DC Motor IR2104 H-BRIDGE

H-Bridge has been designed around IR2104 IC from international Rectifier. The board has been made mainly for DC-Motor application. The driver can handle load up to 8-10Amps. I have tested this board with 36V DC supply . The circuit uses N Channel IR540 MOSFETS from international rectifier. IR540 requires large heat sink for 10Amps load. …

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Sensored BLDC Motor Control

Sensored BLDC Motor Control

In a DC motor, the stator is a permanent magnet and the rotor has the windings, which are excited with a current. The current in the rotor is reversed to create a rotating or moving electric field by means of a split commutator and brushes. On the other hand, in a BLDC motor, the windings …

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Stepper Motor Interface PIC16F

Here is a simple example for PIC microcontroller interfacing  Unipolar stepping motor with assembly code. Instead of using a dedicated stepper motor driver IC like very popular L293D   PIC16F with ULN2003A were used. Just 4 I/O Pins are required to drive each coil of the motor. By energizing each coil in a particular sequence you can control the …

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1000 steps Servo motor

1000 steps Servo motor

In many project like CNC machines people use stepper motors. They are probably always more expensive than servos. They can rotate 360°, 1 step = 1,8° (mostly). Servos can rotate only from 0° to 180°, 1 step = 1°. But why are they working this way, inside them we will find potentiometer which rotates as …

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