Power electronics circuit for electromechanical valve actuator of an internal combustion engine
US7509931B2 · kind B2 · utility
2Cited by
17References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2004 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Jun 15, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2007/1692
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dual coil half bridge converter adapted to be coupled to a dual coil actuator of a cylinder valve in an internal combustion engine is described. In one example, the converter has a first and second capacitor and a voltage source, where the converter is actuated via switches to individually energizing coils in said dual coil actuator. A voltage regulator is also shown for maintaining midpoint voltage during unequal loading of different actuator coils in the converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.