Upon inspection, mine has a STMicroelectronics Branded "STPS20150" Schottky Rectifier : It has an IXYS Branded "IXFH150N17T" POWER MOSFET (175V V, 150 A, <12 mΩ) : I got it from ebay seller "joytownoline" : http://www.ebay.co.uk/itm/BST-900W-DC-D ... 2213076941Overclocker wrote:
well it arrived ridiculously fast from china! it worked fine at the default 20v / 5a. when i upped the voltage to around 60v it stopped working and fried my PSU
upon closer inspection it uses a schottky diode that's only rated 45v! this is a module that's supposed to go up to 120v! i guess that's why it failed at the higher voltages, but then again i'm no switch-mode expert
here's a simplified diagram of a boost converter
markz wrote:Meanwell Clone's
Are they sold on ebay?
What is the search term I use?
Want to do something similar.
This was my experience with some lower-power ("800" I think) units as well. Even though I'd seen it written that they could be paralleled.cerberpeter wrote:Has anyone tried connecting 2 boost converters in parallel? I'm trying to do that with the 1200w modules from ebay, but the result is that always one of the modules is taking all the amps, no matter how I set the pots
What Fet and diode did you order?tostino wrote: I believe that once I replace the fet and diode with the better ones I ordered, I should be able to push this to ~1000w boosting from 53v to 75v. We'll see though, that's what testing is for.
Here is what I got:parabellum wrote:What Fet and diode did you order?tostino wrote: I believe that once I replace the fet and diode with the better ones I ordered, I should be able to push this to ~1000w boosting from 53v to 75v. We'll see though, that's what testing is for.
tostino wrote:On the bright side, I ordered some higher quality fets, they max out at 100v, but are much lower resistance: https://www.infineon.com/dgdl/irfp4468p ... 2c73472019 and diodes: https://www.onsemi.com/pub/Collateral/MBR20100CT-D.PDF