Aluminum electrolyte capacitor with reduced inductivity

Details Aluminum electrolyte capacitor with reduced inductivity Aluminum electrolyte capacitor with reduced inductivity

2001-07-12

2003-07-01

Dinkins, Anthony (Department: 2831)

Electricity: electrical systems and devices

Electrolytic systems or devices

Liquid electrolytic capacitor

C361S503000

Reexamination Certificate

active

06587331

ABSTRACT:

BACKGROUND OF THE INVENTION
The invention is directed to an aluminum electrolyte capacitor with reduced inductivity that is installed in a metal housing that is closed by a cover disk provided with metallic lead-throughs.
At high operating frequencies, aluminum electrolyte capacitors have a high impedance due to an inductive portion, the impedance being capable of deteriorating the electrical function of the capacitor in the circuit.
In order to reduce the inductive portion in the electrolyte capacitor, the electrical connections between the capacitor winding and the electrical lead-throughs in special electrolyte capacitors are designed such that the spatial distance between the two lines is minimal. The magnetic field that arises when a current flows is thus likewise minimal. Due to the high fabrication-oriented expense and the high costs connected therewith that arise from this solution, this technical approach is not very common in large round can electrolyte capacitors.
SUMMARY OF THE INVENTION
An object of the present invention is to specify an aluminum electrolyte capacitor with reduced inductivity that can be manufactured without high fabrication-oriented expense and in a beneficial manner.
According to the present invention, electrically conductive bodies are arranged at the cover disk, preferably in the region of high magnetic fields given a current flow.
The advantage is thereby achieved that currents (eddy currents) are produced in the conductive bodies by counter-induction, the currents weakening the alternating magnetic field. As a result thereof, the inductivity of the electrolyte capacitor is reduced.
The invention is explained in greater detail on the basis of the following exemplary embodiments.


REFERENCES:
patent: 1513348 (1924-10-01), Schultz
patent: 3648337 (1972-03-01), Greskamp et al.
patent: 3753051 (1973-08-01), Willy
patent: 5579203 (1996-11-01), Klaschka
patent: 5798906 (1998-08-01), Ando et al.
patent: 6201686 (2001-03-01), Hiratsuka et al.
patent: 504 408 (1930-07-01), None
patent: 38 30 094 (1989-06-01), None
patent: 297 18 066 (1998-03-01), None
patent: 0 517 936 (1992-12-01), None
patent: 0 598 256 (1993-10-01), None
patent: 1 689 638 (1977-10-01), None
patent: 5-144681 (1993-06-01), None

Affiliated with

Also associated with

Rating

Aluminum electrolyte capacitor with reduced inductivity does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aluminum electrolyte capacitor with reduced inductivity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aluminum electrolyte capacitor with reduced inductivity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3031406