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. 24, 2002
Filed:
Feb. 07, 2001
Yoshitsugu Inagaki, Osaka, JP;
Koji Oka, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A start-up section is made up of an input transistor configured to receive at its gate a voltage at a node which varies with the magnitude of a current flowing in one branch of a current mirror in a reference voltage generation section, an inverter for reversing a drain voltage of the input transistor, an output transistor for supplying a start-up current to the reference voltage generation section in response to an output voltage from the inverter, and a current limit transistor serially connected to the input transistor. The current limit transistor receives a reduced gate-source voltage from the reference voltage generation section for limiting a flow of current in the input transistor upon completion of restarting the reference voltage generation section.