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<a accesskey="3" href="page.php?w=DC-to-DC_converter&amp;p=2">3.Next</a>
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<p>A <b>DC-to-DC converter</b> is an <a href="page.php?w=electronic_circuit">electronic circuit</a> or electromechanical device that converts a source of <a href="page.php?w=direct_current">direct current</a> (DC) from one <a href="page.php?w=voltage">voltage</a> level to another DC. It is a type of <a href="page.php?w=Electric_power_conversion">electric power converter</a>. Power levels range from very low (small batteries) to very high (high-voltage power transmission).</p>

<p><big> History </big></p>
<p>Before the development of <a href="page.php?w=Power_semiconductor_device">power semiconductors</a>,</p><p>
<a accesskey="3" href="page.php?w=DC-to-DC_converter&amp;p=2">3.Next</a>
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