Electronics > Projects, Designs, and Technical Stuff
Simple DIY Linear PSU
xavier60:
That's holding up much better. You still need to reduce the CV setting down to something like 9V to allow it to regulate.
If the voltage measurement is taken at the correct points on the PCB, the voltage should only drop by millivolts with increasing load.
panoss:
--- Quote from: xavier60 on March 15, 2020, 09:41:36 am ---You still need to reduce the CV setting down to something like 9V
--- End quote ---
How will I do this?
xavier60:
--- Quote from: panoss on March 15, 2020, 09:46:45 am ---
--- Quote from: xavier60 on March 15, 2020, 09:41:36 am ---You still need to reduce the CV setting down to something like 9V
--- End quote ---
How will I do this?
--- End quote ---
Reduce the setting on the CV Pot. If the the output voltage doesn't reduce, there could be damage to the output transistors.
panoss:
The output voltage changes when I turn the CV Pot.
But not linearly:
starting from max (Vout=11.37V), I turn the pot and for almost the half of the route voltage does not change.
After this it starts lowering till 0V! :-+
The potentiometer is a Piher 10k 426M.
panoss:
Ok, I got it!
I lowered Vout to 8.89V.
RL=no load, Vout=8.89V
RL=20 Ohms, Vout=8.86V
RL=10 Ohms, Vout=8.83V
:-+
Wow! This is rock solid!
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