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.
Patent No.:
Date of Patent:
Dec. 28, 2010
Filed:
Apr. 04, 2003
Kinya Nakatsu, Hitachinaka, JP;
Koichi Yahata, Hitachinaka, JP;
Masato Takahashi, Hitachinaka, JP;
Mitsufumi Iwanaka, Hitachi, JP;
Ryuichi Saito, Hitachi, JP;
Haruki Hamada, Naka, JP;
Kinya Nakatsu, Hitachinaka, JP;
Koichi Yahata, Hitachinaka, JP;
Masato Takahashi, Hitachinaka, JP;
Mitsufumi Iwanaka, Hitachi, JP;
Ryuichi Saito, Hitachi, JP;
Haruki Hamada, Naka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
To provide a power converter equipped with a current detector which is small and can carry out highly accurate current detection, in the power converter equipped with a power modulehaving a power controlling semiconductor elementdisposed on the power module basewith a ceramic substrateinterposed, and a control unitfor controlling the operation of the power controlling semiconductor element, a current detectorhaving a magnetic detecting unitwhich is disposed in the detection conductor, electrically connected to the power controlling semiconductor elementand disposed on the power module basewith the ceramic substrateinterposed, and has a magnetic detecting semiconductor elementelectrically connected to the control unitis provided in the power module; and relative distance between the detection conductorand the power module baseis larger than the relative distance between the current detection electrodeand the power module base