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Pulse Width Modulation for DC Motor Control Based on LM324 | ||
| Engineering and Technology Journal | ||
| Article 1, Volume 31, Issue 10, 2013, Pages 1882-1896 PDF (670.44 K) | ||
| DOI: 10.30684/etj.31.10A6 | ||
| Author | ||
| Jamal A. Mohammed | ||
| Abstract | ||
| The DC motor is an important part of an equipment in many industrial applications requiring variable speed and load characteristics due to its ease of controllability. Nowadays, there are lots of good-quality motor speed controllers on the market. However, their costs are relatively high. A speed controller with both low cost and good performance will be highly marketable, especially for small mobility applications. The current work allows controlling the speed of a DC motor in both forward and reversing direction, from fully off to fully on. It runs in switch mode so it is quite efficient. In this work, designing motor bi-directional DC control circuit using Pulse Width Modulation (PWM) based on an operational amplifier model LM324 is implemented. The proposed system offers many advantages such as simple structure, low cost, accurate, quite efficient, lightweight nature, small volume, and bi-directional speed control. | ||
| Keywords | ||
| PWM; Bridge; speed control; DC motor | ||
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