While I check the specs and thought the driver could handle it, after about an hour of discontinuous use, the driver stopped working...

I used the following : Motor Specs: 24V 250w, rated current 13.4 Amps, No load current <2.2 Amps, Gear reduction 9.78:1

With this driver Dual channel, 5-25 volts 10 amp max continuous in each channel 30 amp max (upto 10 seconds)

While I ran the setup at no load, I checked the temperature of voltage regulator ic 7812 (on the driver board) after 45 mins or so, it was piping hot and the board had stopped conducting.

Also, the operation involved a pwm input from a potentiometer, which would gradually change the speed of motor from 0-300 rpm and had an emergency stop which would immediately turn the pwm to 0.

The motor would start slightly humming even at 0 pwm and would stop with a jerk when used emergency stop.

Please help...

  • \$\begingroup\$ Where does the 7812 fit in the circuit? Can you draw a schematic? \$\endgroup\$ – HandyHowie Feb 24 at 12:38
  • \$\begingroup\$ @HandyHowie difficult to get you circuit since cytron drivers are proprietary, but I know it's location on the board if that helps.., it is in the exact middle of the board. \$\endgroup\$ – nalostta Feb 24 at 12:41
  • \$\begingroup\$ Did you put your regulator on a heatsink? \$\endgroup\$ – jwh20 Feb 24 at 12:51
  • \$\begingroup\$ @jwh20 the driver was store bought and I didn't put any heatsink on it \$\endgroup\$ – nalostta Feb 24 at 12:52
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    \$\begingroup\$ @BrianDrummond my colleges robotics team has been buying products from robu, they're reliable and it may sound like rob u lol, but it's more of an indian pronounciation thing. I attached that link to mainly share the specs, that I may have missed mentioning. \$\endgroup\$ – nalostta Feb 24 at 14:08

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