Lower cost wall mount AC adapter with 98% high efficiency, input ripple ≤80mV. It is suitable for mobile landline, router, attendance machine electronic scale, fingerprint meter and gate control equipment.
Tips: How to Solve the Electromagnetic Compatibility of AC Wall Adapter?
Reduce the interference of the wall mount AC adapter itself to external and other electronic equipment, use the switching frequency modulation technology to modulate the switching frequency, and disperse the energy concentrated on the modulation switching frequency and its harmonics to the frequency bands around them to reduce each frequency. The EMI amplitude at the point. Choose electronic components that are not easy to generate noise, and are not easy to conduct and radiate noise. In particular, the fast recovery diode with small reverse recovery current and short recovery time is an ideal device for the high-frequency rectification part of a switching power supply, and excellent The selection of winding components such as transformers. In order to reduce the conducted interference, the most effective method is to install electromagnetic interference filters in the input and output circuits of the switching power supply.