hey all
I have a large motor that I stole from a boat winch that I calculate will be capable under max load of pulling roughly 450amps.
I'll need to drive it with pwm so solenoids are out, but some pwm cycles will approach of not get to 100% duty. I was planning on mosfets of course but I wasn't sure if they made special packages and fets just for stuff like this ?
I know heat will be an issue but its taken care of (own a CNC Mill and large blocks of stock). This should only be running for 30 seconds max with at least 2 min between uses.
The largest mosfet I can find is 80A (D2Pak). I'm not 100% sure but I should be able to put say 6 to each side of the H no? Thus split the load and rON values ?
Anyone have any thoughts or practical examples of something this large.
Thanks!
I have a large motor that I stole from a boat winch that I calculate will be capable under max load of pulling roughly 450amps.
I'll need to drive it with pwm so solenoids are out, but some pwm cycles will approach of not get to 100% duty. I was planning on mosfets of course but I wasn't sure if they made special packages and fets just for stuff like this ?
I know heat will be an issue but its taken care of (own a CNC Mill and large blocks of stock). This should only be running for 30 seconds max with at least 2 min between uses.
The largest mosfet I can find is 80A (D2Pak). I'm not 100% sure but I should be able to put say 6 to each side of the H no? Thus split the load and rON values ?
Anyone have any thoughts or practical examples of something this large.
Thanks!