There's a really useful variant of the LM2596 voltage regulator called the LM2596HV which can handle 60 volts on its input. But be careful - some that I bought recently turned out to be fake. At about 50v, the regulator became unstable and died which could very easily destroy whatever you have connected to the output.
By Julian
Youtuber, shed dweller, solar charge controller aficionado
I recently bought 8 DC DC converters with the LM2596HV, had the same problem as you mentioned. So after 9 years this issue is still not solved in China. I reordered DC DC converters that, on papers, have to withstand a 120VDC input. Thanks for your information but in my case I noticed it too late.
Nice video, thanks for sharing it with us, well done 🙂
Velleman supply the ones with the 35v input capacitor. Bought mine from ESR Components. Another point has arisen with the modules mentioned concerning the maximum allowable power dissapation of the ic power chip itself. Velleman does state this on its website. It is suprisingly low at 10W as is without additional heatsinking. ESR also supply the Cebek modules that use the same ic. These come on a large pcb board with a proper large vertical mounted heatsink that almost spans the width of the pcb.
You already know how unreliable Made in China stuff is. I always buy on the assumption that I get them cheap because they may not work (if at all) as spec'ed. The sad thing about Chinese manufacturers is they always lie and cheat, and that must be taken into consideration. I always leave what I find in the review to alert next customers.
You're wonderful, i'm stuck on this fk fake LM2596HVS, it'll dead at 50V. I don't know why because the datasheet said it up to 60V.
Man 8 years ago that was a different world
It's a bit like the usb convertors that claim 2A output and have the tiniest imaginable surface mount chip. Needless to say it was only capable of giving 500mA which is consistent with the tiny size of the chip and the price.. This didn't matter to me as I am only using the board to supply an Arduino project which draws 100mA tops but I can imagine the magic smoke being released if someone plugged a phone or tablet into it. Be wary of false claims in eBay listings and remember you get what you pay for.
wow, clearly the ic is burned to a crisp. 'hang on, check this out! It don't work when I go high volt!'
Is this really suprising? Its China.
GC Supermarket 😂👍🏻I remember that dude Julian. I bought 5 ICs off him which cost me $2 AUD. I promised to put a bigger order in if the package arrived. It arrived. I could not believe it. You are lucky if you can buy a bag of lollies for that price. Maybe he was dirty on me for not placing a bigger order. 😂😆👍🏻
Look at the recitifier diode. It should be a schottkey type. Your DC converter probably have a insufficient voltage. I got some boards same type boards with a SS14 diode which is rated 40V (spec). So no wonder the boards fail. Allso, the output cap. has clearly a rating of 35V. So why do You post a video, where You exceed this and talk about fake 2596HVS boards. Im this aspeck You are are a really amateur…posting fake tests….
thanks for saving me and not buy the fake one
🌹👍👍👍👍😉