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The computer's power adapter has a slight current sound.
time2006/10/11
- It is normal for the power adapter to make a sound when it is powered on. If the power adapter makes a loud sound, you need to check the cause carefully.
It is normal for the power adapter to make a sound when it is powered on; if the sound of the transformer is not very low, it is generally not power; it may be that the quality of the transformer is slightly inferior and does not affect the use; the key is to see the sound Because the voltage and current need to be converted in the power adapter; there will be a ballast working when it is energized, so it will make a weak sound; if the power adapter makes a loud sound, then you need to check the cause carefully.
Reasons for choosing Shenzhen Intermodal Electronics:
4 advantages, more stable, safer and more efficient
The latest IC program + PWM control + EMC circuit + PFC circuit design
1, the latest IC program
The clock frequency is unconditionally generated by the integrated IC and peripheral timing. The frequency is fixed and very stable, thanks to our latest IC solution and good stability.
2, PWM control
Control the time ratio of the switch to maintain a stable output, making the power consumption of the power supply small and efficient.
3. Reduce radiation and protect equipment
Increase EMC circuit systems to protect equipment from electromagnetic interference, reduce emissions, and protect equipment.
4, improve power availability
PFC circuit design maximizes the measurement of effective power usage and increases power availability.
If you are interested in the power adapter or have questions, please contact our online customer service or call: 0755-27825520, the relevant personnel of the joint power adapter manufacturer - your intimate procurement consultant.