Most likely, the IN-18's are using more current than the supply was designed for. Switching power supplies work great with zero or minimal loading, but once you start cranking more current thru them all sorts of problems can arise. I've found this out the hard way several times.
Look for signs of trouble, such as overheating (especially in the inductor from saturation), excess ripple voltage on the cap, voltage spikes on the MOSFET, duty-cycle (longer MOSFET "on" time will cause more current in inductor & MOSFET). -- 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 post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/3b75c948-ab0f-4377-8863-35640a097c50%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
