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DC universal motor drive: Paving a path for upgrade

Posted: 09 Dec 2013  Print Version  Bookmark and Share Subscribe 

Keywords:DC universal motor drive  PWM  MCU  AC universal motor drive 

[Summary of tips] The speed of a universal motor is established by the voltage applied to it: the greater the voltage, the faster the rotation. In an AC drive, speed control is achieved by applying longer or shorter portions of a mains half-cycle. This can be accomplished very simply using a diac, a triac and some passives. A higher-performance ......
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