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  1. M

    Help required for Linear Power Supply build using LM317

    Hi! I have been trying to build a liner power supply using LM317 voltage regulator but I am stuck.:mad::mad: Here's my schematic. All the values are also leveled on the schematic. Since, I was going to use this power supply to run a small DC fan I made so, I didn't bother to add extra caps...
  2. M

    Disadvantage of several capacitors in parallel in a power supply?

    Hi! I am making a linear power supply. I don't have 10,000 μF cap but I have several 1000 μF caps. So, I thought I could add 10 of them in parallel to get 10, 000μF value. Will this cause any problem. This power supply is just for displaying in my class giving some basic demonstration like...
  3. M

    How does an ATX power supply work?

    I was looking to build a bench power supply. So, I broke into an old ATX power supply to salvage parts. I found 3 power transistors [KSE13009L], and 3 schottky barrier rectifiers [S30D40C] but I didn't find any voltage regulators which I was hoping to find. I did find a packaged Bridge Rectifier...
  4. M

    Replacement for a microcontroller

    So...I am working on this ir heart rate monitor project...found it on the internet!! Its a really simple circuit...an ir emitter and a detector pair is used as a sensor...which is touched to your skin...it shines light up your skin and then reflected light is dected by the detector..this signal...
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