Integrated multi-stage electrical filter

Details Integrated multi-stage electrical filter Integrated multi-stage electrical filter

1981-09-28

1983-12-20

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

315239, 336215, 333185, H03H 709

Patent

active

044220561

ABSTRACT:
A multi-legged transformer core is employed to integrate into a single structure the discrete magnetic components required to form a multiple stage inductor-capacitor filter. The device may be employed in low pass filters used with inverters to remove high order harmonic frequency signals. The filter of the present invention is particularly useful in discharge lamp ballast circuits.

REFERENCES:
patent: 2380522 (1945-07-01), Haug
patent: 2436925 (1948-03-01), Haug et al.
patent: 3708744 (1973-01-01), Stephens et al.

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