An main circle topology construction of DC-DC controller based on CAN bus and its control strategy are introduced. Designs of hardware and software are described in detail.

For PWM DC servo object, this paper combined the sliding mode control method with the integral control method effectively to form a kind of DC servo controller with high performances.

The voltage margin method for interchange power control was applied to the dc voltage control block (DC-AVR) and the active power control block (APR) in the terminal controller.