RX - Common-mode current choke for coax and controller cable

Noise Suppression by Common Mode Choke Coils

Common mode choke coils work as a simple wire against differential mode current (signal), while they work as an inductor against common mode current (noise).

Great article from Chuck Counselman, W1HIS

How Common Mode Chokes Work by Würth Elektronik

Example

Common-mode current isolation for coax

- for 50 Ohm RG-316 coax cable 10 turns

• bigger pic 1 to 50 MHz
• bigger pic 0,1 to 2,5 MHz

Insert LOSS of Common-mode current choke (CMCC)

- for 50 Ohm RG-316 coax cable 10 turns

• bigger pic

Common-mode current isolation for controller cable

- on small core inductors

bigger pic 0,5 to 50 MHz

bigger pic 0,1 to 2,5 MHz

KIT

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