Qualcomm Incorporated

Amir Ziabasharhagh

Alireza Khalili

Beomsup Kim

A distributed active, power combining amplifier including at least one main amplifier having a first main portion and a second main portion, at least one peaking amplifier having a first peaking portion and a second peaking portion, and a transformer having a primary side and a secondary side, the primary side having at least a first primary segment, a second primary segment, a third primary segment and a fourth primary segment, wherein the first main portion is coupled to the first primary segment and the second primary segment, the first peaking portion is coupled to the first primary segment or the second primary segment, the second main portion is coupled to the third primary segment and the fourth primary segment, and the second peaking portion is coupled to the third primary segment or the fourth primary segment in a symmetric architecture.

Distributed active power combining amplifier

An integrated circuit is disclosed that implements a phase-locked loop with charge scaling. In an example aspect, the integrated circuit includes a charge pump, a filter, and a charge manager. The charge pump generates a current signal, and the filter includes a filter capacitor. The charge manager is coupled between the charge pump and the filter. The charge manager includes current-sampling capacitance circuitry and a charge manager controller that is coupled to the current-sampling capacitance circuitry. The current-sampling capacitance circuitry receives the current signal from the charge pump and retains charge from the current signal to create stored charge, with the stored charge including a first charge portion and a second charge portion. The charge manager controller causes the current-sampling capacitance circuitry to communicate the first charge portion to the filter capacitor and causes the current-sampling capacitance circuitry to divert the second charge portion away from the filter capacitor.

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Campbell, CA, United States of America

Amir Ziabasharhagh