Device for controlling pump with pulsating direct current has first means for producing pulsating direct current with which pump is controllable and operable and second means for changing frequency of direct current

摘要

Device (V) has first means for producing pulsating direct current with which pump is controllable and operable. Second means is for changing frequency of direct current to adjust working frequency of pump on usage. Third means is for changing control pulse width for setting duration of time within working cycle of pump in which pump coil (L) can be controlled and can flowed through by coil current. Fourth means is for temporary storage of coil energy, present in pump coil, in charging means (C) at time of disconnection of coil stream at the end of working cycle of the pump. Fifth means is for regenerating of coil energy temporarily stored in the charging means during the following working cycle of the pump. Sixth means is for measuring and evaluating a course of the coil current in the pump coil during a working cycle and adjustment adaptive set values for the control of pump coil are derived from it. An independent claim is also included for operation of device for controlling of pump.