This paper studies a DC double closed loop digital PWM speed adjusting system controlled by 8098 single chip computer to explore the feasibility for the middle or small power motors.
对8098单片机控制的全数字直流双闭环pwm调速系统进行了研究，探讨了该系统在中小型功率直流电机上应有的可行性。
The control scheme and operating principle of a double closed-loop AC/DC power converter system are discussed by using physics.
从物理角度讨论了双闭环交/直流功率变换器系统的控制方案和工作原理。
According to engineering design method a double closed-loop DC motor control system was designed, a modulator structure was selected and computed, and its parameter was corrected.
采用工程设计方法对双闭环直流调速系统进行辅助设计，选择调节器结构，进行参数计算和近似校验。
Then both control scheme and operating principle of a double closed loop AC/DC power converter system are discussed by using physics.
在此基础上，提出了双向AC／DC功率变换器的一种双闭环系统控制结构，并从物理概念出发讨论了系统的工作原理。
The part of timing is a double closed loop DC timing system, and it is composed of rev loop (internal loop) and current loop (external), which are series-wound.
调速部分为双闭环直流调速系统，由转速环(内环)和电流环(外环)串联组成。
The part of timing is a double closed loop DC timing system, and it is composed of rev loop (internal loop) and current loop (external), which are series-wound.
调速部分为双闭环直流调速系统，由转速环(内环)和电流环(外环)串联组成。
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