Signal transmission circuit and power conversion device equipped with same
US9502954B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2013 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Oct 28, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A signal transmission circuit includes, in each of a first circuit connected to a first coil of an insulating transformer and a second circuit connected to a second coil of the insulating transformer, a transmitting circuit, a receiving circuit, a coil-side switching circuit, an input/output-side switching circuit, an abnormality detection circuit, a delay circuit, and a direction control section. In the signal transmission circuit, the direction control section controls the switching circuit to switch a signal direction between input and output, and the switching circuit switches between transmission and reception. The delay circuit delays a received signal and returns the resultant signal to the transmitting side, and the abnormality detection circuit detects abnormality to perform self-diagnosis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.