Principal element of DC motor is:
* Magnet
* Armature or rotor
* Commutator
* Brush (Brushes)
* Ace or axis (Axle )
This is the diagram of DC motor:
Rotary DC motor as result is each other interaction two magnetic fields. This interaction happened caused current flowing at coil.
WAY OF OPERATION of D.C.MOTOR WITH MICROCONTROLLER
Method PWM
Method Pulse Width Modulation (PWM) be method that is effective enough to control DC motor speed. this PWM works by the way of making square wave having impulse ratio high to modulation low which has is certain, usually scale from finite 0 of 100%. This square wave has permanent frequency (usually max 10 KHZ) but pulse width high and low in 1 period which will be arranged. Impulse ratio high to this low will determine number of power given to DC motor.
This the picture;
To crank DC with PWN cannot be applied relay, but having to be applied circuit driver other DC motor. This simplest circuit is in the form of transistor compiled in Darlington. Transistor used cans be in the form of type transistor NPN type BC547. This circuit can flow until current 100 mA DC.
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