![Description](https://ae01.alicdn.com/kf/HTB1vEkqaiHrK1Rjy0Flq6AsaFXaR.jpg)
1. The current line adopts the shortest design, the path is short, can withstand more current, and has less interference to the outside world.
2. This module is used with the decoder or the power amplifier. It can filter the high frequency noise of the power supply, eliminate the interference of the mains, and purify the power supply. It can obviously improve the sound quality of the power amplifier, improve the resolution and make the background quiet.
3. Input GND needs to be connected to the ground wire of the power cable, and it can also be connected to the chassis housing.
The following are some common sense of high frequency electromagnetic interference EMI filters:
For high-frequency electromagnetic interference (EMI), generally three technologies can perform power supply filtering to suppress interference noise. In actual use, it is often mixed with two or even multiple technologies.
1. Add a capacitor between the live and neutral wires of the power supply, that is, the X capacitor. X2 type is selected, the main function is to eliminate common mode interference, and the capacity range is 0.01UF---0.47UF .
2. Add a capacitor between the power line and the ground, that is, the Y capacitor. Select Y2 type, mainly eliminate crosstalk interference, the capacity range is 2200pF ~ 0.1μF. In order to reduce the leakage current, the capacitance should not Exceed 0.1μF, and the board is 3300PF.
3. common mode rejection, common mode inductance (suppression coil on two power lines), when the rated current is large, the wire diameter of the common mode choke should be increased accordingly, so as to with large current. In addition, the appropriate Increase in inductance can improve the low-frequency attenuation characteristics, this circuit uses 10MH.
Product name:15A EMI filter
Size:95X28X1.6MM
Net weight: 50g/pc
Package:
1pc
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