How to convert the unit between capacitance and power consumption? There are 56 220uF capacitors on a device (arranged in 7 columns in parallel, 8 capacitors in series in each column) for energy storage, charging and discharging. Take the charging voltage to 220 V as an example, how many watts (degrees) of electricity is consumed without charging and discharging? How to calculate and convert the unit?

How to convert the unit between capacitance and power consumption? There are 56 220uF capacitors on a device (arranged in 7 columns in parallel, 8 capacitors in series in each column) for energy storage, charging and discharging. Take the charging voltage to 220 V as an example, how many watts (degrees) of electricity is consumed without charging and discharging? How to calculate and convert the unit?


The formula of electric energy stored by capacitor e = (1 / 2) Cu & # 178;
Because the total capacitance C = 7 * 220 / 8 UF = 192.5 UF
Bring in the formula e = = (1 / 2) * 192.5 * 10 ^ - 6 * 220 & # 178; Joule
=658 5J = 4.658 5 / 3600 / 1000 degrees
=1.29 × 10-6 degrees



What is the relationship between capacitance and power? Can it be converted?


The capacity and power of a capacitor are totally different. The power is the force generated by the machine driven by the power supply. The capacitor is just an instantaneous energy storage element. It is charged and discharged once per cycle. The capacitor is connected to the circuit. By using its charging and discharging principle, a certain current can only be generated in the circuit. In this way, it only has the relationship of transmitting AC energy, Can be electrical energy conversion of mechanical energy, if there is no electricity, nothing to say, so there will be no conversion relationship



Conversion of capacitance value
For example, how much f is 100nF?


1 F = 10^6uF
1uF = 10^3nF
1nF = 10^3pF
Or write this: 1F = 10 ^ 6UF = 10 ^ 9nf = 10 ^ 12PF



What is the default unit of capacitance and resistance of electronic materials in the circuit diagram? For example, how to convert the resistance 101.202.334.475 to the capacitance 102.152
227.335.475 how are these converted?


This is the same as the color ring, for example, 22K Ω resistance: the color ring is red, red and orange (223). The chip resistance is 223. It's all 223. It's not difficult to understand (223 means adding three after 22, 0 = 22000 Ω = 22K Ω). Teach you a simple and easy way to remember. No matter the capacitance or resistance, in the three digits, the front (left) is two (first, second from left)