Optical-control driving circuit for high utility power
US10454473B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2018 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Jul 25, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An optical-controlled driving circuit adapts to a high utility power environment with high voltages, large currents and severe surges, and includes an optical-controlled switch circuit, an SCR with optical-controlled driver and a main circuit. The optical-controlled switch circuit includes an optical-controlled component and a first switching transistor that are connected in serial. The SCR with optical-controlled driver includes at least two switching transistors that are connected in serial and a plurality of diodes, and is coupled to the main circuit. The optical-controlled driving circuit generates a driving current according to the voltage of a utility power. When the optical-controlled driving circuit is used in a DC converter using an SCR as a switch element, the optical-controlled driving circuit helps to increase the operation efficiency when the DC converter works under a light load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.