Contactor control circuit
US8134820B1 · kind B1 · utility
26Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2008 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Oct 10, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H11/002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A contactor control circuit is disclosed for controlling a contactor connecting an alternating current electrical power source to a load. The contactor control circuit comprises a switching circuit connected in series with the inductor for controlling the conduction of the contactor. The control circuit actuates conduction of current through the inductor for energizing the contactor to connect the alternating current electrical power source to the load. The invention is also incorporated into a circuit for switching a first and a second alternating current electrical power source to a load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.