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:
Mar. 06, 2007
Filed:
Aug. 11, 2005
Masaharu Yuhara, Tokyo, JP;
Yasuhiro Shiraki, Tokyo, JP;
Kazuhito Okishio, Hyogo, JP;
Hiroshi Nakamura, Tokyo, JP;
Hisato Umemaru, Tokyo, JP;
Yoshimitsu Takahata, Tokyo, JP;
Yasuaki Gotoh, Tokyo, JP;
Masaharu Yuhara, Tokyo, JP;
Yasuhiro Shiraki, Tokyo, JP;
Kazuhito Okishio, Hyogo, JP;
Hiroshi Nakamura, Tokyo, JP;
Hisato Umemaru, Tokyo, JP;
Yoshimitsu Takahata, Tokyo, JP;
Yasuaki Gotoh, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
This invention provides an electronic control unit is capable of suppressing electromagnetic noise having a frequency band used in a portable wireless apparatus, and capable of exhibiting a noise resistance property against electromagnetic noise. The electronic control unit including a constant voltage power supply circuit portion, an analog signal inputting circuit portion, and a conversion processing circuit portion, an analog sensor and a driving power supply being connected to the outside, and the unit being connected to the analog sensor through a power supply line and a signal line, in which the analog signal inputting circuit portion includes a current limiting circuit portion, an integrating circuit portion, a current limiting resistor, a signal noise absorbing circuit, and a first bypass capacitor, and capacitance (C) and parasitic inductance (L) of the first bypass capacitor are set in a range of 7×10<1/[2π√(LC)]<35×10.