Hi everyone,
I have a very old small scrap yard oil filled electromagnet about 12"- 300m diameter that I need to control the strength of.
I have a small crane on the back of the truck I had for my workshop & want to fit the electromagnet to it to enable me to be able to clean up several tons of steel scrap I have laying around, it's a must do job & the only way I can do it.
I want to control the strength of it rather than just have ON-OFF as with just ON-OFF control the thing will be to strong & dangerous, if I can adjust it, it will make it much safer to use & it won't get as hot.
I don't want the thing that strong it wants to lift the steel tray off my truck either.
The electromagnet was powered by a 12v DC generator which was old & not working when I bought the lifting magnet & was sold as scrap by the previous owner.
This is a learning project as well & I was thinking about using an arduino to control the magnet with Mosfets & PWM.
The magnet is rated at 12Vdc & 75A.
I have a good 12Vdc 100A supply from an old charger that I can use or a couple of big 12V batteries if away from a power source.
The questions I have are:
When triggering the gates of the Mosfets IRF3205 which I will attempt in Parallel configuration, is it best to use some TC426CPA Ic's & trigger the gates all individually with these gate drivers at the same time?
I have some of these chips on hand.
Or is it better to trigger all the gates together in series from one gate trigger driver, say a suitable transistor configuration?
Or can the TC426CPA chips be paralleled to trigger the Mosfets all at once in series from the same single trigger pulse?
Sorry for all the questions but I just need to have a good setup that will work & not fail.
Cheers
I have a very old small scrap yard oil filled electromagnet about 12"- 300m diameter that I need to control the strength of.
I have a small crane on the back of the truck I had for my workshop & want to fit the electromagnet to it to enable me to be able to clean up several tons of steel scrap I have laying around, it's a must do job & the only way I can do it.
I want to control the strength of it rather than just have ON-OFF as with just ON-OFF control the thing will be to strong & dangerous, if I can adjust it, it will make it much safer to use & it won't get as hot.
I don't want the thing that strong it wants to lift the steel tray off my truck either.
The electromagnet was powered by a 12v DC generator which was old & not working when I bought the lifting magnet & was sold as scrap by the previous owner.
This is a learning project as well & I was thinking about using an arduino to control the magnet with Mosfets & PWM.
The magnet is rated at 12Vdc & 75A.
I have a good 12Vdc 100A supply from an old charger that I can use or a couple of big 12V batteries if away from a power source.
The questions I have are:
When triggering the gates of the Mosfets IRF3205 which I will attempt in Parallel configuration, is it best to use some TC426CPA Ic's & trigger the gates all individually with these gate drivers at the same time?
I have some of these chips on hand.
Or is it better to trigger all the gates together in series from one gate trigger driver, say a suitable transistor configuration?
Or can the TC426CPA chips be paralleled to trigger the Mosfets all at once in series from the same single trigger pulse?
Sorry for all the questions but I just need to have a good setup that will work & not fail.
Cheers