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:
Feb. 10, 2026
Filed:
Jul. 11, 2024
Silicon Laboratories Inc., Austin, TX (US);
Michael D. Mulligan, Austin, TX (US);
Silicon Laboratories Inc., Austin, TX (US);
Abstract
A regulated charge pump circuit supplies an output voltage. A reference generation circuit generates a feedback current used to generate a level shifted version of the output voltage as a feedback voltage. A charge pump clock generation circuit generates a clock signal for the charge pump according to the difference between a reference voltage and the feedback voltage. The charge pump boosts the reference voltage. The feedback current flows through a feedback resistor coupled between an output of the charge pump and an input of the charge pump clock generation circuit to generate the feedback voltage. An amplifier in the reference generation circuit generates a gate signal for a transistor based on a reference voltage and another feedback voltage generated using the feedback current flowing through a reference resistor. The transistor controls the feedback current, which flows through the feedback resistor, the transistor, and the reference resistor.