Methods of solving film capacitors noise

Film capacitors are mainly used in electronics, household electrical appliances, communications, electricity, electric railway, hybrid vehicle, wind power generation, solar power, etc. The steady development of these industries has driven the growth of the film capacitors market. During the operation, the user found that the film was noisy while working. Does this noise affect life? How to solve the noise problem?

The root cause of noise: Film capacitors may be noisy in some specific working situations, such as cross-line, step-down and other AC occasions. This is because there is a gap between the films, and vibration occurs under the action of an alternating electric field. The noise of film capacitors does not affect its use quality and life.

Noise solution:

1. See if the physical characteristics of all electronic devices are perfect.

2. Regionalization Regardless of the type of circuit, it has regional functions. It is not necessary to check each one to prevent the problem from expanding.

3. Measure according to different functions, choose different instruments.

The above three points are applicable to strong current and weak current. When purchasing film capacitors, you need to find a quality manufacturer to ensure that there is no problem with your capacitors.