Medical fluid machine having solenoid control system with temperature compensation
US7746620B2 · kind B2 · utility
12Cited by
22References
21Claims
0Family size
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Inventor
Key dates
| Filing date | Feb 22, 2008 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Jun 26, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2007/1888
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A medical fluid machine having a solenoid control system with temperature compensation includes an electromechanical solenoid including an armature and a coil, a voltage source, a switching device configured to selectively apply power from the voltage source to the solenoid coil, and a control element connected electrically to the switching device and operable to receive at least one signal indicative of a resistance of the coil and using the signal to control the switching device to selectively apply power from the voltage source to the solenoid coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.