Hi -
I recently built some very basic linear motor drivers, pretty much identical to the schematic below.
The only difference is that I built four of them and based them all on a single power supply - a USB-C Portable Rechargable Battery.
This had been working fine with very small toy DC motors. Recently, I plugged in a larger motor - still rated for 12v and all of the Mosfets burned out, except for the one powering the large motor.
I'm hoping someone can explain why this happened and if there's a way to prevent it from happening in the future, if I rebuild the circuit.
Thanks!
I recently built some very basic linear motor drivers, pretty much identical to the schematic below.
The only difference is that I built four of them and based them all on a single power supply - a USB-C Portable Rechargable Battery.
This had been working fine with very small toy DC motors. Recently, I plugged in a larger motor - still rated for 12v and all of the Mosfets burned out, except for the one powering the large motor.
I'm hoping someone can explain why this happened and if there's a way to prevent it from happening in the future, if I rebuild the circuit.
Thanks!