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AssigneeSkyworks Solutions, Inc.
InventorsSabah Khesbak, Serge Francois Drogi, Florinel G. Balteanu
Estimating the term…
Apparatus and methods for envelope tracking systems with automatic mode selection are provided herein. In certain configurations, a power amplifier system includes a power amplifier configured to provide amplification to a radio frequency signal and to receive power from a power amplifier supply voltage, and an envelope tracker including a signal bandwidth detection circuit configured to generate a detected bandwidth signal based on processing an envelope signal corresponding to an envelope of the radio frequency signal. The envelope tracker further includes a switch bank configured to receive a plurality of regulated voltages, a filter configured to filter an output of the switch bank to generate the power amplifier supply voltage, and a mode control circuit configured to control a filtering characteristic of the filter based on the detected bandwidth signal.
A mobile device comprising:
A method of envelope tracking in a mobile device, the method comprising:
A radio frequency module comprising:
Dependencies are inferred from the claim text.