Electronics Engineering Tools
110+ engineering calculators spanning RF, power, optics, IC test, and more.
Battery Lifetime Calculator
/en/battery-life-advanced
Life(h) = Capacity(Ah) × DoD × η / I_load
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Boost Converter Calculator
/en/boost-converter-calc
D = 1 - V_in/V_out
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Buck Converter Calculator
/en/buck-converter-calc
D = V_out / V_in
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Energy Storage Calculator
/en/energy-storage-calc
E_C = 0.5 × C × V²
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PCB Trace Width Temperature Rise Calculator
/en/pcb-trace-width-calc
A = (I / (k × (ΔT)^0.44))^(1/0.725)
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Heat Sink Thermal Resistance Calculator
/en/thermal-resistance-calc
R_θJA = (T_j - T_a)/P
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battery-life-advanced
电池寿命计算器
电池续航估算
Formulas
容量乘以放电深度与效率再除以负载电流
Example: Capacity=20Ah, DoD=0.8, η=0.95, I_load=5A → Life≈3.04h
额定电压乘电流与时间估算能量
Example: V=12V, I=5A, Life=3h → E=180 Wh
Calculation Steps
- 1
1. 输入电池容量、电压、DoD与负载电流
- 2
2. 计算有效可用容量
- 3
3. 用负载电流求出持续时间
- 4
4. 推算消耗的能量与电量
Use the calculator above to validate numeric results.