HW#9 Electronics

  AI for solving amplifier electronics (課堂講義內有參考解答)

 建議工具

使用 Claude Sonnet 4

使用 ChatGPT 5

使用 Gemini 2.5 Pro 免費額度最高 1M tokens

使用 Grok 4

 課堂練習 

Deadline: This Saturday at 23:59

Send all the share links to  me chang212@gmail.com by email with subject HW#9  [your id, your name]

How to share a Claude link

How to share a ChatGPT link

How to share a Grok link

How to share Gemini Link

 AI for solving amplifier electronics (課堂講義內有參考解答)

1. Plot frequency response for the following amplifier circuit using matplotlib

Compare two methods Claude Sonnet 4.5 Freq resp (all in one) vs. staged

Source

artifact

AI Model Results:

• Grok 4: Share Link (considers parasitic capacitance Cπ ≈ 50 pF, Cμ ≈ 2 pF) - Bode Plot (188 kHz)
• Claude: Bode Plot gives 188 kHz, 
• ChatGPT 5: Share Link gives 187 kHz
• Gemini 2.5 Pro: Share Link gives 188 kHz

Note: Lower cut-off comes from coupling capacitors (not shown here).

Generate professional grade Bode plot.

Using AI tools to generate professional plot using Matplotlib

Bode plot

ChatGPT integrates Python environment so it directs generates Bode plot.

Bode plot

React (Claude) - Python w/Matplotlib -  - Colab - Plot

Colab

Bode plot 

1. React (Claude) - AIStudio - Python w/ Matplotlib - Colab - Plot

2. Reasoning (AIStudio) - AIStudio - Python w/ Matplotlib - Colab - Plot

2. solve for the gain

 (source)

3. Solve for the gain. Plot frequency response for the following  amplifier circuit.

Source

share (Av=-2.31, Lower Cutoff 20 Hz, Upper Cutoff 10.46MHz)

Analysis with Cπ = 22.1 pF, Cμ = 3.0 pF

Analysis with Cπ = 22.1 pF, Cμ = 3.0 pF: 

• Bode plot, fH = 10.46 MHz, RE not bypassed

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 以上參考答案

(1) -4  (2) -165 (3) -2.31 答案誤差10%以內都是正常的

3. Using A* search to design a two stage amplifier using bjt.

the first stage is class A. the second is class AB. freq response cut off at 10Hz and 25 KHz

 

Hint: A* guide