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:
Aug. 28, 2018
Filed:
Oct. 24, 2017
Sii Semiconductor Corporation, Chiba-shi, Chiba, JP;
Teruo Suzuki, Chiba, JP;
ABLIC INC., Chiba, JP;
Abstract
A voltage regulator includes an output transistor controlled by an error amplifier, first and second resistors connected in series between an output terminal and a ground terminal via a first node, third and fourth resistors connected in series between a load voltage monitoring terminal and the ground terminal via a second node, and a fifth resistor and a switching transistor connected in series between the first node and the ground terminal. When a voltage which is supplied to a load connected to the output terminal drops due to a parasitic resistance, a voltage at the second node falls below that of the first node. The switching transistor, then, turns on to connect the fifth resistor in parallel to the second resistor to lower the voltage at the first node. Feedback of this voltage to the error amplifier raises the voltage at the output terminal to a desired value.