SN754410 Dual Motor Control Circuit

Posted on Feb 7, 2014

The SN754410 Dual Motor Control circuit can be seen below. It is just about as simple as it looks with the PIC being the central processor. The main parts used and seen in the schematic below are the 7805, 18F452 and SN754410. The LM7805 +5v Regulator is used for its simplicity and the fact that the PIC uses the +5v digital standard. Since our

SN754410 Dual Motor Control Circuit
Click here to download the full size of the above Circuit.

motors are not too current demanding, this regulated supply will also be connected to the motor controller. The PIC 18F452 acts as the primary input and output control unit. It will be taking the analog input from PORTA pins 2 (RA0) and 3 (RA1), evaulating this input and then using PORTD, pins 19, 20, 21 and 22 to tell the motor controller what motors to move where and how fast. The Motor Controller has 4 input pins 1A, 2A, 3A and 4A. The corresponding output pin for each half-h-bridge is marked with a Y (i. e. 2Y). The digital supply will be used for both signal and motor control so Vcc1 and Vcc2 are tied to the +5v regulated power. Finally, two Enable pins (pin 1 and pin 16) are connected to +5v through a 10k © resistor so these h-bridges are always enabled. You could alternatively connect this to an I/O pin on the PIC to control these enable bits, but for simplicity I have not done that here.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    2 lines FET Audio Mixer
    Transceiver for 20 m band
    Crystal display (LCD) tester
    Long time delay
    Buck boost converter circuit
    No-bias L-C High-Frequency Oscillator
    car battery charger circuit
    simple headlight reminders
    LNK616PG 5 volt constant charger circuit design electronic project
    1.8V DC DC converter electronic circuit desicgn using ISL8012 IC
    Simple Motor Optical Encoder Circuit
    A third harmonic current phase protection circuits