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Recent Forum Posts

Re: Voltage regulation circuit 12V to 5V in 5A range

The 2A wall adapter was a quick fix to be able to continue testing.

The 9V 2A is holding up for now.
Demon Today, 00:27

Re: Voltage regulation circuit 12V to 5V in 5A range

That's what I said in the second part about getting more than 2A out.

You can't get 5A out if the adapter can only supply 2A
tumbleweed Yesterday, 22:00

Re: Voltage regulation circuit 12V to 5V in 5A range

Noname chinese rubbish... They don't even have the proper distances or creapage on the PCB...

Prefer good brands like Mean Well or Sunny.

Ioannis
Ioannis Yesterday, 18:39

Re: Voltage regulation circuit 12V to 5V in 5A range

Not so tumbelweed.

With Linear regulators, your Input current is the same with the output current! Beware of that! Plus the current of the regulator of course, though this is small enough.

The...
Ioannis Yesterday, 18:11

Re: Voltage regulation circuit 12V to 5V in 5A range

The only difference between the LM1084-ADJ and the fixed output LM1084-5 is the latter already has the resistors to set the output voltage built inside it. You will only get 5A out of it if you have...
tumbleweed Yesterday, 14:42

Re: Voltage regulation circuit 12V to 5V in 5A range

chinese amps are quite a bit smaller than normal ones. 0.75 seems close
richard Yesterday, 03:24

Re: Voltage regulation circuit 12V to 5V in 5A range

....
....
wow, looks like you were trying to take 100 amps from that little power supply..... (just kidding)
.
adding..... should probably never try to use a power supply at it's full rating,...
amgen Yesterday, 03:17

Re: Voltage regulation circuit 12V to 5V in 5A range

Piece of crap 7V wall adapter worked 10 minutes...

https://www.amazon.ca/dp/B091YHX8RY
Demon Yesterday, 01:10

Re: Voltage regulation circuit 12V to 5V in 5A range

I just noticed the LM1084-ADJ is claimed to "provide 5 A at high efficiencies and very low drop-out." I just ordered a few from Digikey.

Ioannis, will the TPS565208 or TPS56339 voltage drop when...
Demon Yesterday, 00:50

Re: Voltage regulation circuit 12V to 5V in 5A range

Yes, all of these SMPS do have that high frequency transformer and do isolate the secondary. Few have poor isolation.

Many have bad fuses in the line input and they blow after the explosion of low...
Ioannis - 7th November 2024, 20:22

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