18. Linearization of non - linear circuit containing BJT - Part A
Linearization of non-linear circuits, particularly involving BJTs, is crucial for simplifying complex analyses. By focusing on a narrow range around the operating point, or Q-point, we can derive the small signal equivalent circuit, allowing for easier manipulation of circuit responses. The concepts of transfer characteristics and their linearization form the basis for effective circuit design in analog electronics.
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What we have learnt
- Linearization techniques allow simplification of non-linear circuit analysis.
- Understanding small signal equivalent circuits is essential for circuit design involving BJTs.
- The operating point (Q-point) is critical for effective linearization.
Key Concepts
- -- Linearization
- The process of approximating a non-linear function by a linear function in a small neighborhood of a point.
- -- Small Signal Equivalent Circuit
- A simplified model used to analyze the behavior of circuits with small signal variations around a predetermined operating point.
- -- Operating Point (Qpoint)
- The steady-state point of the circuit where it operates linearly and around which small signal analysis is performed.
- -- Transfer Characteristic
- The relationship between input and output voltages or currents in a circuit, often depicted graphically.
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