Salas other SSHV2 without mod can't adjust the current from 8mA jumps to 50-60mA, can be damaged trimpot?
Merlin, it seems HV sensitive in your up to now tests, don't know. Try only if you got enough DN2540s to spare in case of magic smoke again...
Ok thanks
Salas it serves for something Q5 always goes with CCS Jung mod, the strange thing is D1 doesn't go.
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Could be the 1uF capacitor in the Jung mod slows the start up and leaves Q5 exposed to over voltage. Jung did not try or recommend for HV or in combination with a parallel thing so its not a general fault. Make that capacitor 10nF film. See if it may work in a final attempt since you like so much to try that mod in HV.
One hour going on, load 20K, voltage across load max. 189Vout, voltage across 100R resistor between PSU and Jung mod is 3V = 30mA.
Can I connect the real load?
Can I connect the real load?
Doesn't work with real load, when powered Vout was 320V, tried to adjust with the trimmer but when arrived to 290V aprox dropped to 16V, tried to go up with the trimmer but Vout doesn't go up. Powered off and after 10 minutes powered again, same story Vout 320V tryign to adjust 16V, I taked off the two 10R of my CRCR PSU if wasn't enough curren but the issue continue.