Online capacitor series calculator
Calculate the optional capacitance according to the required capacity：
Desired capacitance:
Selection order
recovery
calculate
result1：
Capacitor1
result2
Actual capacitance after series connection
error (%)
result2：
Capacitor1
Capacitor2
Calculate the total capacity based on each series capacity：
Capacitor1
Capacitor2
recovery
calculate
result：
Equivalent capacity
1. The total power = the power of each capacitor in series, that is, QT=Q1=Q2=Q3....
2. The total voltage = the sum of the voltages of the capacitors in series, that is, E=V1+V2+V3...
3. The reciprocal of the total capacitance = the reciprocal sum of the capacitances of each series, that is, 1 / CT = 1 / C1 + 1 / C2 +………
4. Total energy = the sum of the energy of each series capacitor, that is, WT=W1+W2+W3...
Withstand voltage calculation formula:
Total voltage: U
U1=C2*U/(C1+C2)
U2=C1*U/(C1+C2)
Example: C1 is 10UF and C2 is 22UF. The voltage across C1 is 15.62V and the voltage across C2 is 34.74V. It can be seen that the voltage and capacitance value are inversely proportional when the capacitors are connected in series.
However, in actual work, one of the capacitors is broken down due to various reasons, so the total voltage will all be added to the other capacitor, which is not very reliable. Therefore, the series connection of high-voltage capacitors should be treated with caution.
For circuits with higher voltages, the series connection of capacitors will not be ideal for automatic" distribution of the withstand voltage. Separate voltage dividers of hundreds of KΩ or MΩ must be added separately. "
