Adapter Manufacturer in Delhi

charger with the current sound?

Why does the charger sometimes make a current sound when it is working? Eahunt focus on charger and power adapter R & D and manufacturing manufacturers to give you a simple answer

First of all, we must understand how the sound is generated, the sound is an object vibration generated by sound waves, through a medium such as water, air or solid propagation to the human hearing organs can perceive a physical fluctuation phenomenon, people want to hear the sound has to have two conditions, one is the source of sound waves, the second is the frequency of the source of the sound waves must be in the human recognition of the interval, because of the limited human hearing.

So the charger issued a deep source of vibration inside, and vibration sound wave frequency between 20-20KHz. There are three direct sources of noise generated by the charger, transformer, inductor, capacitor. Chargers use the transformer operating frequency will be higher than 10KHz, magnetic components of the friction between the vibration will produce noise. Some ceramic capacitors use materials that have a more pronounced piezoelectric effect, which generates noise.

We users to avoid no-load power supply is able to do to eliminate the noise of a means, followed by the power supply engineers will also be reinforced from the transformer structure and so on to find ways to solve this kind of problem, refusing to current ZiZi sound. Of course, the charger is used for a long time, aging or external force charger, etc. There are cases, the inductor coil is loose, the gap becomes larger, the core is loose, etc., may make the sound of nuisance to become larger. The good thing is that Eahunt's chargers have all kinds of protection measures, with safety certification to ensure the safety of the charger.