Hello!
I recently posted a thread about how I am building a dual power supply and was given a circuit, however there seems to be some issues with the design. First of all the LM317 is outputting a negative voltage, which I do not think it should do, as it is a positive voltage regulator. also it seems that while the LM317 output varies from the range of almost 0V to -30V, the LM337 output varies from +27.8V to +39V. this makes even less sense. Can someone please look at my circuit and tell me what I am doing wrong?
I recently posted a thread about how I am building a dual power supply and was given a circuit, however there seems to be some issues with the design. First of all the LM317 is outputting a negative voltage, which I do not think it should do, as it is a positive voltage regulator. also it seems that while the LM317 output varies from the range of almost 0V to -30V, the LM337 output varies from +27.8V to +39V. this makes even less sense. Can someone please look at my circuit and tell me what I am doing wrong?
Attachments
-
4 KB Views: 18