The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 04, 2003

Filed:

Apr. 11, 2002
Applicant:
Inventors:

Satoshi Terashita, Miyagi-ken, JP;

Satoshi Sakamoto, Miyagi-ken, JP;

Hiroaki Nakaya, Miyagi-ken, JP;

Takahiro Iwakiri, Miyagi-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/12 ; H02M 1/14 ;
U.S. Cl.
CPC ...
H02M 1/12 ; H02M 1/14 ;
Abstract

The power source filter circuit is provided with a first inductor and a second inductor connected in series between an input terminal and an output terminal, a first capacitor connected between the input terminal and a reference potential point, a second capacitor connected between a contact point that connects the first inductor with the second inductor and the reference potential point, a third capacitor connected between the output terminal and the reference point, and a first resistance and a second resistance having a small resistance value connected to the second inductor in parallel respectively.


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