Electrical control circuit and method
US6895175B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2001 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Apr 10, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02N11/14
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Systems, methods, and apparatus, consistent with principles of the present invention, allow an unmodified device, for example, a dc starter motor, that normally operates at a first voltage to function in an electrical system providing a second voltage, which is different from the first voltage, and received from the power source. A device actuator, such as a solenoid, is controlled using the second voltage. The first voltage is produced and supplied to the device in response to a first action of the actuator, for example, upon solenoid depression. This voltage is then inhibited from being provided to the device in response to a second action of the actuator, for example, upon solenoid retraction after engine cranking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.