❯ 對 @test_board.kicad_sch 畫反向放大器電路，倍率設計 10 倍
Read test_board.kicad_sch (288 lines)

● Skill(konnect)
Successfully loaded skill

● kicad-schematic-build-agent(Build inverting amplifier circuit)
Backgrounded agent (↓ to manage · ctrl+o to expand)
Allowed by auto mode classifier

我已啟動一個專門的 KiCad schematic 建構代理程式，正在依 Konnect 標準流程幫你在 test_board.kicad_sch 上畫反向放大器電路：

設計規格：
- 拓撲：反向放大器 (Inverting Amplifier)，使用現有的 LM358
- 增益：|Vout/Vin| = Rf/Rin = 10（Rin = 1kΩ，Rf = 10kΩ）
- 同相輸入端接地，輸出接 VOUT 網路標籤
- 雙電源 ±12V 供電，各配 0.1µF 去耦電容
- 完成後會跑 ERC 驗證

代理程式在背景執行中，完成後我會回報結果。

✻ Waiting for 1 background agent to finish

● Agent "Build inverting amplifier circuit" finished · 1m 1s

工具現在已經同步好了，我直接接手完成這個電路。

  Called konnect 7 times

Components placed and snapped to grid. Now let's fetch exact pin locations for wiring.

  Called konnect

需要修正 R1 位置，使其對齊反相輸入腳 (pin2, y=102.87) 而非同相輸入腳。

  Called konnect 26 times

Now let's add the remaining power/decoupling wires and the net labels.

  Called konnect 11 times

All coordinates snapped exactly as intended (no unexpected grid shifts). Now let's add the VIN/VOUT net labels.

  Called konnect 2 times

Now let's verify overlaps, orphans, and run ERC.

  Called konnect 6 times

ERC lives in sch_export and verification. Let's load those.

  Called konnect

There's also a fix_connectivity tool that snaps near-miss endpoints — useful given the dangling-wire report. Let's run that first, then ERC.

  Called konnect 5 times

Now add the corrected routing that avoids crossing C2's GND pin.

  Called konnect 11 times

Now let's place the unused second op-amp (unit B) and safely terminate it to satisfy ERC.

  Called konnect 41 times

Now let's re-run ERC.

  Called konnect 5 times

Found it — a leftover wire from my first (buggy) routing attempt that I forgot to delete. Removing it now.

  Called konnect 3 times

ERC now passes with 0 errors — only one benign warning remains (VIN is an external input stimulus point, so it naturally has only one connection, which is expected and fine).

  Called konnect

Circuit complete and verified. Here's a summary of what was built on test_board.kicad_sch:

反向放大器 (Inverting Amplifier) — 增益 10 倍

┌────────────────────┬──────────┬────────────────┐
│        元件        │   數值   │      功能      │
├────────────────────┼──────────┼────────────────┤
│ U1 (LM358, unit A) │ —        │ 運算放大器主體 │
├────────────────────┼──────────┼────────────────┤
│ R1                 │ 1kΩ      │ 輸入電阻 Rin   │
├────────────────────┼──────────┼────────────────┤
│ R2                 │ 10kΩ     │ 回授電阻 Rf    │
├────────────────────┼──────────┼────────────────┤
│ C1, C2             │ 0.1µF ×2 │ V+/V- 去耦電容 │
└────────────────────┴──────────┴────────────────┘

- 增益 = -Rf/Rin = -10kΩ/1kΩ = -10（|Vout/Vin| = 10）
- VIN → R1 → U1 反相輸入 (pin2)；R2 從輸出回授到同一節點
- 同相輸入 (pin3) 接 GND
- 雙電源 ±12V 供電，各配 0.1µF 去耦電容，並加上 PWR_FLAG 滿足 ERC 電源驅動檢查
- U1 未使用的第二組運放 (unit B) 已妥善端接（- 輸入接輸出、+ 輸入接地），避免浮接警告
- 已執行 annotate_schematic 完成標號

ERC 驗證結果：0 errors，僅 1 個良性 warning（VIN 只連接一個接腳，這是外部輸入訊號點的正常現象）。

過程中修正了兩個佈線失誤：一是回授電阻走線意外壓到 R1/U1 pin2 節點造成短路風險（已重新繞線避開）；二是最初 +12V 佈線草稿留下一段殘留線，把 +12V 誤接到 VOUT，已刪除修正。

檔案位置：C:\Users\User\Documents\KiCad\10.0\projects\test_board\test_board.kicad_sch，全程透過 Konnect MCP 工具修改，未直接編輯檔案文字。

✻ Worked for 14m 22s