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. 23, 2025
Filed:
Mar. 01, 2024
Globalfoundries U.s. Inc., Malta, NY (US);
Siva Kumar Chinthu, Bangalore, IN;
Palle Sundar Veerendranath, Bangalore, IN;
Sunil Kumar, Bangalore, IN;
Lalit Mohan Dani, Bangalore, IN;
GlobalFoundries U.S. Inc., Malta, NY (US);
Abstract
Disclosed is a charge pump circuit including: a single primary charge pump stage or multiple primary charge pump stages connected in series; a pass transistor connected between an output node of the primary charge pump stage (or of the last of the multiple primary charge pump stages, if applicable) and an output terminal; and a supplementary charge pump stage. The supplementary charge pump stage receives the same input voltage as the primary charge pump stage (or the same input voltage as the last of the multiple primary charge pump stages, if applicable) and controls the gate of the pass transistor to reduce ripple at the output terminal. A capacitive load can also be connected to the output terminal to reduce ripple and the size of the capacitive load can be selected to achieve a desired balance between the amount of ripple and circuit size.