controller, and configured for providing a reference potential. The application further provides a converter including the current detecting circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.