The utility model relates to the technical field of power supply control, in particular to a pump power supply
control circuit for high-side driving. The circuit comprises a pump power supply controller which is used for generating a driving
control signal and adjusting the driving
control signal according to an
error signal; the driving module is used for receiving a driving
control signal; the power conversion unit is configured to boost a
direct current input
voltage into a pump
voltage under the control of the driving module according to the driving control
signal; the feedback sampling circuit is used for sampling the pump
voltage and generating an
error signal; the isolation feedback device is used for transmitting the
error signal to the pump power supply controller in a potential isolation mode; the pump power supply controller takes the
cathode of the DC input power supply as the reference ground, and the pump voltage takes the
anode of the DC input power supply as the reference standard. The scheme is suitable for high-side driving application, is a pump power supply control scheme which is novel in structure, stable in performance, flexible in control and controllable in cost, and has good popularization and application prospects.