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DEEP CYCLE BATTERIES and BUSH POWER
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<blockquote data-quote="PabloP" data-source="post: 135521" data-attributes="member: 4430"><p>An ordinary diode only allows current to flow in one direction (ie. not flow back as per your term) but a Zener diode is used as a voltage regulator, as when the voltage reaches its Zener rating the diode effectively breaks down and allows the current to flow back through it. Naturally you would normally place a resistor in this circuit to limit that flow and protect the Zener.</p><p></p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/4430/1424399299_zener_diode_regulator.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>The drawing was copied from the following web site as it was easier than creating my own.</p><p></p><p><a href="http://www.electronics-tutorials.ws/diode/diode_7.html" target="_blank">http://www.electronics-tutorials.ws/diode/diode_7.html</a></p><p></p><p>Rob</p></blockquote><p></p>
[QUOTE="PabloP, post: 135521, member: 4430"] An ordinary diode only allows current to flow in one direction (ie. not flow back as per your term) but a Zener diode is used as a voltage regulator, as when the voltage reaches its Zener rating the diode effectively breaks down and allows the current to flow back through it. Naturally you would normally place a resistor in this circuit to limit that flow and protect the Zener. [img]https://www.prospectingaustralia.com/forum/img/member-images/4430/1424399299_zener_diode_regulator.jpg[/img] The drawing was copied from the following web site as it was easier than creating my own. [url]http://www.electronics-tutorials.ws/diode/diode_7.html[/url] Rob [/QUOTE]
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