Latchable relay
US6738250B2 · kind B2 · utility
4Cited by
3References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2002 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | Oct 18, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2051/2218
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solenoid-actuated latchable relay is controlled by a microprocessor that turns on at least one triac to selectively energize a solenoid coil with a desired polarity energization signal. The triac is only operated momentarily so that a single energization pulse is applied to the coil to move an associated magnetic plunger to a position corresponding to the polarity of the pulse. The magnetic plunger is latched in this position until another pulse is applied to change the position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.