Circuit Sim Lab (電路模擬實驗室)

ai.ensconPublished by enscon.aiOfficial publisherv1.0.0Updated Oct 24, 2026

PCB calculators: trace impedance, crosstalk, diff skew, crystal load cap, Vout tolerance, inrush.

VerifiedStreamable HTTPWeb executable

Overview

AI-generated overview

Lets an assistant run PCB and circuit calculations for trace impedance, crosstalk, differential skew, crystal load capacitance, output voltage tolerance and inr

What you can do
Offers six PCB and circuit calculators: differential and single-ended impedance of microstrip or stripline from a 2D field solve, near-end and far-end crosstalk between two coupled lines, conversion of differential-pair length mismatch into time skew against an interface limit, crystal load capacitance and frequency offset from external and stray capacitance, worst-case and RSS output voltage of a feedback resistor divider, and inrush current and I²t for a load switch or direct supply.
When to use it
Use it when an assistant needs quick design-stage estimates of PCB trace impedance, crosstalk, differential-pair length mismatch, crystal load capacitance, feedback-divider output tolerance or inrush current, for early evaluation and spec comparison rather than full circuit simulation.
Requirements
Needs a connection to the remote endpoint and a Bearer API key in the Authorization header; the key is created after signing up on the service site, which offers a seven-day free trial. No local package or environment variables.
Before you install
Requires an API key in the Authorization header, a sensitive credential to keep private; continued use may require payment after the trial. Results are estimates, and some defaults such as the 5 mil USB3/PCIe figure are industry rules of thumb rather than normative text, so verify before production use.

Installation

In SourceWeft

  1. Open Circuit Sim Lab (電路模擬實驗室) in the dashboard and add it to a workspace.
  2. Connect Authorization token credentials. They are stored privately and never shown on public pages.
  3. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/ai.enscon%2Fcircuit-sim/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "circuit-sim-lab": {
      "type": "http",
      "url": "https://circuit-sim.enscon.ai/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_TOKEN>"
      }
    }
  }
}

Tools

6

impedance

差動／單端阻抗（微帶線、帶狀線）

用 2D 電場數值解算微帶線或帶狀線的差動阻抗（Zdiff、Zcomm、奇／偶模）或單端阻抗（Z0），含銅厚。回傳附適用範圍。

Parametershstwerhahbkindmode

crosstalk

串音（解析式：近端／遠端係數）

兩條耦合線的串音：偶／奇模阻抗用 2D 電場數值解，再算近端串音係數 kb、飽和比例、遠端串音係數。只回傳解析式的部分（不含工具頁的 ngspice 時域波形）。

Parametershstwerhahbtrlenkind

diff_skew

差動對對內 skew

兩條線的長度差換成時間差（ps），對照介面的上限：USB3／PCIe 用業界經驗值 5 mil（非規範原文，出處見適用範圍）；DisplayPort／HDMI 沒有預設，請用 lim 填晶片廠或規範給的值。

Parameterseelnlplimrateiface

xtal_load_cap

晶振負載電容與增益餘裕

外掛電容 C1、C2 與雜散電容算出實際負載電容 CL、頻率偏移 ppm、振盪增益餘裕、驅動功率，並給出剛好對上規格 CL 的電容值。

Parametersfc0c1c2cmcsgmclsesrvpp

output_voltage_tolerance

輸出電壓公差（回授分壓）

回授電阻分壓的輸出電壓：最壞情況（每項取上下限的所有組合）、RSS 統計；可選蒙地卡羅超規比例。

Parametersndtr1r2tctrifbdisttifbtrefvmaxvmin+3 more

inrush_current

湧入電流（負載開關控速／直接接電容）

負載開關控速上升時的充電電流、峰值電流、能量與脈衝 I²t（mode=slew），或電容直接接電源時的串聯 R-L-C 步階電流（mode=direct）。

Parametersctlhrlrstresrvincoutmodectsel

Version history

1
  1. v1.0.0LatestOct 11, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.