> The problem I am having, is the heat loss from the Mosfet and inductor - > Packing this inside the bulb renders these parts at 100 degrees C, which i > don't think they will last very long being that temperature...
I can think of basic way to make the inductor run cooler - use a higher current version. This may well not be practical due to space reasons. I can also think of four basic ways to make the mosfet run cooler: 1) heat sink - again probably impractical due to space reasons 2) bigger mosfet - yet again probably no room 3) reduce switching frequency - this would need a bigger inductor, for which there is probably no room 4) turn it on and off harder, keeping it out of the linear region - look at Mike's MK2 supply for one way to do this with a couple more components. There are also ways to use the boosted voltage to get higher gate drive, and/or use a dedicated mosfet driver chip. - John -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
