ClemensA
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Posts posted by ClemensA
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Hey
Thanks for the reply
Here are the voltages:
Output: U1 = 11,24V that voltage is constant no matter of the setting of the potentiometers
U2 ~ 31,5V that is at highest setting of the voltage potentiometer and if I turn down the voltage below 0,8V (meanwhile 0,8V is the maximum voltage, at first it was 2V and it sinks permanent)
U3 ~ 32,9V if I activate the current control it sinks heavily but i think that is normal, right?
Emitter:
0,32V and it sinks permanent also if I don't do anything
When I built the PSU I measured the supply voltage on the opamps but the voltage wasn't higher then the maximum voltage of them so I thought that the post on the homepage about the supply voltage of the opamps wasn't right.
This is the post i mentioned ".If you connect them as it is shown in this circuit diagram that voltage will be about 45VDC, so they will burn down immediately."
Clemens -
Hello!!
I'm from Austria, so please excuse if I don't speak english well ;)
One month ago I built the version of the PSU which is on the homepage and it worked very well. But few days ago it broke down and I don't know how it works and so I'm not able to repair it without your help.
The problem is that the voltage doesn't rise higher 2V.... :-\
I hope you can help me to repair it and please speak nice english, else I wouldn't understand it ;)
Thanks
Clemens
0-30V Stabilized Power Supply
in Projects Q/A
Posted
Thanks thanks for all the answers
So you mean I should change the 2n2219 to a bd139 with heatsink?
That's good because I still have a bd139 :D
It's very good that the opamps are not broke down but if they will break down I will change it to the better opamps you mentioned.
I will tell you when I repaired the PSU and it work.
Thanks anotherone ;D