Seminar 2 - Power and Control Subsystem
1. Key Aspects for Power Supply in Your Project
Choose Your Power Supply
- What devices need to be powered?
- Controller, console, actuators (DC motor, servo motor, stepper motor, pump, PCB…)
- What should be considered when selecting power supply?
- Rating of the devices (voltage and current), durability (no 9V), wiring (size and length)
- Where can I find the information?
- Manuals (first priority), website, ask UQ innovate, project leaders (lecturers) or tutors.
Device Specification
All different types of pumps and power supply have different voltage and current requirements.
Arduino 5v Pin with Dc Motors
Carful with connecting DC motor directly to the Arduino using the 5v pins on pin 10 & 11, they will fry the arduino due to over current (with the arduino only handling 200mA.)
3. Control Design and Linkage to other
Develop a high level design that explores the control and the input output to your vehicle.
For example:
Fluid delivery and direction and motor can be used via pump, and lots of servos.
Outputs: Controllability for Devices
- Controllability:
- Digital (Discrete) ON or OFF (e.g. switch, transistors, …) or Incremental (e.g. servo, stepper motors, …)
- Analog (PWM) full power - high power - low power - no power, PWM control (e.g. pump, motor)
Server motor control
4. Controller Coding
Arduino as an example. You can use ESP32, Raspberry pi, or no controller (hardwiring switches).
5. Examples for Control Subsystem
You may use TinkerCAD for Control systems Diagrams & Simulation