⚡ 電子電路工具

🔥 PCB功耗溫升估算Pcb Power PCB 功耗溫升估算器，基於散熱面積與對流條件按經驗模型估算板載溫升，用於散熱設計。Pcb Power - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics & Circuits tools. 🔌 PCB線寬載流PCB Trace Width & Current Calculator (IPC-2221) PCB 線寬載流計算器，按 IPC-2221 由電流、銅厚與允許溫升求最小走線線寬，用於 PCB 佈線設計。Find PCB trace width for a given current (IPC-2221). Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics ... 🔌 PCB阻抗疊層PCB Impedance Stackup PCB 阻抗疊層計算器，按 IPC-2141 由介電常數、線寬、介質厚度與銅厚求微帶線特性阻抗，用於阻抗控制。Compute PCB impedance stackup by IPC-2141 from dielectric constant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of t... 🔌 RC充放電時間常數Calc Time 2 RC 時間常數計算器。輸入電阻 R 與電容 C，計算 RC 電路時間常數 τ、各階段充放電時間曲線及截止頻率，是暫態分析、延時電路與濾波器設計的基礎工具。Calc Time 2 - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics ... ⚡ RC時間常數計算RC Time Constant Calculate RC 時間常數計算器，按 τ=R×C 求充放電時間常數與電壓曲線，用於暫態電路分析。RC Time Constant Calculate - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics & Ci... 🔧 SMT鋼網設計Smt Stencil SMT 鋼網設計器，計算開孔尺寸、面積比、寬厚比與焊膏體積，用於表面貼裝鋼網設計。Smt Stencil - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics & Circuits tools. 🔌 二極體正向壓降Current Pressure Drop 二極體正向壓降計算器，按正向電流、溫度與型別估算壓降與功耗，輔助電源與整流電路設計。Current Pressure Drop - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics & Circuit... 🔀 分壓電路計算Voltage Divider 分壓電路計算器。支援兩電阻分壓、帶載輸出與電位器三種模式，輸入阻值與輸入電壓即得輸出電壓，並可評估負載偏差，是參考電壓與偏置電路設計常用工具。Voltage Divider - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics & Circuits tools. 🔌 功放功率失真Estimate Power 1 輸入電源電壓與負載阻抗，選擇單端或 BTL 功放拓撲，計算理論最大輸出功率並給出低失真工作功率建議，輔助功放設計選型。Estimate Power 1 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics & Circuits tools. 🔌 天線頻率增益Frequency 13 天線頻率增益計算器，按頻率與天線長度求波長、理想長度、增益與駐波比，輔助射頻天線設計與匹配。Frequency 13 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics & Circuits tools. 🔌 振盪頻率計算Frequency 12 選擇振盪器型別（RC 文氏橋、LC 考畢茲或晶體），輸入相應元件引數，計算振盪頻率，是訊號源與時鐘電路設計的基礎工具。Frequency 12 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics & Circuits tools. 📡 晶振分頻計算Crystal Divider 晶振分頻計算器，求分頻係數與輸出頻率並支援 PLL 倍頻分頻，用於時鐘與頻率合成設計。Crystal Divider - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics & Circuits tools. 🔌 晶振負載電容匹配Capacitance 晶振負載電容匹配計算器。輸入晶振標稱負載電容 CL 與電路雜散電容，計算所需外接匹配電容值，確保晶振穩定起振並工作在標稱頻率，適合時鐘電路除錯。Capacitance - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics & Circuits tools. ⚡ 歐姆定律計算Ohms Law 歐姆定律計算器。支援選擇求解電壓、電流或電阻，輸入其餘兩量按 V = I×R 及其變形即時互求，是電路基礎計算與故障排查的常用工具。Ohms Law - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics & Circuits tools. 🔌 濾波截止頻率Frequency 11 濾波截止頻率計算器，支援 RC 與 LC 濾波器按元件引數求 −3dB 截止頻率，用於濾波器設計。Frequency 11 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics & Circuits tools. 🔋 電容計算器Capacitance Calculate 電容綜合計算器。支援串聯、並聯、RC 充放電與時間常數等多種模式，輸入電容引數即時得出等效值或時間常數，是電路設計與電容選型的一站式輔助工具。Capacitance Calculate - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Elec... 🔌 電容（程式碼/耐壓）換算Capacitance 解讀電容三位數字程式碼對應的皮法值，並在 pF、nF、μF 間換算，同時給出常見耐壓標註含義，適合電子選型與讀件。Capacitance - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronic... 🔌 電感感抗頻率Calc Frequency 根據電感量與頻率計算感抗，校驗單位換算（1μH=10⁻⁶H）並觀察感抗隨頻率變化，用於濾波與振盪電路引數估算，純前端。Calc Frequency - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics... 🔌 電源效率LDO/DCDCPower Supply Efficiency (LDO / DCDC) 選擇 LDO 或 DCDC 電源型別，輸入輸入與輸出電壓及電流，分別計算轉換效率與功耗，輔助電源拓撲選型與熱設計評估。Compute LDO/DCDC power efficiency from in/out voltage and current. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of th... 🔌 電路分析計算Circuit Calculator 電路分析計算器。支援 RLC 諧振、有功/無功/視在功率、分貝與電抗等模式綜合計算，輸入電路引數即時輸出結果，適合電子電路教學與除錯的快速演算。Circuit Calculator - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electro... 🔌 電阻色環讀數Resistance Resistor 電阻色環讀數器，選擇 4/5 環各環顏色自動計算阻值與公差，輔助識別色環電阻。Resistance Resistor - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics & Circuits ... 🔌 電阻計算器Resistance Calculate 電阻綜合計算器。支援串聯、並聯、色環識讀與分壓四種模式，輸入多個電阻或色環引數即可得出等效阻值或分壓比，適合電阻選型與電路配阻。Resistance Calculate - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Elect... 🎨 色環電阻識別Resistor Color Code 色環電阻識別器，支援 4/5 環色碼識別與阻值雙向換算，輔助電子元件識別。Resistor Color Code - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics & Circuits ... 🔌 運放增益頻寬設計Bandwidth 運放增益頻寬設計工具。輸入所需閉環增益與訊號頻率，計算所需的增益頻寬積 GBP 並給出選型建議，幫助電子工程師快速完成運放頻寬校核與電路設計。Bandwidth - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Electronics & Circuits tools.