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:
Mar. 15, 2022
Filed:
Apr. 27, 2020
Samsung Electronics Co., Ltd., Suwon-si, KR;
Minwoong Seo, Hwaseong-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
A charge pump circuit includes a first pump unit and a second pump unit. The first pump unit includes a first capacitor and a first transistor, and generates a first node voltage by using a clock signal. The second pump unit includes a second capacitor, a second transistor, and a third transistor, and generates a negative output voltage by using the first node voltage. The clock signal and the first node voltage are each toggled between a low-level voltage and a high-level voltage. A magnitude of an absolute value of the negative output voltage is greater than a magnitude of an absolute value of the high-level voltage of the clock signal. A body of the third transistor is electrically isolated from a body of the second transistor.