Electronic circuits include a diode, a BJT (Bipolar Junction Transistor), and a FET (Field Effect Transistor). In this presentation, we briefly summarize the most important characteristics of the diode, transistor, amplifier, filter, and mixer.

1. Electronic Circuit Design CHO, Yong Heui Introduction to Electronic Circuit

2. 1. Diode Nonlinear device No voltage drop External circuits

3. i D = 0, v D ≤ V D0 i D = (v D - V D0 ) / r D , v D ≥ V D0 Piecewise linear model 1. Diode

4. Device structure 2. BJT Mode EBJ CBJ Cutoff Reverse Reverse Active Forward Reverse Rev. Act. Reverse Forward Saturation Forward Forward

5. i C = I S e VBE/VT ·(1+v CE /V A ) I-V characteristics 2. BJT ∂ i C ∂ v CE r o ≡ v BE =constant -1