Robot Motor Control Schematic


Posted on Feb 7, 2014

The schematic for controlling the motors is split up into three main parts, with each part having a unique functionality. The main parts used and seen in the schematic below are the 18F252, SN754410 and 2N2222 Transistors. Seen at the very top, the microcontroller circuit consists of the PIC 18F252, its 40 MHz crystal, a few LEDs, the enable l


Robot Motor Control Schematic
Click here to download the full size of the above Circuit.

ines going to the motor controller and the PWM signals going to the PWM inversion circuit and the motor controller. Two transistors ( 2n2222 ) are used to invert the two PWM signals that are travelling to the motor controller. This is done because the motor controller needs to have both the `positive` PWM signal and the `negative` PWM signal in what is called a differential pair. The motor controller cannot control our DC motors without both the positive and negative PWM signals. The main part used for the motor control circuit is the SN754410. This is a quadrule half h-bridge motor controller IC. To use this motor controller, you must input a differential PWM signal, provide power and ground and enable the bank to start-up your motors. The control signals that will tell the motor controller to do all this will be sent from the PIC.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Room Noise Detector
    Tube Headphone Amplifier/Preamp
    Monostable-operation
    Modulated Light DX
    basic power amplifier ic lm12 circuit
    temperature sensor relay switch circuit
    Power Buzzer
    Low Cost Monolithic Voltage-to-Frequency Converter
    555 mark space
    Temperature-Controlled Soldering Iron
    200mA Buck-Boost Synchronous DC/DC Converters
    quartz clock timebase
    Ultrasonic transmitter circuit 555
    High sensitivity alarm
    Multifunctional Hi-Fi preamplifiers
    Common emitter amplifier input and output signals of the phase relationship



    Top