Recent content by TommyCat

Been enjoying your thread and creativity on repurposing the meter. When I was looking at the different analog meters, in my mind I would consider getting one with a working voltage of 0 to 100 volts. Then slightly modify the face to represent 0 to 100 percent of battery charge. Coloring in the...

Hi macp444, I recommend you look over this thread on testing a BLDC‘s wiring and sensors with a multi-meter… It may point to something missed, or misunderstood. Testing BLDC motor's Phase Wiring - Hall Sensors and Wiring. - Electricbike.com Ebike Forum Regards, T.C.

Hi Joaqthru, I'm a Magic Pie V5 rider... You are working on a Version 2 for sure. You may be able to get a used controller for it if lucky. Or that motor may be a good candidate for an external mounted replacement, but with a fair amount of work. To help with the damage assessment I'm thinking...

May be worth checking... verify that you have good continuity between the hall sensor terminals and where the new wiring will go on the pristine solder points. (Nothing scuffed up or damaged in the traces.) Have all the sensors fronts (with the part stamp) facing the magnets. All the 5V legs...

For inspiration. :)

Hi Cyclomania, It appears to me, that motor board can be set up to handle hall sensors, but at this time does not. A good clue is the numbers of wires coming off the pcb. A sensored BLDC motor will have a total of at least 5 wires going to the controller’s hall sensor plug. You have 3, with the...

Shouldn't have any problems after reading this... Guide to Hall Sensor Throttle operation, testing, and modification. - Electricbike.com Ebike Forum Regards, T.C.

Right now I have an exponential ramp circuit. (Typical R/C type plotj Your linear ramp circuit. And a logarithmic ramp by modifying yours, that was my goal to achieve in my mind. Granted, one might not be able to tell much if any difference between the three. But will see. Is R1 just to dump...

... Bend it like Beckham. ;) A usable circuit as modified? Delay is easily adjusted by the R7 capacitor. Working on a potentiometer model to work in LTspice. :confused:

This looks VERY interesting. Bit above my knowledge level but going to study it. Thank you.

Will definitely be looking at this op amp circuit closer, thank you both for your inputs. Recommendations for the signal input. I.E. speed sensor on the wheel with 1 rpm pulse. Or perhaps put a couple or more magnets for more signals? Or tap into a hall signal output?

Yes, I have a sample and hold circuit and a D flip flop for its actuation/release by pressing a momentary push button switch. It's the first part... speed pulse integration with the components you mention that I could use help with. .

You’ve talked me out of the simulation for now. I think I’ll stick with the delay/soft start idea at this time for the issue of excessive start power at the beginning of throttle twist. Do you have a cruise circuit that will try to maintain SPEED at a certain throttle voltage output? Like an...

Thank you for the detailed explanation, My take away is that current controlled mimics a gas powered bike. For fun will try to “simulate” your circuit. Look for your addition to the thread soon.