I know, but driving the B+ converter hard takes 8 amps, plus some heater power and you will be in the 10A region. I had the fan anyway.You won't need the fan. It looks like you got the parts off of my shelf!
That 12V 13A supply is excellent. I routinely draw 5A from one in a 70°C enclosure - no ventilation. No failures in the years I've used them yet, not even the cheap filter caps.
The inverter uses YPI7575c. I will buy some more inverters, now that I see that it works properly. I would replace the heatsinks with taller ones, it comes with 25x15x10. The transformer seemed fine, I could hold a finger on it.Ah. Didn't realize you were running it that hard I like the fact it will start into a load like cold heaters instead of crying like a baby lol
The double fuse is a nice touch - there's already a fuse on the DC2416
Which MOSFETs is it using? If/when they blow, you can replace then with better ones
The older ones I had used 3205 (but generic, not IRF) but the newer ones are using some CS80N80A...
How hot was the coil on the boost converter? I've had at least one get much hotter than the heatsinks.
The inverter is from Aliexpress, bought it after noticing that @kodabmx used it in one of his amps:Nice. Which module is the inverter providing up to 560V @ 200mA?
How did you cut such clean holes in perboard for the sockets? Punches ?I made a little bench for prototyping. Nothing special, but I like it
Voltages (all DC)
B+ up to 560V, 200mA
12V 13A (powers the B+ inverter and 6.3V regulator.)
6.3V 2.5A max.
Big silent fan to be able to drive the B+ inverter at 100W
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The inverter is from Aliexpress, bought it after noticing that @kodabmx used it in one of his amps:
Looks like this:
View attachment 1043696
I can only vouch that this one works. I previously ordered a slightly different one, had silver heatsinks and no rectified output, and it died after 15 min of being lightly loaded. This one works quite well, gives a square rectified or AC outputs, 110/200/220/280, I used it with a doubler, just two 22uf caps connected to the output and the middle to one of the AC taps.
I measured again to be sure, and is around 525V @220mA, 560V @90mA.
As is the case with many boards from Aliexpress, your mileage may vary. I have tested the combination for around 3 hours, loaded at 220mA, so far so good. Difficult to get a better value for £8.55 inc delivery. I paid ~£130 for a Hammond 372JX a while ago. The whole setup here, including the 12V 150W SMPS is less than £20.