电阻分压“知三求一”解算、E 系列阻值选型、电容与电感多单位实时换算
Vout = Vin × R2 / (R1 + R2)
| R1 (上拉) | R2 (下拉) | 实际 Vout | 误差 | 回路电流 |
|---|
1 F = 1,000 mF = 1,000,000 μF = 10⁹ nF = 10¹² pF1 μF = 1,000 nF = 1,000,000 pF1 nF = 1,000 pF104 = $10 \times 10^4\text{ pF} = 100\text{ nF} = 0.1\ \mu\text{F}$。
1 H = 1,000 mH = 1,000,000 μH = 10⁹ nH = 10¹² pH1 mH = 1,000 μH1 μH = 1,000 nH = 1,000,000 pHR,代表小数点(如 4R7 = $4.7\ \mu\text{H}$,R47 = $0.47\ \mu\text{H}$);三位纯数字如 101 代表 $10 \times 10^1\ \mu\text{H} = 100\ \mu\text{H} = 0.1\text{ mH}$。