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		<title>步进和伺服电机驱动选型应用速成</title>
		<link>https://www.stepperonline.cn/how-to-make-lorem-ipsum-dolor-sit-glavrida</link>
		
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					<description><![CDATA[步进、伺服电机主要用于精确定位场合，也都可以用于调速应用。步进电机因效率低，一般不做为动力用；因存在一定的转矩&#8230;]]></description>
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							<p>步进、伺服电机主要用于精确定位场合，也都可以用于调速应用。步进电机因效率低，一般不做为动力用；因存在一定的转矩脉动，不推荐用于转矩控制。伺服系统则可以做转矩控制，还可考虑取代变频驱动当动力用。步进电机做调速应用时，控制指令通常用脉冲指令，靠改变脉冲频率来调速。</p>						</div>
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