Recent content by johnjcbs

The hammer and screwdriver in the background might be a clue.

Wattage =voltage x current Here's a link for reference. http://www.rapidtables.com/convert/electric/Amp_to_Watt.htm

51.8volts x 190amps = 9842 watts

The mc33033 is designed to drive a complimentary pair,not matched pair.You'll need an inverter circuit,between the mc33033 and the ncp5181. This thread by Jeremy Harris deals with the same situation. http://endless-sphere.com/forums/viewtopic.php?f=30&t=23350&start=50

The PDF shows a 12v regulator for the low voltage components.

That is what should happen,so that leaves the connectors,or the controller.

Yes,it could have come loose from the copper winding inside the hub.If you have interchangeable phase connectors,try switching them around,and see if you get the same symptoms.

It could develop in the controller,but in the hub is more likely.

Check the phase connectors,to see if any of the three have worked loose or are corroded.

Sounds like an open phase circuit.

It looks to me,that you have 16 DEAD cells. Each cell should be ~4.1v fully charged.

I think you mean "cheapest". I've seen some brushed front hub motors,on eBay,in the $80.00 range,I don't have any links though.

I came across that circuit last year,looking for the same thing as you. http://endless-sphere.com/forums/viewtopic.php?f=28&t=7675

Looks like Fechter's circuit.He posted it about four or five years ago.

It's great to hear that you are able to be doing some cycling,in your advancing years.Most people in their late seventies have succomb to arthritis or some other affliction.