Rectifier smoothing filter

Details Rectifier smoothing filter Rectifier smoothing filter

1990-04-18

1992-03-03

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

363 45, 363 47, H03H 700, H02M 112

Patent

active

050936417

ABSTRACT:
A smoothing filter for a rectifier (LR) includes a series inductance (L) and a parallel capacitance (C). Because the capacitive voltage drop (V.sub.c) is in counterphase relative to the inductive voltage drop (V.sub.c) there is found on the series inductance (L) a point (K) where the voltage drop towards earth is zero for a given frequency (fg). The load (Z) on the rectifier is connected to this point (K) in order to achieve high attenuation the fundamental harmonic of the ripple voltage at this frequency.

REFERENCES:
patent: 1852125 (1932-04-01), Miessner
patent: 3246229 (1962-02-01), Lloyd
patent: 3660787 (1972-05-01), Mahmound et al.
patent: 3745443 (1973-07-01), Weil
patent: 3761797 (1973-09-01), Spooner
patent: 4791543 (1988-12-01), Chadwick et al.
patent: 4795959 (1989-01-01), Cooper
Derwents Abstract No. J1160 D/35, SU 777782, Nov., 1980.

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