Just bought one of these an keep blowing fuses on everything I've tried. Is it user error or defective?I've tried it on my bench grinder and angle grinder both blew the fuse

The adjusting screw is on the bottom of the circuit board nowadays it seems. I just bought mine today. And i have to turn it all the way to the right to get the speed reduction I want

Plug in a bridge rectifier to the unit and your motor, and it will powers brushed dc motor .

Thank you!!! This solved my issue.

Great video. I like the idea of using the boost converters to drive power tools.👍

can i use 12v 170ah nortstar battery as input, i acutally want to run 48v 1500w hub motor does it work? does it burn module if we input high current 170ah

is it uni directional or bi directional flow conevrter ?

my next project. thanks!

I’m trying to use this to step up from 12 to 18V on a Kids power wheels car to drive the two brush motors faster, my question is, if you change the polarity on the input side, will it also change on the output side, or would it just cause and error? This is how forwards and reverse is accomplished, so I want to make sure it would work. The input power I will feed the converter will be coming from the speed control, which will alternate polarity when either forwards or revers is selected at the shifter. And no, I cannot step up the voltage before the speed control, as the speed control can Only handle 12v, and the motors can handle 18v. So I need to connect on the output side of the speed control.

Bang on man. 3 years later I just bought one and drilled a hole where u said and the adjuster is still there. Thanks

My current knob doesn’t change thr current on my multimeter. Broken knob?

Thank you for your video ! can I connect 3pcs or 4pcs of this Boost Converter in parallel to bring up higher current output ? I will add a blocking diode to the positive connector at output side of each unit to prevent from any back flow current from other units. I plan to use them to charge my battery pack of 560Ah. Do you think this work for my application ? FYI, the power source is from a PSU providing 12V 75A (900W), I have 3pcs of it. If I need about 60V, I will use 3pcs of it in series to give 36V input. If I need 14.6V, I just need 1pc PSU,

It occurs to me that I can very likely use my variac to get the same effect and probably with a better range and more precise control.

wonderfull

Im pretty sure you can still pop off the back and access this from a small hole in the circuit board itself without having to drill any holes.

off to HF

Good reviews

Thank you the info. I needed

Can the input current amps be adjusted

I recently got one that looks exactly the same and was told the first potentiometer you are wondering about is a low voltage shutoff to prevent draining your battery. This may help others who run into issues. I haven't yet tested this myself, but it was just delivered today.

Cool idea.

Just FYI, If you put loads of cooling on these, they can run some serious power! I charge my 90v ebike battery at 12 amps using a 1.2kw power supply reliably. So thats just over a 1kw of charging power. Too many people bash them saying they burn out when pushed to 250 - 300w after they get hot. Well duuuurrrr!!! Put some wacking great big fans on it then lol. I built mine in to what is essentially a rectangular wind tunnel box with a powerful 120mm fan on each end and it has done about 50 cycles on my battery now at that power setting.

I am building a mini lathe to make screw-in pins, turned down from setscrews. I want to use a sewing machine motor but some of the foot pedals won't let you vary the speed as much as you would like. I believe this will work, as I could adjust the potentiometer to give me finer speed control. Thank you for the information.

Hi, got one but it came damaged, can you please tell me what is the R2 value? R2 is above the RV1 near the input terminals. Any help appreciated.

Excellent video!

Bel video ! Una domanda ! E' possibile avere una spiegazione in lingua italiana ?

What is the maximum output current .we want input 12vdc100amp to 48vdc 60amp output is it possible or not

Interessante ! E' possibile avere una spiegazione scritta, di come fare la taratura dei vari trimmer, in lingua italiana ? Grazie ! Purtroppo in internet non trovo nulla !

the blue led is indicating that you dropped below the voltage cutoff setpoint when you were running the trimmer.

thanks , you saved me a lot of time

OCP=overcurrent protection.

still working? most say these die quick and usually max at 150-300 watts or so

Thanks for the info Todd. If I hadn't seen this it would have been crazy to bypass the old motor control board on my treadmill. I got lucky and got ine of these with screws on the back. 👍

Boost converter. Buck converter goes down

Battery 12v bus 15000w 30A = 24v load 2 motor 24v 250w 14A / 1 unit. So can you run, thank you

What rpm does your grinder spin at?

UNDER VOLTAGE PROTECTION AND OVER CURRENT PROTECTION OFOURSE

What power supply do you have connected to this module ?

Looking forward to seeing more videos!! I think that you deserve way more views. Why don’t you use SMZeus . c o m? If I was you I’d use it to help grow your channel!!

You talk too much !!!!! 😂😂😂😂😂😂😂

really great idea!!

I building a 600A dc booster with SCR diode.

hi , Does the 48 volt inverter work ? 48 volt 4 batteries required.. Can I use this device with inverter by turning 12 volts to 48 volts

I see them for sale, thankyou for your demo

Thank you, just bought one of these, had exactly the same issue so I came to see if this was how it was supposed to be and found your video. Perfect information. THANK YOU!

I know this video is 9 months old but it is still helping people. Great job and thank you!!!!

your awesome thanks!! Solver of my problem

great I did the same thanks to you sr.

Thanks! This modification worked great for me! The screw in the rheostat/potentiometer is a slotted screw, smaller than a #1. Like the video I was able to dial down the speed of my tool to buzzing without spinning and adjust upward from there.

Hi, I recognized the minus in and the minus out have no consistently electrical contact, so can the be a problem if I connect but minus to the same ground. Weaker models have a contact tnx