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:
Oct. 27, 2009
Filed:
Sep. 19, 2006
Junichi Iimura, Gunma, JP;
Katsumi Okawa, Gunma, JP;
Yasuhiro Koike, Gunma, JP;
Soichi Izutani, Gunma, JP;
Junichi Iimura, Gunma, JP;
Katsumi Okawa, Gunma, JP;
Yasuhiro Koike, Gunma, JP;
Soichi Izutani, Gunma, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
An inverter circuit overcurrent protection device in which an overcurrent detection resistor (Rs) is incorporated in a hybrid integrated circuit, in which a detection voltage from the overcurrent detection resistor (Rs) is divided by voltage dividing resistors (Rand R) and is compared with a reference voltage in an overcurrent detection circuit, for carrying out an overcurrent protection, and an external resistor is connected in series or in parallel with one of the voltage dividing resistors (Rand R) to change a division ratio so that the level of overcurrent protection can be adjusted; and an embodiment wherein, in the vicinity of a current detection terminal, a first pad (P) is connected to a detection voltage from the overcurrent detection resistance, a second pad (P) is connected to a detection voltage from the amplifier, and a third pad (P) is connected to the voltage dividing resistors, and a bonding wire () is connected between the current detection terminal one of said pads, to select one of a plurality of overcurrent protection devices.