In view of the shortcomings of the traditional asymmetric half bridge (AHB) power converter of switched reluctance motor ( SRM) in electric vehicle drives, a novel DC/ DC converter cascaded at the front-end of the AHB power converter is proposed to realize the regulation of DC-link voltage and the controllable feedback of braking energy. Firstly, the operating modes of the power converter are analyzed theoretically. Then, the look-up tables of the excitation voltages, the demagnetization voltages and the turn-off angles about speeds and loads are established, respectively, so as to match the proper DC-link reference voltage according to the motor working conditions. And the overall closed-loop control scheme is given. Finally, the experiments are carried out on a three-phase 6 / 4 switched reluctance motor and the experimental results verify the effectiveness of the proposed power converter.