The PWM Speed Control of DC servo Motor for Movable Robot Drives

자립형 이동로보트 구동을 위한 DC서보전동기 PWM속도제어

In this paper, PWM control is applied to the microprcessor-based adjustable speed dc motor drives. The motor drive system is composed of phase locked loop. Main drive circuit of the system is consisted of H-type bridge with switching transistors. PWM drive circuit is linearized by adding flywheeling diodes. And also. We study the optimum PWM data and period time so that it hase a nearly liner relationship between current and torque.