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<a accesskey="3" href="page.php?w=Opto-isolator&amp;p=2">3.Next</a>
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<p>An <b>opto-isolator</b> (also called an <b>optocoupler</b>, <b>photocoupler</b>, or <b>optical isolator</b>) is an <a href="page.php?w=electronic_component">electronic component</a> that transfers electrical <a href="page.php?w=Signal">signals</a> between two isolated circuits by using light. Opto-isolators prevent <a href="page.php?w=high_voltage">high voltage</a>s from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10&nbsp;<a href="page.php?w=Volt">kV</a> and voltage</p><p>
<a accesskey="3" href="page.php?w=Opto-isolator&amp;p=2">3.Next</a>
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