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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: 469707" data-attributes="member: 1240"><p>Thanks Pat, </p><p>They certainly are cheap enough and appear to meet Fireys requirements with a few additional external components.</p><p>I mentioned SMPS early in the piece but avoided them as as they can be inherently noisy whereas the linear isn't so much. Having said that, its been a few years since I looked at them <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> It may need an inductive filter on the O/P in addition to the cap.</p><p></p><p>The OP was looking for switch selectable voltages, do you know if fitting switched resistors would work? Are there any switching spikes associated with turn on?</p><p></p><p>For info, just found a report, inc schematic, on the module here <a href="https://www.matts-electronics.com/wp-content/uploads/2018/06/XTE-SY-8.pdf" target="_blank">https://www.matts-electronics.com/wp-content/uploads/2018/06/XTE-SY-8.pdf</a></p></blockquote><p></p>
[QUOTE="bicter, post: 469707, member: 1240"] Thanks Pat, They certainly are cheap enough and appear to meet Fireys requirements with a few additional external components. I mentioned SMPS early in the piece but avoided them as as they can be inherently noisy whereas the linear isn't so much. Having said that, its been a few years since I looked at them :) It may need an inductive filter on the O/P in addition to the cap. The OP was looking for switch selectable voltages, do you know if fitting switched resistors would work? Are there any switching spikes associated with turn on? For info, just found a report, inc schematic, on the module here [url]https://www.matts-electronics.com/wp-content/uploads/2018/06/XTE-SY-8.pdf[/url] [/QUOTE]
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Gold Prospecting
Do It Yourself (DIY) Projects
Diy Variable voltage setup
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