I have a very well made custom-made lab supply given to me by a friend. It is capable of
1.6A max and
32V DC voltage.
I want to add a secondary output to this supply but I have a hard time figuring what point in the system I should choose as input to this buck-boost module.
Variable Switched Supplylook like this converter or something similar. This module is actually controlled by a voltage pot and a current limit one.
I experienced the full power of the cap when I tried to rush the discharge with a screwdriver. This makes me wander:
Q1: If I were to add the buck converter directly to this cap would it be sufficiently safe? Could I get electrocuted if there was a direct path from the cap to me?
Currently the buck-boost is connected to
OUT2 DC outputs which I consider safe (the module I added is capable of step up and step down transforming). The problem with this configuration is that at about
3.5V on the standard output the module triggers the short circuit protection and never recovers. I have to cut the power, wait a few seconds and only then does the output voltage recover.
Q2: Why is the module shortcircuiting? I presume the IC has some undervoltage protection. Is this normal behaviour?