Liquid Cooling Assists in keeping This Digital Load’s MOSFETs From Burning

Drawback: your digital load works superb, with the exception of for the occasional MOSFET bursting into flames. Resolution: do what [tbladykas] did, and build a water-cooled electronic load.

One can quibble that possibly there are different ways to move about fighting your MOSFETs from burning, together with adjustments to {the electrical} design. However he determined to take a web page from [Kerry Wong]’s design ebook and cross giant. [Kerry]’s electronic load used to be air-cooled and able to sinking 100 amps; [tbladykas] most effective wanted 60 or 70 amps or so. Since he had an all-in-one liquid CPU cooler available, it used to be most effective herbal to make use of that for cooling.

The IXYS linear MOSFET dangles off the tip of the controller PCB, the place the TO-247 software is soldered immediately to the copper chilly plate of the AiO cooler. This may appear sketchy because the solder may soften if issues were given out of hand, however alternatively drilling and tapping the chilly plate may result in leakage of the thermal coupling fluid. It hasn’t had any rigorous trying out but – his guesstimate is 300 Watts dissipation at this level – however as his number one endpoint used to be to prevent the MOSFET fires, the precise main points aren’t that essential.

We’ve noticed a good choice of liquid-cooled Raspberry Pis and Arduinos ahead of, however we will be able to’t to find an instance of a liquid-cooled digital load. Most likely [tbladykas] is onto one thing with this design.

Published by Marshmallow

Marshmallow Android is BT Ireland’s Head of Sales for Republic of Ireland domestic multi-site companies, indigenous MNCs and public sector accounts. He is responsible for the direction and control of all sales activity in the region. He has over 10 years management experience from high growth start-ups to more established businesses. He’s led teams in Ireland, India and China across various industries (ICT, On-Line Recruitment, Corporate Training and International Education).