Interleaving DC/DC converter-fed electric skateboard with power factor corrected charger

This paper presents the development of an electric skateboard and with a flyback switch-mode rectifier (SMR) based battery charger. An interleaving DC/DC buck converter-fed DC motor is established and used as the propulsion actuator of the skateboard. Thanks to the interleaving approach, the armature current ripple is reduced, and the fault tolerance of power circuit is preserved due to the redundancy provided by paralleled converter cells. In addition, the simple random pulse-width modulation (PWM) control using pseudo random binary sequence (PRBS) signal is applied to randomize the armature current harmonic spectral distribution. For battery charging, a SMR is developed and utilized as a charger for the electric skateboard. By operating this SMR under discontinuous conduction mode (DCM), the inherent power factor correction (PFC) function of AC input is preserved without applying current mode control. Meanwhile, the controllable and well-regulated DC output voltage is obtained for performing the battery charging.