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. 15, 2022
Filed:
Mar. 29, 2021
Infineon Technologies Ag, Neubiberg, DE;
Grigory Itkin, Munich, DE;
Infineon Technologies AG, Neubiberg, DE;
Abstract
An integrated circuit includes a first input port configured to receive a supply voltage from a switched-mode power supply (SMPS), where frequency components of the supply voltage include harmonics of a reference frequency, where the reference frequency is equal to a first frequency divided by a factor; and a spurious components cancellation circuit coupled to the first input port, where the spurious components cancellation circuit is configured to: generate a first clock signal having the reference frequency; adjust an amplitude and a phase of the first clock signal to form a compensation signal; and add the compensation signal to the supply voltage to produce a modified supply voltage with reduced frequency components at one or more harmonic frequencies of the reference frequency.