kinarfi
Well-Known Member
I scrolled through Allied Electronics Power FETs and my main criteria was high current and later price comes into play. In choosing a Power FET for my project, are there any certain specs I should be looking for in the spec sheets?
Some of these are rated over a hundred amps continuous in a TO-220AB package and with my background as an electrician, I don't see how that much current can flow through the leads and not heat up severely. I'm thinking of running parallel FETs, Should I? or would it be a waste of board and components and which of the follow would you recommend and Why. The motor I'm using is off a Power Wheels ride on toy and pulls around 30 amps stalled and around 17 loaded but still turning, 3 pole, permanent magnet field. Amp measurement come from voltage across a .1 ohm resistor in series, the highest reading I ever got was 2.7 volt, = 27 amp. On another unit, I expect to see current in the 40 amp range.
Thank you,
Kinarfi
Some of these are rated over a hundred amps continuous in a TO-220AB package and with my background as an electrician, I don't see how that much current can flow through the leads and not heat up severely. I'm thinking of running parallel FETs, Should I? or would it be a waste of board and components and which of the follow would you recommend and Why. The motor I'm using is off a Power Wheels ride on toy and pulls around 30 amps stalled and around 17 loaded but still turning, 3 pole, permanent magnet field. Amp measurement come from voltage across a .1 ohm resistor in series, the highest reading I ever got was 2.7 volt, = 27 amp. On another unit, I expect to see current in the 40 amp range.
Thank you,
Kinarfi