Electromagnetic interference filter

Details Electromagnetic interference filter Electromagnetic interference filter

2005-07-19

2005-07-19

Pascal, Robert (Department: 2817)

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

C333S185000, C361S302000

Reexamination Certificate

active

06919780

ABSTRACT:
An improved, in-line, bulkhead mounted, electromagnetic interference filter specifically for low frequency, high current applications such as filtering EMI from 400 Hertz aircraft power, consisting in particular of capacitive elements employing a discoidal, non-ferroelectric ceramic dielectric such as NPO/COG, configured in any of the traditional L and C filter arrangements and packaged in a center feed through, ground plane metal jacket suitable for bulkhead or through-hole mounting, offering improved performance over the full specified temperature range, greater reliability and longer useful life than, for example, similar filters employing X7R dielectric.

REFERENCES:
patent: 3249834 (1966-05-01), Schlicke et al.
patent: 3546638 (1970-12-01), Park
patent: 3548347 (1970-12-01), Miller et al.
patent: 3753168 (1973-08-01), Schor
patent: 4148003 (1979-04-01), Colburn et al.
patent: 4424551 (1984-01-01), Stevenson et al.
patent: 4464702 (1984-08-01), Miller et al.
patent: 4729743 (1988-03-01), Farrar et al.
patent: 4884171 (1989-11-01), Maserang et al.
patent: 5333095 (1994-07-01), Stevenson et al.
patent: 6225876 (2001-05-01), Akino et al.
patent: 6456481 (2002-09-01), Stevenson
Spectrum Control Inc., EMI Filters on line catalog Nov. 2004, pp. 1-18 and 61-99.
Pacific Aerospace and Electronics, EMI/RFI Filters on line catalog Nov. 2004, pp. 1-50.
Metuchen Capacitors, Inc., Feed-Thru Capacitors, EMI/RFI Suppression Filters, Minature Solder-in Filters on line catalog Nov. 2004, 11 pages.
Steve Guinta, Analog Dialogue Nov. 2004, Analog Devices, 5 pages.
American Capacitor Corporation, H series Metallized Polycarbonate Capacitors, Jul. 1997, 3 pages.
Sprague/Dearborn, Introduction to Feedthrough EMI Filters, catalog Jul. 2000, 1-31.
Revox Rifa, EMI Suppressors—Properties of Dielectrics, p. 130.
Vishay, X7R Dielectric—Typical Parameters, Jul. 25, 2002, p. 7.
RFI Corp, Tubular Filers, Aug. 14, 2002, p. 1-5, www.rficorp.com/tublars.htm.

Affiliated with

Also associated with

Rating

Electromagnetic interference filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electromagnetic interference filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic interference filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3431599