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Beijing Zhongdian Beiyuan Electronic Technology Co., Ltd

Contact person: Manager Wang

Company telephone: 010-62014289

Mobile phone: 13718362325

website: www.cebytronic.com

Email: weihuakeji@163.com

Address: No.32, Yanqi street, Yanqi Industrial Development Zone, Huairou District, Beijing


eijing capacitor manufacturer summarizes the working principle of capacitor energy storage pulse power source

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eijing capacitor manufacturer summarizes the working principle of capacitor energy storage pulse power source

Date:2018-08-03 00:00:00 Author: Click:

Beijing capacitor manufacturers believe that capacitor energy storage is a kind of energy storage method which has been studied earlier and is widely used at present. Its technology is mature and can be used in millisecond, subtle and nanosecond pulse power devices. As an energy storage device, it has the characteristics of large capacity, small internal inductance and high voltage withstand. It can store energy up to thousands of joules to several megajoules. The disadvantage is that the energy storage density is low, and it is not economical to use the device above 10 ^ 7J.

The rated working voltage is the larger DC voltage (also known as withstand voltage) that the capacitor can work reliably in the circuit for a long time without being broken down. It is related to the structure, dielectric material and thickness of the capacitor. Generally speaking, for the capacitor with the same structure and medium and equal capacity, the higher the withstand voltage value, the larger the volume.

When a voltage is applied between the two plates of a capacitor, the electrolyte between the plates will be in an electric field, which is originally a neutral dielectric. Due to the effect of the external electric field force, the positive and negative charges in the dielectric molecules will shift a little in space (for example, the negative charge moves against the direction of the electric field), forming the so-called electric dipole, that is, the electric field inside the medium appears, which destroys the original Electrical neutral state of. This phenomenon is called polarization of the electrolyte.

It can be seen that the dielectric in the polarized state is negatively charged, but these charges are still bound by the medium itself and can not move freely. The insulation property of the dielectric has not been damaged. Only a few charges break away from the binding and form a small leakage current. If the applied voltage is continuously strengthened, a large number of polarization charges will be released from the bondage and the leakage current will be greatly increased, thus the insulation property of the dielectric will be damaged, and the two plates will be short circuited, and the function of capacitance will be completely lost. This phenomenon is called dielectric breakdown. After the dielectric breakdown, the capacitor is destroyed. Therefore, the working voltage of the capacitor should be limited and can not be increased at will.


eijing capacitor manufacturer summarizes the working principle of capacitor energy storage pulse power source

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