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  1. A

    HS3540+12 fet+Lipo Hardtail build

    After tens of hours of researching and building, I finally believe my ebike is finished enough to post it up on ES. I'll go over every detail I can remember, and post enough pics. I hope that this build will help some noobs out there the way many threads helped me. Feel free to PM with questions...
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    Test load for bulk charger

    I was trying to think of a way to test my meanwell s-150-24 (x2 but only testing one at a time) bulk charger for max amps. I did the R33 resistor mod. I have a car subwoofer and 2 car amplifiers that could easily take 150 watts. Using the amplifier means I can vary the load really easily. Now...
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    Capicator in line with hall sensor throttle?

    I was wondering how I could change my bike to be easier on take offs. Since the controller (lyen) works by trying to limit speed and not torque, I have applied abit more torque than I wanted at take offs. Obviously this is not good for the bike since going from stationary to moving is most...
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    Choosing a Lipo charger

    I am finally ready to take the lipo jump, but first is to find the right charger. I decided I want to have 4 Turnigy 5s Lipo batteries, but I want to know what is needed in order for the charger to work with them...
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    USB/TTL problems

    Ok, So i upgrade my controller traces, and it works perfectly. Today i decide to increase the current abit. I set up the program (used it b4 successfully) and pulled everything in. I hit the transmit button and then the button on the usb/ttl but it doesnt actually send. So the program just...
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    Upgrading Lyen Controller Traces

    I have some copper braid and a 140 watt weller soldering gun. I decided to upgrade the traces on my 12 fet sensorless lyen controller. So i went to use my soldering gun, and tinned my tip/braid. But the gun just cant melt the solder on the broad. The braid just wont stick even with flux. How...
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    Controller coming on when battery disconnected

    Ok, so I got a Lyen sensorless controller for my bike. My motor is a HS3540 with 3 12v SLA in series The bike works awesomely. One thing thou that is weird, when i disconnect the ground to the battery the controller shuts off (all good, i use a key/switch on the ground wire for ignition), but...
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    Infineon throttle

    I just completed replacing my hall sensors in my hs3540 that i bought from ebikes. I also got a half twist throttle and 40 amp infineon controller. Well i tested the hall sensors and they alternate voltage, and the resistance between the phase wires in the controller are high (so no internal...
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    Torque Curves for HS3540

    I was playing around with the simulator on ebikes.ca for my current set up 36 volt 12 ah sla battery, HS3540, and infineon 40 amp controller. 24" wheel I noticed for that set up i get If i add another battery in series i get this I understand the higher top speed since more voltage, i only...
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    Hall sensor question for hs3540

    So i got my hs3540 motor and infineon 40 amp from ebikes working and rode it for 2 days. I was fixing the rear brake and i guess i didnt fully tighten the axle nuts and the wires got twisted. Time to fix something. So i the controller turns the CA on but when i hit the throttle no power is sent...
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    Help a newbie wit HS3540

    Its my first ebike. I just bought a hs3540 with 24"rim and 40 amp Infineon controller. I hooked up 3 12 volt lead acid batteries in series. I hooked up the brakes, throttle (half twist) and CA to the controller. I also sprayed red insulating varnish on the motor and added baby oil for passive...
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    Controller for astro

    I have given up on finding a smaller 2hp brushed motor for my summer build. Before i buy a heavy motenergy motor, i want to check out any cheap controllers for astro. So far its i have been looking at kelly controllers. Would one of those work for an astro 3210 motor? Do you need to buy an...
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    Summer ebike build

    I am planning to build a ebike this summer. I was hope to use my existing road bike and add a dc brushed motor behind the seat and above the wheel. It will be a chain driven and not friction bike. But the real question is i was planning on buying from electricmotorsports.com this motor...
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