watched the whole video but missed the part on setting the amps. Anyone else see that?
@gbany100
7 ай бұрын
Yes do u go clockwise or counter to increase amps?
@dexterousx92
Жыл бұрын
*I have watched this video twice now. You have some great information here and i really appreciate you sharing it . I have a question. How do we know what size boost converter do we need for our project. What determines if the converter is suitable. My input and output voltage falls within the range. What else is important to know if it works?*
@karldingbat
Жыл бұрын
Just make sure your cable is up to handling the current especially the input as that can be more than double the output current. Also make sure you've got adequate airflow as these get quite warm/hot during use and just keep an eye on it, they are good but i dont trust Chinese electronics enough to leave them out of sight/smell range.
@dexterousx92
Жыл бұрын
@@karldingbat *Okay got it thanks . I think i can manage these suggestions.*
@karldingbat
Жыл бұрын
@@dexterousx92 just 1 thing i should of mentioned, the power rating of these is the input and output combined, for example if its a 1800 watt converter it means the power going in at 900 watts and the power at output is 900 watts equals 1800 watts, its complicated but for some reason thats how they do it!
@dexterousx92
Жыл бұрын
@@karldingbat *OK ill have to figure out my input & output watts. Thanks again*
@marox3G
9 ай бұрын
Greeting! Very educational videos!!! Well done Professor! Which converter would you recommend to make a power supply with DC input and output~ 4-6V and ~8-12A adjustable ! That it can work without interruption and overheating for a long time!
@dantronics1682
2 жыл бұрын
just a small comment, if you set the low voltage to 13.5V or 14V the buck will turn off if the engine isnt running, I dont know what the standby current is so dont know if you can connect it direct to the battery without a relay
@karldingbat
2 жыл бұрын
I set the low voltage cut off to just over 12 volts, the standby current is very low if nothing is drawing on the converter, so depending on what size battery you are using there shouldn't be a big problem
@user-rx4vs3kk4i
10 ай бұрын
bro if you wan a challenge try outting 4 in parallel, so are all putting out equal power. i pulled it off with the 1200 one, then 3 of them died
@karldingbat
10 ай бұрын
Bit of an expensive exercise, bit like parallel fuses once 1 goes, the rest follow
@gbany100
7 ай бұрын
How do u set the amps clockwise up or down?
@LFCUyo
5 ай бұрын
Can this device handle treadmill dc motor of 18amp and 95vdc
@2pist
8 күн бұрын
I'm using it for that very purpose.
@saadomar1101
5 ай бұрын
it's rated for 40amp input, can it do so that or near those amps, on 40V-50V input?
@karldingbat
5 ай бұрын
Its 1800 watt total input plus output, you wont get near 40 amps at 40-50 volt in you need to calculate the absolute max of 1800 watts for the entire unit, in plus out combined = no more than 1800 watts
@saadomar1101
5 ай бұрын
@@karldingbat cool lets forget about input volts. Can it take 35a or 40a current input? Ever tested?. If not, are you able to confirm.. it would save a day.
@karldingbat
5 ай бұрын
It no doubt could take this input current if the voltage was correct but as a boost converter the output voltage would be higher up to around 110volts with roughly 3amps it all depends on what its to be used for
@saadomar1101
5 ай бұрын
@@karldingbat awesome thanks for the reply dear
@leehawkins1533
Жыл бұрын
Just brought the same off ebay 3 day delivery £16
@saarthtrivedi13
Жыл бұрын
Hi, any idea what would be the voltage across the VC potentiometer. I want to change the analog one with a digital one so I am looking for the voltage values
@karldingbat
Жыл бұрын
Sorry, I've not checked that far into it.
@dogma7064
Жыл бұрын
Can i use this to charge secondary battery? From alternator to this then out to 2nd battery..
@karldingbat
Жыл бұрын
I see no reason why not so long as the 2 battery is at a higher voltage than the alternator as this is a boost converter and its job is to increase voltage.
@Whale_Lover
Жыл бұрын
Hi can these step ups ruin the lithium cells or decrease the life of the battery pack or is all this false? I know that by increasing the voltage the battery discharges earlier this seems obvious but I don't know if it decreases the total life of the battery you know lithium batteries have about 1000 cycles which should last 2/3 years but with the step up I don't know if it will die to earlier ? thanks vrey much
@karldingbat
Жыл бұрын
Lithium should have many more than 1000 cycles, more like 3000 if using lifepo4 then up to 6000 cycles and so long as you do not drain them to low or draw more than the rated capacity there should be no degradation of the cells.
@Whale_Lover
Жыл бұрын
@@karldingbat thanks so man its safee to use step up without any problem with lithium battery also im dont pushing to much the voltage
@danielauen7790
2 жыл бұрын
So, if I were to feed this with a 12 volt (more like 15) source of sufficient current, would this be able to output 42v at about 30 amps?
@karldingbat
2 жыл бұрын
No. It wont be able to output that much current. The output is governed by the input, the input and output combined are what gives the 1800 watt figure so you would need an input power of 900 watts to get 900 watts output.
@johnflower8384
2 жыл бұрын
Yes, if sufficient current means more than 100A!
@karldingbat
2 жыл бұрын
And at that current it would last about 20 milliseconds!
@bensoci4583
2 жыл бұрын
I got one recently and the thermistor is underneath, between the pcb and heatsink, what temperature will trigger the fan to turn on ?
@karldingbat
2 жыл бұрын
Actually there isnt a thermistor on the board for some reason, well on mine it isnt there. The tabs to connect 1 are there but its not on the board. Can you possibly send me a picture of the thermistor mounted to the board please ?
@bensoci4583
2 жыл бұрын
@@karldingbat i keep replying with the link to the photo but youtube wont save my reply
@bensoci4583
2 жыл бұрын
@@karldingbattried a few ways none of which saved so i put the link to the photo in the comments off the single video i have up, i also measured 16k ohm at 22c ambient temp
@karldingbat
2 жыл бұрын
@@bensoci4583 i see now. Mine hasnt got that so to tell the truth, i dont know what the temp is with that 1. Mine just has the solder pads to mount your own thermistor, interesting!
@s.m.i.e3283
2 жыл бұрын
What is the waves coming output sine wave or square waves.
@karldingbat
2 жыл бұрын
DC its not an inverter its a boost converter it doesnt produce AC current
@leamyelectricinc1
Жыл бұрын
Can you parallel them for more power?
@karldingbat
Жыл бұрын
I can see no reason why not, as long as the voltage and current settings are identical it should work just fine.
@harungenc1650
Жыл бұрын
Hello, if we take 3 of this boost converter and connect it in series, will it give 220 volts?
@karldingbat
Жыл бұрын
No, you cannot connect in series. I tried to do the same and it damaged them beyond repair
@harungenc1650
Жыл бұрын
@@karldingbat I wonder what is the reason because it seems that there is no harm in principle, so is there a solution to this?
@karldingbat
Жыл бұрын
I didnt try to fix the issue as i didnt want to damage any more converters, it blew the output mosfets of both units, it may be the voltage rating of the output capacitors i just dont know the reason
@harungenc1650
Жыл бұрын
@@karldingbat I thought, I was going to connect a 12 volt car alternator to a gasoline engine and make 220 volts with 3 boost converters and start the welding machine, do you think?
@user-ir6ug6gk1f
Жыл бұрын
Hii , can we limit only current to 6A and keep the voltage as it is (input volatge =output voltage ) i.e we want to use this converter for the current limiting purpose only can we do that ?
@karldingbat
Жыл бұрын
Yes, if you turn the blue potentiometers to get your desired voltage and current
@user-ir6ug6gk1f
Жыл бұрын
@@karldingbat I'm trying but I couldn't set those. Could you please help me out. I'll mail you please
@user-ir6ug6gk1f
Жыл бұрын
@@karldingbat could you tell me your mail. I will write the email the issue.
@karldingbat
Жыл бұрын
@@user-ir6ug6gk1f the input voltage needs to be higher than output voltage or it will not work, the more current draw the higher the voltage needs to be
@Rcrdo072
10 ай бұрын
can this handle an input voltage of more than 60 vdc like 63?
@karldingbat
10 ай бұрын
Not sure, never gone above 48 but shouldn't think 63 would be a problem but dont take my word for it!!
@golddetector01
2 жыл бұрын
Can this device work from a solar panel at 24 volts at 6 amps then increase the voltage and amperage for a faster charge for 100 amp leisure battery👍
@karldingbat
2 жыл бұрын
It cant increase the current and voltage, it could increase the voltage but the current would decrease as voltage increased, you cannot get more power out than what you put in.
@golddetector01
2 жыл бұрын
@@karldingbat Thanks for that info it's just what I needed to know but it's definitely got it uses as you were proving there 👍👍
@karldingbat
2 жыл бұрын
@@golddetector01 yes they are very useful, just as a note the 1800 watt ratting is input and output combined, so if your putting 900watts in, you can only get 900 watts out. Confusing i know, i just use it on as low power as i can get away with.
@Anisur..Rahaman..
2 жыл бұрын
Hi Can I run 48volt 850watt 20 amp motor For my e rickshaw with load 400kg can it run?
@karldingbat
2 жыл бұрын
You would need to use a vehicle motor controller with a throttle input, these small units cant handle that sort of power. Its not just rated on the power that comes out, its the input watts and output watts combined that give these units their rating.
@ernieschatz3783
4 ай бұрын
"The input and output ratings combined??" Does that mean if the input is consuming 1000w the output can only put out 800w? That does't make sense. It should be 1800w total with maybe 10% loss between input and output.
@karldingbat
4 ай бұрын
No, you will need a dedicated motor controller
@karldingbat
4 ай бұрын
I dont thing you quite understand quite how boost converters work.
@ernieschatz3783
4 ай бұрын
@@karldingbat I don't "thing" you do.
@kaviravimal5248
2 жыл бұрын
12v convert to 36v in this circuit
@karldingbat
2 жыл бұрын
Yes it will
@kaviravimal5248
2 жыл бұрын
@@karldingbat 12v 28ah to 36v 28ah its ok
@kaviravimal5248
2 жыл бұрын
Another thing, when connecting 4 UPS batteries in parallel, is it necessary to install a BMS to charge them?
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