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Gold Prospecting
Do It Yourself (DIY) Projects
Diy Variable voltage setup
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<blockquote data-quote="bicter" data-source="post: 469465" data-attributes="member: 1240"><p>Dammit, just re-read your post, I was assuming 12v battery. the below will only be applicable if battery volts are higher than regulated voltage. if you need to step up the voltage and still be adjustable then you may be able to find something suitable on fleabay already made up.</p><p></p><p>you could just use an adjustable regulator and build your own. LM317 should be suitable, ensure rated to suit current requirements and dont exceed voltage input output differential</p><p>select resistors to provide required o/p voltage, using a potentiometer turns it into an adjustable regulator. </p><p>May require heatsink if high current, work it out from data sheet</p><p>using a linear regulator will reduce battery life marginally</p></blockquote><p></p>
[QUOTE="bicter, post: 469465, member: 1240"] Dammit, just re-read your post, I was assuming 12v battery. the below will only be applicable if battery volts are higher than regulated voltage. if you need to step up the voltage and still be adjustable then you may be able to find something suitable on fleabay already made up. you could just use an adjustable regulator and build your own. LM317 should be suitable, ensure rated to suit current requirements and dont exceed voltage input output differential select resistors to provide required o/p voltage, using a potentiometer turns it into an adjustable regulator. May require heatsink if high current, work it out from data sheet using a linear regulator will reduce battery life marginally [/QUOTE]
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Gold Prospecting
Do It Yourself (DIY) Projects
Diy Variable voltage setup
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