Circuit arrangement and method for adjusting the power consumption of a load that can be operated by a direct-voltage system
US7705554B2 · kind B2 · utility
2Cited by
24References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2005 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Oct 19, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/0822
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit arrangement and a method for adjusting the power consumption of a load of a cooling fan motor of a motor vehicle that can be operated by a direct-voltage system has at least one semiconductor switch in the supply current circuit of the load, and a control unit for triggering the semiconductor switch or switches. The load is connectable via at least one sense field-effect transistor to the direct-voltage system the measurement output of the sense FET is connected to the control unit, and the control unit furnishes a signal corresponding to the current consumption of the load at the respective operating point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.