By MrSpriggs1 - Sat Dec 21, 2019 8:01 am
- Sat Dec 21, 2019 8:01 am
#18333
BigRedRobot,
Take a look on the DC/DC convertor. There is a surprisingly big number of different IC chips. The ones I have been using are TI LM2596 and there max voltage is 40v+/- 2% also the caps on the board need to be rated for that voltage. I have used DC/DC convertor boards that look identical but use a different IC chip. Usually it is a XlSemi IC which not all are rated to handle 42v. Either the IC or the capacitors ratings could be the problem. The other problems could be that the IC on the board might be a cheap TI knockoff. Lastly check the wiring it might be a simple mistake. Don't get me wrong cheap Chinese components go boom all the time. Just trying to narrow down the possible issues for you.
Good Luck
Mr. Spriggs
Take a look on the DC/DC convertor. There is a surprisingly big number of different IC chips. The ones I have been using are TI LM2596 and there max voltage is 40v+/- 2% also the caps on the board need to be rated for that voltage. I have used DC/DC convertor boards that look identical but use a different IC chip. Usually it is a XlSemi IC which not all are rated to handle 42v. Either the IC or the capacitors ratings could be the problem. The other problems could be that the IC on the board might be a cheap TI knockoff. Lastly check the wiring it might be a simple mistake. Don't get me wrong cheap Chinese components go boom all the time. Just trying to narrow down the possible issues for you.
Good Luck
Mr. Spriggs
bigredrobot wrote: ↑Sat Dec 21, 2019 1:54 amThat step down is almost identical to the version I found by eBoot. The rectifier chip even looks like the same. I tested it yesterday and after about 4 minutes of power on it was just about to hit the pain threshold for too hot to touch. I had it hooked up to test the voltage out put and in that time I was trying to turn it down from 40v to a lower out put and it never went down.MrSpriggs1 wrote: ↑Fri Dec 20, 2019 11:40 pmHey BigRedRobot,
So this is the DC/DC power supply I have been using. They have been working great. www.amazon.com/gp/product/B0788HNX1P/re ... UTF8&psc=1
Make sure to hook them up to a Multimeter first and set them to 5 volts. When you hook them up to 42v they start outputting 21 volts. Cheap and easy to use.
As for the Arduino I really recommend using a ESP32 for your controller. It won't require extra switches and wires so they can be setup quick and easy. And with the RemoteXY smartphone app for iOS/Android its really easy to connect up and turn the scooter on. You can even setup passwords. If you need a wiring diagram, I will be happy to set one up.
P.S.Its a little creepy that scootertalk.org turns my link into an amazon ad but hey that's just the way these things are right .
The new version I'm testing doesn't get warm and the output is on the money every time, no adjustments needed.
https://www.amazon.com/gp/product/B07RT ... UTF8&psc=1