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    Water cooled car alternator

    You dont have to be ambitious, just buy simple pwm for brushed motor. I'm using that. There's no need for different power pack for rotor. It's robust, and do the job. Only one problem may occur. Because you set current for rotor with potentiometer, current will change accordingly to voltage...
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    Water cooled car alternator

    This is my fine setup 😁 Battery 60v 34ah, Chinese controller with 45A limit tuned to 75amp's. And, alt is on delta not star. With star speed is much lower.
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    Water cooled car alternator

    How do you supply power for rotor? Going faster can be achieved with lowering current for rotor, but not too much (less power). Maybe kelly have output for field weakening. My experience says, from start to maybe 3/4 max speed, current min. 4.5A. For faster rpm's, around 3A (maybe 2 - 2.5)...
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    Water cooled car alternator

    It's still enigma for me, but,... Watching many pictures, and locating center point where rotor is locked with stator (N to S magnetic) for each of tree phases, I install hall very similar what you see on the picture. To determine center for each phase, you can track windings or energize with...
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    Water cooled car alternator

    Sorry, my mistake. In this video, at 10:30 is showing how led's work. https://youtu.be/rQy-hIMY__A For reverse step when starting, I blame bad position of hall sensors, or even that controller doesn't see sensors. In those cases, controller will start maybe forward, maybe backward, until with...
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    Water cooled car alternator

    Just pay attention how led's work at video that previous member post. There's always two led's on, or, in every step of rotor, one led is turnd off. Second: dont forget that alt insted of "classic" bldc motor, have much less steps in one rotation. In my setup (controler + alt), minimum rotation...
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    Alternator Hall Sensor Positioning

    Here's my findings with driving on alternator. If you use without sensors, to generate back emf, rotor need min 1.8A. I'm using pwm for rotor, and testing with dc source gave me the same amps. I installed sensors, but maybe made a mistake for placing them, because, controller work same with or...
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    XLD Brainpower motor controller XunLiDa

    Hi. I'm using controller 1200w 45A limit. Setup is little different from that we see on the road. 60v battery with that xld controller, run an modified alternator, witch can handle up to 100v and 120A current. Everything is more than i suspect. Have some problem, mostly because of my lack of...
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