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:
Apr. 11, 2023
Filed:
Mar. 04, 2021
United Semiconductor Japan Co., Ltd., Kuwana, JP;
Yoshihiko Matsuo, Kuwana, JP;
United Semiconductor Japan Co., Ltd., Kuwana, JP;
Abstract
A voltage regulator includes an operational amplifier, a first transistor, a second transistor, a capacitor and a current sink circuit. The operational amplifier outputs a control voltage according to an amplified differential voltage between a first input terminal and a second input terminal of the operational amplifier. The first transistor includes a control terminal receiving the control voltage, a first terminal coupled to a supply terminal, a second terminal providing an output voltage, and a bulk terminal. The second transistor includes a second terminal coupled to the bulk terminal of the first transistor, and a bulk terminal coupled to the supply terminal. The capacitor includes a first terminal coupled to the bulk terminal of the first transistor, and a second terminal receiving the output voltage. The current sink circuit generates a feedback voltage according to the output voltage and output the feedback voltage to the operational amplifier.