Feedback Systems
- Feedback systems are essential in electronic systems to ensure accuracy, stability, and efficiency.
- They monitor an environment and respond to stimuli, making them integral to automation and control.
Open-Loop vs. Closed-Loop Systems
Open-Loop Systems
Definition
Open-Loop System
An open-loop system operates without feedback, meaning it does not adjust based on the output.
- No Feedback: The system does not monitor or adjust its output.
- Predefined Actions: Operates based on preset instructions.
- Toasters: Heats for a set time regardless of bread color.
- Washing Machines: Runs cycles based on a timer, not cleanliness.
Open-loop systems are often simpler and cheaper but lack adaptability to changing conditions.
Closed-Loop Systems
Definition
Closed-Loop System
A closed-loop system uses feedback to adjust its output, ensuring it meets the desired criteria.
- Feedback Mechanism: Continuously monitors output and adjusts as needed.
- Adaptive: Can respond to changes in the environment.
