전기전자응용실험 Chapter 8 DC and Step Motor Control Pre-report
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- 2012.08.05
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- 2012.05
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2012년 1학기 전기전자응용실험 보고서입니다. 전부 다 영어로 작성되어 있으며, 예비보고서의 경우 주석 충분히 달려 있습니다. 베끼지 않고 작성하여, 이 자료를 쓰셔도 Cheating의 염려가 없습니다.
목차
1. Theory
1) DC Motors
(1) Characteristics
(2) T-I characteristics (Torque-Current)
(3) T-N characteristics (Torque-The number of rotations)
2) Pulse Width Modulation(PWM)
2. Problems
3. Reference
본문내용
1. Theory
1) DC Motors
DC motor is a device that makes movement energy using electricity energy(DC). It makes torque from the magnetic repulsion and attraction, created by changing the direction of current from in the coil. It uses permanent magnet as a stator and coil as a rotor. It is very widely used in applications like auto-movement device, toys, etc. Generally, DC motors are easy to control and have superior performance as control motors.
(1) Characteristics
- It has large starting torque.
- Rotation characteristic is linearly proportional to the voltage applied.
- The output torque is linearly proportional to the input current.
(2) T-I characteristics (Torque-Current)
The torque is linearly proportional to the input current. In cases where large torque is needed, the input current should be increased.
(3) T-N characteristics (Torque-The number of rotations)
The number of rotations is inversely proportional to the torque. The number of rotations is also proportional to the applied voltage. Thus, when motor overhangs heavier load, the rotation can be slower. Reversely, to speed up the rotation, more current can be applied.
참고 자료
-Datasheet of 80C196KC
-80C196KC를 이용한 마이크로프로세서 / 이만형, 배종일 / 사이텍미디어