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:
May. 02, 1995
Filed:
Sep. 07, 1993
Naoki Sakurai, Hitachi, JP;
Mutsuhiro Mori, Hitachi, JP;
Hidetoshi Arakawa, Kitaibaraki, JP;
Kenichi Onda, Hitachi, JP;
Hideki Miyazaki, Hitachi, JP;
Akihiko Kanouda, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Haramachi Semiconductor, Ltd., Tokyo, JP;
Abstract
A semiconductor integrated circuit unit, suitable for the control of a motor, has an integrated structure within the same semiconductor substrate, comprising an inverter circuit, drive circuits for driving the switching elements of the inverter circuit, an internal power source circuit for supplying power to the drive circuits which drive the upper arm side of the inverter circuit, and a logical circuit for transmitting a signal to the drive circuits which drive the upper arm side of the inverter circuit.