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  • Shenyang Powerange Co., Ltd

  • ADD:7/F, Software Export Base Building B-1, No.7 Puhe Street, Huanggu District, Shenyang, Liaoning Province, China 110031

  • Tel:+86-24-86121199

  • Fax:+86-24-86123399

  • Contact: Elsa Lee

  • Mobile:+86-15904050854

  • Whatsapp: +86-15904050854

  • Skype:lining2370@hotmail.com

  • Email: sales@powerange.com

What is the reason for the noise from the power adapter?
Jan 11, 2018

When the AC 220v through the transformer, through the rectifier DC, there is consumption, and these consumption will be converted to heat, so the power adapter will heat is normal. Transformer is made of silicon steel, transformer power, the magnetic flux, magnetic flux will lead to the effect of the power between the silicon steel, resulting in a buzz sound, but this is normal. But the excessive sound is not normal, the power adapter makes a lot of noise reasons, as follows:

1. Turn short circuit between turn.

2. Component damage.

3, alternating current voltage is not stable.

4. Chip breakage.