Solar circulation pump and method for controlling a solar circulation pump, for controlling the starting of and for setting the performance of a solar circulation pump

摘要

To provide a solar circulation pump for connection to a photovoltaic panel device, comprising an electric motor which is electronically commutated and has a control device for supplying a periodic commutation signal, it is proposed that the control device be so configured that the commutation signal is varied with respect to the ratio of switch-on time to switch-off time.