Author Topic: 1 to1 voltage regulator with external power ind  (Read 656 times)

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Offline bwinddkTopic starter

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  • Country: dk
1 to1 voltage regulator with external power ind
« on: January 12, 2020, 07:46:54 am »
Hello good people :-) i hope this is a simple question, have a 3dprinter but because of chines cheap engineering the mosfet of the fan control is stuck at 6v i am getting a new motherboard, but want to remove the strain of the mosfet with a external board, but cant fore the love of my life find out what it is called. the range is 0-12v under 1A need a board that regulate one to one ( 5v in 5v out, 12v in 12v out) but with a external power in... does something like this exist??
Just need the name of something like this, ore a link so i can find something to search for :-) want to do the work but hard when you don´t know what to search for :-/ :-)
Hope you guys can help med :-D

Thanks in advance
kind regards Brian
 

Offline ZaphodBeeblebrox

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  • Country: be
Re: 1 to1 voltage regulator with external power ind
« Reply #1 on: January 12, 2020, 02:06:34 pm »
So, you have a regulator that regulates the voltage of a fan in the range of 0-12V, with a maximum current draw of 1A at 12V? You noticed a MOSFET of said regulator is deffective because it "is stuck at 6V". What do you mean by the latter? When a MOSFET goes to the eternal silicium fields, it shorts out most of the time...

Could you either:
    [li}Provide the schematic of the regulator, so we know what is going on? Maybe it's easier to just take the input of the regulator an feed it to a more powerfull regulator, but to know that, schamatics are required.[/li]
    [li]Confirm that you in fact need an analog/digital (which of the two?) power amplifier that takes an input signal of 0-12V and outputs the same voltage but with more current capacity?[/li]
    [/list]
     

    Offline bwinddkTopic starter

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    • Posts: 2
    • Country: dk
    Re: 1 to1 voltage regulator with external power ind
    « Reply #2 on: January 20, 2020, 07:20:52 am »
    Hi thx for the reply   :D i got a Anycubic i3 mega S 3dprinter and people warn that the main board i a bit small for the loads, so modding it with external relays to not burn out the main board for the hot end and heated build plate, but min is stuck a 6.1V on a fan output and it cant adjust anymore and it is not software, the fan runs as soon as i give the printer power, but there is a small start up on the main board so normal no fans runs before this is done. Anycube is sending a new main board, i can´t do anything to the main board i don´t got schematics on it just need to find a external solution. i got the error on a other forum other has this problem but nobody got a solution except a new mainboard. i am thinking i can make one out of a arduino but i am thinking something like this must exist??? i am still just a noob :-/

    Kind regards Brian
     


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