Hi!
I'm a complete electronics newbie, but I'm really into programming. I want to make a speed controller for a quad rotor helicopter, where a PIC microcontroller is to regulate the speed of each motor induvidually.
I will be using PWM to control each motor's speed. However I need to amplify the signal. The whole circuit including the motors will run at 3.7V, but the PIC controller can only supply (or sink) 25mA from a pin, a far cry from the 1.8A max. of a motor.
I'm assuming all I need is a transistor? But what kind? and do I need any other components in my circuit?
Thanks
I'm a complete electronics newbie, but I'm really into programming. I want to make a speed controller for a quad rotor helicopter, where a PIC microcontroller is to regulate the speed of each motor induvidually.
I will be using PWM to control each motor's speed. However I need to amplify the signal. The whole circuit including the motors will run at 3.7V, but the PIC controller can only supply (or sink) 25mA from a pin, a far cry from the 1.8A max. of a motor.
I'm assuming all I need is a transistor? But what kind? and do I need any other components in my circuit?
Thanks