Optically coupled electric power relay
US4296331A · kind A · utility
15Cited by
7References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1979 |
| Grant date | Oct 20, 1981 |
| Priority date | — |
| Expiry date | Aug 9, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/79
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention relates to power relays and more particularly to optically coupled, zero-voltage switching electric power relays. Operating from logic-level signals, the device can control loads of several amperes or more at 60-400 Hz line voltages of at least 240 VAC. The invention introduces meaningful superior performance characteristics while at the same time incorporating unique cost reduction methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.