Power line interference filter mounted on a PC board

Details Power line interference filter mounted on a PC board Power line interference filter mounted on a PC board

1984-09-14

1986-11-11

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

333185, H03H 709

Patent

active

046225269

ABSTRACT:
A power line filter for removing interference is provided which is formed on a printed circuit board which has an extended grounding area and to which are mounted parallel capacitors, a pair of line inductors and a parallel resistor. Each of the inductors is formed as multi-section coils wound on plastic bobbins and which can be machine wound and the two wound inductors are then mounted on rectangular cores of U-U or U-I-shape to form the line inductors. At least two of the capacitors are rectangular shaped and are mounted on opposite ends of the line inductors and the assembled filter is placed into a case and encapsulated through openings formed in the printed circuit board.

REFERENCES:
patent: 3644848 (1972-02-01), Kruczek
patent: 4110715 (1978-08-01), Reindel
patent: 4342013 (1982-07-01), Kallman
Zack, Albert, "Wafer Coil Technique Mechanizes Production of Transformers" Electronics, Dec. 1954, pp. 234-240.

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