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logo Examples of Noise Suppression in Notebook PCs


Installing EMI filters on Interface Cable Ports

On the interface cable, the NFM21C Series (3-terminal capacitor), and BLM Series (Chip Ferrite Bead) are generally installed in combination. In some cases, the "EMIFIL®" for signal lines is used. It is important to design the circuitry to minimize the high-frequency impedance between the EMI filter’s GND and the metal plate.
Noise Emission Status
Noise Suppression Model
   
Improving the Case Shielding and GND Connection
Installing EMI filters on Interface Cable Ports
Installing EMI Filters on the DC Power Supply Input
Installing EMI filters in the LCD Panel
Improving the External Card GND
   
Examples of Noise Suppression for USB

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