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Desktop Air Purifier (Fume Extractor)
Switched Mode Dual Variable Power Supply
Brilliant Build. excellent In-depth Intructable. thankyou so much for explaining in-depth how to change the pots to different ones I have been looking for a way to remove them. because people have been trying to remove them (On the Ltc3780 Model) by desoldering them directly from the bottem of the board and in doing so bracking the tracks/traces on board. when powering up the board to check to see if the modification was a success a FAULT light then lights up but now I can hopefully remove the pot by the above method safely thankyou for the brill advice Daniel
ordered everything just can't wait to try it out. how can I change the pots to the ones I ordered without damaging the circuit as some people have above and ended up breaking the tracks on the board and having to buy a new one . also if use a plastic ABS project box do I need to figure a way to earth the ac input to the box or will it be fine with it being plastic Ie. non-conductive please Some help.cheers Daniel
ordered everything just can't wait to try it out. how can I change the pots to the ones I ordered without damaging the circuit as some people have above please Some help cheers
Build Your Own Variable Lab Bench Power Supply
Mini Adjustable Power Supply
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Sturdy circuit board holder
DIY Powerful LED Panel - Video and Work Light
How to control the brightness of a LED
Wrong totally a bad idea if you are wanting to put a switch to go across the 12v rails to stop the 12v current running into the 12-5v converter then you will need to solder the wires to positive( Ie...one wire from the switch to the positive terminal of the battery or Psu and the other wire to the positive input of the 12v to 5v converter. putting a switch across a negative wire will never work switchs are designed to work on positive current only (worked this out by many years of tial and error work with circuits )
12v to USB adapter \ 12v to 5v transformer (great for cars)
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