張耀仁

星期六, 2月 28, 2026

A* vs RL

maze animate side-by-side

Circuit

Comparison (+Circuit)

Urban Traffic

星期三, 2月 25, 2026

如何分享 Claude 作品 (Artifact, 包含動畫，程式，圖片，文件...)

右上方有個copy 下拉式選單

選取 Publish 即可

如何分享 ChatGPT連結

右上方分享鍵

按壓之後跳出對話視窗

點選複製連結

已分享的連結，會看到 share

https://chatgpt.com/share/699edcfb-2db8-8009-9069-cce6f0a9420a

如果你所提供的連結屬於private chats 連結，只有在該帳號下可以觀看

你無法使用分享的原因，可能是因為你用的是app版，建議你切換到web 版

https://openai.com/

EX#1 Use AI Profesionally

AI for solving amplifier electronics (課堂講義）

建議工具

使用 Claude Sonnet 4.6

使用 ChatGPT 5

使用 Gemini 3 Pro 免費額度最高 1M tokens

使用 Grok 4

Content share

share only link, pure text, markdown (md)
no attachments accepted, no html, screen dump, or png
non-compliant homework will be rejected and returned to you

課堂練習

Deadline: This Saturday at 23:59

Send all the share links to me chang212@gmail.com by email with subject EX#1 [your id, your name]

How to publish a Claude artifact

How to share a ChatGPT link

How to share a Grok link

How to share Gemini Link

任選做一題

1. Lab Activity: 為什麼我的 AI 跟你不一樣？

2. Lab Activity: Amplifier Gain & Frequency Response Using AI-Assisted Analysis

3. Make the Bode plot of Circuit in Example 1, as below You must verify the results for correctness.

The results must be scientifically accurate.

Topology B in Schematic

4. With the following circuit and its Bode plot

textbook approximations

Think about the prompt used to generate the Bode plot. Why there is level off at high frequencies?

Hints

Reasoning/Think/Extended Thinking Mode of the AI platform you use may be required for all the problems here

AI 是放大器，不是魔術

yagi uda antenna 3d

yagi uda antenna, near field, maxwell, 3d

yagi uda antenna, near field, array factor, 3d

yagi-uda antenna, array factor, 3d

yagi uda antenna, maxwell numerical, 3d

星期六, 2月 21, 2026

Electronics, Example 7 (AB, A* Design)

Use A* to design a class AB amplifier. The first stage is class A. the second is class B. freq response cut off at 10Hz and 25 KHz

artifact (share)

schematic enhanced by Gemini 3.0 Pro

artifact enhanced by Claude (share) opus 4.5

A* optimized formulation

artifact, share

A* optimizaed

Electronics, Example 6 (2Stage, A*))

Design a Two-Stage BJT Amplifier (Parameters to optimizeRE1, RC1. RE2. RC2)

advanced version A* search for optimization, share 4-parameter

A* 8-parameter

_______________________________________________

demo, no A*

A* search for optimization. share

advanced version A* search for optimization, share

A* 8 parameters (resistors)

Electronics, Example 5 (2Stage)

Two-Stage Amplifier Analysis

Solve for the gain, plot frequency response.

Circuit parameters

Opus 4.6 extended. exact, transfer function, −3 dB crossing at 77 Hz, parameters as above original

Gain is 7943=78.0 dB considering Early voltage. 8511=78.6dB ignoring it.

exact transfer function vs. factored transfer function

bypass 47, coupling 10 micro F

(gain approximate)

_________________________________________________________________________

Artifact, Share (Cπ2=15 pF, Cμ2=3pF). Result: freq response, gain=8513, low cut off=46.5 Hz, high cut off=312kHz
Gemini: Result gain=8509, low cut off=46.5 Hz, high cut off=296 kHz @Cπ2=15 pF, Cμ2=3pF (good match!)

colab optimized (share)

Can we be more accurate with cut-off freq? Yes, use transfer function. (based on AIStudio)

Compare

Artifact, Share. Result: gain=8559 (Hybrid-π Model, With bypass capacitors, without ignoring base current loading effects)
Artifact. Result: gain=9460 (Ignored base current loading effects)
comprehensive comparison simplified, do not ignore bias network, do not ignore base current

Electronics, Example 2 (CE, Emitter Bypass)

Amplifier Circuit Analysis

Solve for the gain, plot freq response.

png by Opus 4.6 extended (share)

artifact jsx, j-grade; artifact

share (Claude running Python internally on VM)

Hybrid-π Model, With bypass capacitors, without ignoring base current loading effects on bias networks, Av=-165 (Share including frequency response).
-194 for Vc vs. Vbase, Ibase ignored (Share)

Gemini 2.5 Pro gain & lower cut off freq match Claude, 4kHz

Electronics, Example 3 (CE, Negative Feedback)

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

exact solution

why C_mu<C_pi

Miller approximation error since it ignores pole interaction effects

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

Analysis with Cπ = 22.1 pF, Cμ = 3.0 pF

Electronics, Example 1 (CE)

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

schematic

Opus 4.6 extended

Topology change, more realistic implementation

opus 6 extended

_______________

History

AI Model Results:

Grok 4: Share Link (considers parasitic capacitance Cπ ≈ 50 pF, Cμ ≈ 2 pF) - gives (188 kHz)
Claude: 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). assuming 1.0 μF

Generate professional grade Bode plot.

generate professional plot using Matplotlib

Bode plot

React (Claude) - Python w/Matplotlib - - Colab - Bode plot