G.T.O. Chopper와 Microprocessor에 依한 直流電動機의 定速運轉에 關한 硏究
- G.T.O. Chopper와 Microprocessor에 依한 直流電動機의 定速運轉에 關한 硏究
- Other Titles
- A Study on method to control the constant speed of D.C. motor by microprocessor and G.T.O. chopper
- Issue Date
- No. 1
- 本 硏究는 G.T.O chopper와 Microprocessor에 의한 直流電動機의 定速度運轉方法을 나타내고, G.T.O chopper 回路는 驅動回路로 構成하였다. 電動機의 速度는 Microprocessor의 program에 의한 data를 digital tachometer에서 photo sensor로 計算되는 binary bit와 比較하였다. 結果에 따르면 非制御時 速度變化는 約 15[%]였으나 Microprocessor에 의한 feed back 制御후의 速度變動率은 0.8[%]전후로 改善되었고, 또 同一 duty ratio에서는 周波數가 높을수록 效率이 向上되었다.
This paper pressents a method to control the constant speed of D. C. motor by microprocessor and G. T. O. chopper. This G. T. O. chopper circuit is constituted for the driving circuit. The speed of motor is compared the binary bit counted by photo sensor in the digital tachometer with the data with is inputed in the accumulator of microprocessor. In this study, speed requlation of the motor was about 15(%) for open loop system, but speed regulation of the motor was improved approximately 0.8(%) for the close-loop system with feed back control by microprocessor. The efficiency of high frequency range is increased compared to that of low frequency on the same duty ratio when a motor was used as a load. Volume can be reduced and the chopper circuit simplified.
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