What are the possible reasons for unusual noises from a power adapter?
Release time:
2021-09-12
Precautions for Using Waterproof Desktop Power Supplies
I. Faint Current Sound
Under normal use and in relatively quiet conditions, you’ll likely hear a faint hum when you bring your ear close to the adapter. This sound is perfectly normal—there’s absolutely no need to worry.
II. Relatively loud noise
If the power adapter makes a noticeably loud noise that interferes with normal use, it’s likely due to hardware issues within the power adapter itself. We recommend either sending it to the manufacturer for repair or simply replacing your power adapter outright.
Power adapter
3. Squeaking sound
When a power adapter converts electrical power, it emits a sound at a fixed frequency. Inductors with different frequencies have different rated powers, and consequently, the loudness of the sound they produce when inducing current also varies. Under normal circumstances, you’ll typically hear a high-pitched squeaking noise—this is considered a perfectly normal phenomenon.
4. Unstable power supply
If there’s no power fluctuation or unusually loud noise, this is generally a normal phenomenon. That’s because when converting electrical energy, a fixed-frequency sound is inevitably produced. Different inductance coils, with varying rated powers, will produce sounds of different volumes when inducing current. Therefore, when purchasing such products, you should consult customer service to determine whether replacement is necessary.
Dajing Power has been dedicated to the manufacturing of specialized power supplies for 18 years, with independent R&D capabilities. We offer tailor-made power supply solutions designed specifically for your needs, fully compliant with safety regulations. Our power supplies feature high-capacity, long-life capacitors to ensure exceptional longevity. The driver chip boasts comprehensive protection functions, including overvoltage, overload, and short-circuit protection.
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Dongguan Liangrui Group
Tel: +86-18038246588
Tel: +86-13537305053
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Website: www.rico-electronic.net
Email: sales@rico-electronic.net
Address: Room 1101, Building 1, Unit 6, Shidai Zhihui, Luwu Village, Changping Town, Dongguan City, Guangdong Province
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