1

I see the question has been asked a few times about using rectifiers in parallel to get a higher current rating and this is not advisable however I wanted to ask how this would apply to a active mosfet regulator and rectifier namely the fh020aa commonly found in bikes having a peak current of 50 Amps.

My application will generate 120 amps peak and at 12 volts and a standard 3 phases rectifier would lose a lot of that power so I wish to use two of these in parallel with a brushless motor to gain 100 amps peak.

Can it be done? Or is there a more suited rectifier capable of taking the current?

Chris James
  • 81
  • 3
  • 10
  • 1
    We could use a few details. A schematic or a drawing of your intended design would help a lot. –  Jan 22 '18 at 23:52

1 Answers1

1

In theory , this part can be designed to handle more than two Shindengen fh020aa regulators, but it does not include the thermal, mechanical and electrical interface parts added.
enter image description here

Mind you these external regulators are designed for motor cycle alternators. Now you can get a 136A 14V alternator with internal 3 phase regulator for less than half the price.

Tony Stewart EE75
  • 1
  • 3
  • 54
  • 182
  • The reason for using active rectification or mosfets is fir efficiency my problem is the high current 1.5kw is alot of power and I was hoping to get away without having to build another circuit as I can't seem to find much information on making an actual circuit no one seems to have any diy examples especially not for that current rating. – Chris James Jan 23 '18 at 09:50