3. Revisit to pre-requisite topics
The chapter revisits essential electrical technology theories crucial for understanding analog electronic circuits. Key focuses include Kirchhoff's Current Law (KCL) and Kirchhoff's Voltage Law (KVL), their applications in both DC and AC contexts, and Thevenin's theorem for simplifying complex circuits. It also introduces non-linear circuit characteristics and analysis methods for diodes, laying groundwork for future discussions on analog circuit designs.
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Sections
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What we have learnt
- Kirchhoff's Current Law states that the total current entering a node is equal to the total current leaving the node.
- Thevenin's Theorem allows complex circuits to be simplified into a single equivalent voltage source and resistance for easier analysis.
- AC signals can be analyzed using KCL and KVL in both time and Laplace domains, maintaining their validity across different operational contexts.
Key Concepts
- -- Kirchhoff's Current Law (KCL)
- It states that the sum of currents entering a node in an electrical circuit is equal to the sum of currents leaving the node.
- -- Kirchhoff's Voltage Law (KVL)
- It states that the sum of the electrical potential differences (voltage) around any closed network is zero.
- -- Thevenin's Theorem
- It enables one to replace a complex network of resistors and sources with a simple equivalent voltage source and series resistance.
- -- Nonlinear Circuits
- Circuits that include components, such as diodes, where the current-voltage relationship is non-linear.
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