16C71 IC For Experimenting With A Simple DC Servo Motor
The circuit utilizes the PIC 16C71 microcontroller, which is an 8-bit device suitable for controlling servo motors. The microcontroller operates on a supply voltage within the range of 4 to 5.5V, making it compatible with the 0 to 5V input signals typically used for servo control.
To initiate control, the microcontroller generates Pulse Width Modulation (PWM) signals. The duty cycle of these PWM signals determines the position of the servo motor. For instance, a 1.5ms pulse corresponds to the neutral position of the servo, while shorter or longer pulses (1ms or 2ms) will rotate the servo to its extreme positions (0° or 180°).
The circuit design includes a power supply unit that provides the necessary voltage to the microcontroller and servo motors. It is essential to ensure that the current rating of the power supply meets the requirements of the servo motors, particularly under load conditions.
Input signals may be derived from various sources such as potentiometers, switches, or other sensors that output a voltage within the specified range. These signals are fed into the microcontroller’s analog-to-digital converter (ADC) or directly into the GPIO pins, depending on the design. The microcontroller processes these inputs and adjusts the PWM output accordingly.
In addition to the microcontroller and servo motors, the circuit may incorporate additional components such as resistors for signal conditioning, capacitors for noise filtering, and diodes for protection against back EMF generated by the motors. Proper PCB layout and grounding practices should be followed to minimize interference and ensure reliable operation.
This configuration allows for precise control of servo motors in various applications, including robotics, automation, and remote control systems. The flexibility of the PIC 16C71 microcontroller enables the implementation of complex control algorithms, enhancing the performance and functionality of the servo control system.This is a control of servo motors in software programming using PIC 16C71 microcontroller. The input signals are between 0 - 5V delivered by .. 🔗 External reference
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