Electrical Noise Suppression and Common Mode Choke

  • Author: Rickey Cheang
Electrical Noise Suppression and Common Mode Choke

The impedance becomes much more important in the common mode choke design at higher frequency. By looking at a number of different winding techniques and flat wire vs round wire comparisons, the flat wire with rectangular core body common mode choke shows its best result with the following:
I. Fully automatic high precision winding machines insure competitive costs.
II. The single-layer winding design which lowers the skin effect and creates higher performance at a higher frequency.
III. The lower distributed capacitance means a higher performance at high frequency.
IV. The lower DCR means better thermal performance.
V. The higher power density results in up to 50% space saving.
VI. The higher reliability results in extended product life time

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