| 摘要 |
Device for driving an electromagnet (4) for operating a pump, as well as the related method and the related dosing electromagnetic pump, the electromagnet (4) comprising a primary winding (3) and a moving element (9), capable to be attracted within the primary winding (3) when an energising current is higher than a first threshold value so as to let a liquid dose into an external hydraulic circuit depending on the travel of the moving element (9), the device comprising a control logic unit (6), capable to control said energising current, the device being characterised in that the control logic unit (6) is capable to detect said energising current so as to provide said energising current to the primary winding (3) until said energising current assumes a second threshold value, depending on a value of the liquid dose to let into the external hydraulic circuit, higher than the first threshold value and not higher than a third threshold value in correspondence of which the moving element (9) arrives at stop.
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