Hey all. I was doing some research for a project and came across the issue of back-EMF and, not being super experienced with electronics, it has me scared of frying my Arduino. Almost every solution I come across makes use of a diode but unfortunately, they were not provided with our course kit.
Here is the link to the motor I am using. Not mentioned on that site is the fact that there is a single 104 Capacitor bridging the terminals of the motor. Now one site I read says that for low voltage motors (I wouldn't be pushing this past 5V worst-case scenario), a capacitor should be sufficient for dealing with the back-EMF but then other sites say otherwise so I am frankly confused.
If the capacitor won't cut it, can I make use of any of the following components in order to operate the motor safely: LEDs, 1k Resistors, NPN "Low Power" Transistors (2N 3904), NPN Power Transistor (N5 192G)?
I will mention that I do not need to vary the speed/torque at all, I just simply need to turn the motor on and then off without any load attached to it.
Thank you in advance!
Here is the link to the motor I am using. Not mentioned on that site is the fact that there is a single 104 Capacitor bridging the terminals of the motor. Now one site I read says that for low voltage motors (I wouldn't be pushing this past 5V worst-case scenario), a capacitor should be sufficient for dealing with the back-EMF but then other sites say otherwise so I am frankly confused.
If the capacitor won't cut it, can I make use of any of the following components in order to operate the motor safely: LEDs, 1k Resistors, NPN "Low Power" Transistors (2N 3904), NPN Power Transistor (N5 192G)?
I will mention that I do not need to vary the speed/torque at all, I just simply need to turn the motor on and then off without any load attached to it.
Thank you in advance!