EX#5 A* 運用

  Handouts

LLM 遭遇 多個限制條件的複雜問題 

專注力模型

Comparison of LLMs

Claude Opus 4.6 optimal (visualizing how AI thinks)

Gemini 3.0 Pro 推理，optimal

ChatGPT 5, end results 流程圖  feasible, not optimal，＊

Grok 4 ，end results 流程圖 ＊

Visualization

Decision Tree (share)

location-based time-evolving diagram (space-temporal transformation ), minimalist

animation on map (national & local) share

  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#5 [your id, your name]

1. Design a Two-Stage BJT Amplifier according to goals specified using A* (Parameters to optimize RE1, RC1. RE2. RC2) 

share, artifact

2. Optimize LM3886 class AB audio amplifier IC using A* (Parameters to optimize: resistors except the load) 

LM3886

A Search Setup*

• State space: 5 components × 5 E12 values each = 3,125 possible states
• g(n): actual steps taken from the start configuration
• h(n): circuit performance cost (the heuristic) — sum of 5 weighted penalties
• f(n) = g + h: A* priority queue ordering

Cost function (5 components, all minimized):

• Gain: quadratic penalty for deviation from 26 dB (20×)
• f_low: penalty if low-frequency cutoff exceeds 10 Hz
• f_high: penalty if high-frequency cutoff falls below 100 kHz
• Bias: penalizes Rb1 ≠ Rb2 (asymmetric thermal tracking)
• Re stability: log-scale penalty away from 0.47 Ω optimum

Weight/ Forms

Are Re1 and Re2 Always Equal?

the architecture inside the LM3886 and TDA7293

optimizer A* (share)

GPU on a silicon die

 GPU

3D visualization of the GB202 fabrication process , GB202 die, process detailed (share)

EX#4 Search and Visualizaiion

 Handouts

Chain of Thought with Example, Make your AI powerful

Constraints,  Visualization on energy landscape

Search Algorithms: A*, BFS, Dijkstra

River Puzzles  (Pz 2, Pz 20) by Chain of Thought vs. Search Algortihms

BFS/A* Scalability: 8 vs. 20 persons

  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#4 [your id, your name]

任選一題

1.   

Solve Pz 2  by A*/BFS

Animate search tree with synced progression (A*/BFS side-by-side)

 2. 

Solve Pz 20 by  A*/BFS 

Animate search tree with synced progression (A*/BFS side-by-side)

3.  Solve Dog Ball Retrieval by A*/BFS 

Animate search tree with synced progression (A*/BFS side-by-side)

Circuit Design and Optimization

 

• 

  
  
  
  Basic Electronics

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

• Electronics, Example 7 (AB, A* Design)

Optimization

 Compare GD, NM Simplex, SA and A*

NM Simplex (Nelder-Mead Simplex)

NM Simplex (animated 3d)

EX#3 Chain of Thought

Handouts

Chain of Thought with Example, Make your AI powerful

Constraints,  Visualization on energy landscape

Search Algorithms: A*, BFS, Dijkstra

River Puzzles  (Pz 2, Pz 20) by Chain of Thought vs. Search Algortihms

BFS/A* Scalability: 8 vs. 20 persons

  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#3  [your id, your name]

 

1.   

Solve Pz 2 using  reasoning with each step whether correct or incorrect, showing backtracking. 

Animate the reasoning process in the above synced with river crossing scenarios.  

 2. 

Solve Pz 20 using  reasoning with each step whether correct or incorrect, showing backtracking. 

Animate the reasoning process in the above synced with river crossing scenarios.  

3. Solve Dog Ball Retrieval then animate the solution you got.

Failure example puff

 wait for winds

Analog IC Design

 

• Overview of Circuit Design
  
  
  
  

IC 

BJT Differential Pair 

schematic

IC Die — Parameter Optimization by SA 

 share

What is simulated annealing? shown on hyperfunctions comparing to other algorithms

artifact

Quadratic  Placement

ILP+ PathFinder +A* Routing

 (share)

IC Placement & Routing slides

Audio amplifier

the architecture inside the LM3886 and TDA7293

optimizer A* (share)

2-stage diff pair (share from very simple diff pair), schematic,  die, Miller Compensation, P&R, P&R+opt compo

OP 741 schematic,  die, P&R

Catch up 3/11/2026

 Claude 知識遭遇蒸餾事件

EX#2 Solving Electronic Circuits

  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#2  [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

四題任選兩題

1. 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

Reference materials:

You may want to generate Python for the Bode plots. Then you  carry it out to the end.

How to make Bode plots 

Make Bode plot:

• Use of Gemini 3.0 Pro slides (Example 1, CE)
• Use of Claude Sonnet 4.6 slides (Example 1, CE)
• 
  

ChatGPT can generate Python like Claude/Gemini, Therefore, you can study  

• Use of Gemini 3.0 Pro slides (Example 1, CE)

Key takeaways:

 

Put your Python to run on Google's colab platform. 

Plots can be made more professional and well suited for formal documents such as reports or academic journals.

You may want to label it more clearly following IEEE standard.

• how to improve Bode plot quality 
• output

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

schematic

beta=100, c_pi=100 pF, c_mu=10 pF 

 

beta=150, c_pi=20 pF, c_mu=2 pF Bode Plot (BW)

Bode plot (Color)

3. With the following circuit and its Bode plot, as in Example 3

textbook approximations

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

4. Comparing LLMs: Claude 4.6, Gemini 3.0 Pro, ChatGPT 5.0 (三選二) for the following task.

Animate in 3d (in three.js) Yagi-Uda Antenna, AI pipe inspector, or things you choose. （擇一）

The animation must be scientifically accurate. 

Hints

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

不是主修電子工程的同學，可以練習以下問題

1.

share Claude

Grok 

ChatGPT

ChatGPT 5 eats it alive.

2. Comparing LLMs: Claude 4.6, Gemini 3.0 Pro, ChatGPT 5.0 (三選二) for the following task.

Animate in 3d (in three.js) Yagi-Uda Antenna, AI pipe inspector, or things you choose. （擇一）

The animation must be scientifically accurate. 

Hints

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

3.

source

Claude man in the loop

Gemini 2.5 Pro got it right twice in a row

Catch up 3/4/2026

AI's expanding role in modern warfare

A* vs RL

maze  animate side-by-side 

Circuit

A* 

RL

Comparison (+Circuit)

Urban Traffic

RL