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Northern IrelandTechnology and DesignQuick questions

A2 1 Electronic and Microelectronic Control Systems

Quick questions on Open- and closed-loop control: feedback, error and PID - CCEA A-Level Technology and Design

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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State the key difference between open-loop and closed-loop control. [2 marks]
What is q2?
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Write the equation for the error signal in a closed-loop system. [1 mark]
What is q3?
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What does the integral (I) term in PID control achieve? [2 marks]

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