Low power solenoid driver circuit
US7161787B2 · kind B2 · utility
9Cited by
13References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 4, 2004 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | May 4, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/04106
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention provides a system and method for controlling a solenoid that ensures accurate timing between the enabling of the driving circuit and the activation of the solenoid, while simultaneously providing a two energy level driving scheme to reduce power consumption. The present invention utilizes a single enable signal and supplies the solenoid two different energy levels, a higher “set” level and a lower “hold” level. The generation of these two levels is based on the enabling signal and guarantees that the higher “set” level is present when the solenoid is activated, thereby minimizing undesirable timing jitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.