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:
Jun. 17, 2025
Filed:
Apr. 25, 2024
Skyworks Solutions, Inc., Irvine, CA (US);
Serge Francois Drogi, Flagstaff, AZ (US);
Florinel G. Balteanu, Irvine, CA (US);
Skyworks Solutions, Inc., Irvine, CA (US);
Abstract
Multi-level envelope tracking systems are disclosed. In certain embodiments, a method of envelope tracking includes amplifying a radio frequency signal using a power amplifier, supplying power to the power amplifier using a power amplifier supply voltage, generating a plurality of delay-controlled regulated voltages based on controlling a delay of a plurality of regulated voltages using a controllable delay circuit, generating a modulator output voltage at a modulator output of a modulator, providing filtering using a first filter coupled between the modulator output and the power amplifier supply voltage, and controlling activation of a plurality of switches of the modulator based on an envelope of the radio frequency signal. The plurality of switches are each coupled between the modulator output and a corresponding one of the plurality of delay-controlled regulated voltages.