Series Capacitor Calculator
Calculate the total capacity based on the capacity of each series connection
1. Total charge = charge of each capacitor in series, i.e. QT=Q1=Q2=Q3....
2. Total voltage = sum of voltages of each capacitor in series, i.e. E=V1+V2+V3....
3. Reciprocal of total capacitance = sum of reciprocals of capacitances in series, i.e. 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 C2 is 22UF
The voltage across C1 is 15.62V, and the voltage across C2 is 34.74V. It can be seen that When capacitors are connected in series, the voltage and capacitance value are inversely proportional.
In actual operation, if one of the capacitors breaks down due to various reasons, the total voltage will be added to the other capacitor, which is not very reliable. Therefore, high-voltage capacitors should be treated with caution.
For high-voltage circuits, the series connection of capacitors will not be an ideal "automatic" distribution of withstand voltage. It is necessary to separately connect hundreds of KΩ or MΩ voltage-dividing resistors.