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Mechanical System Control — H-Bridge & PID

Year
2019
Field
Mechanical engineering
Type
Undergraduate course project

Overview

Built and tuned a motor-control system to evaluate how accurately and quickly a DC motor tracks an arbitrary velocity profile, implementing an H-bridge driver and PID control on Arduino.

Key points

  • Hand-built an H-bridge driver from transistors and wires soldered on a PCB, referencing the circuit diagram.
  • Implemented PID control on Arduino for forward/backward motion and velocity tracking.
  • Tested H-bridge switching (forward & backward) and PID motor response.
  • Deepened understanding of circuit diagrams, component roles, and current/voltage considerations through hands-on build.

Figures

(a) H-bridge test (forward & backward)
(a) H-bridge test (forward & backward)
(b) PID control (motor)
(b) PID control (motor)
(c) H-bridge circuit
(c) H-bridge circuit
(d) Complete controller
(d) Complete controller
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