Systems and methods for combining power through a transformer

摘要

A system for combining power includes a plurality of branches and a secondary winding. The plurality of branches are configured to provide branch power. Each of the branches contribute to the branch power at non-peak power. The secondary winding is configured to combine the branch power from the plurality of branches into an output power.

主权项

1. A system for combining power, the system comprising:
a plurality of branches configured to generate branch power, each branch comprising a first power amplifier and a second power amplifier, each of the first power amplifier and the second power amplifier having an output node coupled to opposing ends of a coil, wherein the first power amplifier and the second power amplifier comprises a plurality of selectable unit cells having an ON state and an OFF state and wherein each of the plurality of branches contribute to the branch power at a non-peak power mode; a secondary winding configured to combine the branch power from the plurality of branches into an output power; and a mode select circuit configured to,
generate control signals that operate the plurality of branches in a peak power mode, wherein the control signals select each of the plurality of unit cells in both the first power amplifier and the second power amplifier of each of the plurality of branches to the ON state, wherein the unit cell provides power, andgenerate control signals that operate the plurality of branches in the non-peak power mode, wherein the control signals selects at least one unit cell in the first power amplifier or the second power amplifier of each of the plurality of branches to the ON state, wherein the unit cell provides power.