Medical fluid machine having solenoid control system with reduced hold current
US7782590B2 · kind B2 · utility
15Cited by
24References
27Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 22, 2008 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Apr 24, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2007/1894
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electromechanical solenoid control system with reduced hold current includes an electromechanical solenoid including an armature and a coil; a voltage source; a resistor placed in an electrical line between the voltage source and the solenoid coil; 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, the control element operable to receive a signal from the electrical line and use 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.