You might want to check the output with an oscilloscope, to see if the pwm control is oscillating. Then tune the loop response to prevent that.
On Sat, Aug 3, 2019, 1:32 AM jörg <[email protected]> wrote: > Hi, I've build pretty the same powersupply with the DA2032 and LT3757. I > love the small formfactor possible. > Unfortunately I'm experiencing singing Tubes after a while, if the PS is > going warmer. About 35 degrees C. > Using coolant spray, the singing disappears. > Question: Did you have effects? > > Anyway, I will investigate further. > And, thanks a lot for sharing. > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/90008323-62eb-436f-b45a-09812f64c508%40googlegroups.com > . > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAPbqtvdhVB7ghiCMkEfWmPoeuieXzpsW-SCOVwaU1ss%3DF6Wwdw%40mail.gmail.com.
