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US 10,530,316 B2Granted
Matrix power amplifier
AssigneeFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
InventorFriedbert van Raay
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Abstract
A power amplifier includes a two-dimensional matrix of N×M active cells formed by stacking main terminals of multiple active cells in series. The stacks are coupled in parallel to form the two-dimensional matrix. The power amplifier includes a driver structure to coordinate the driving of the active cells so that the effective output power of the two-dimensional matrix is approximately N×M the output power of each of the active cells.
Claims28
A power amplifier comprising:
- an amplifier input and an amplifier output;
- a plurality of N times M active cells, wherein N and M are both ≥2 and the active cells are wired as a M×N matrix;
- and
- at least one driver structure to drive the active cells;
- wherein one of a) or b) applies, wherein:
- when a) applies, matrix rows of the M×N matrix each include M active cells coupled to be driven in parallel, wherein at least two matrix rows are coupled in series, and
- when b) applies, matrix columns of the M×N matrix each include N active cells coupled in series and driven as a stack, wherein the stacks are coupled in parallel and the matrix rows each include M active cells coupled to be driven in parallel, wherein at least two matrix rows are coupled in series;
- wherein a control terminal of each active cell is coupled to the amplifier input via a signal path that includes a driver input structure, wherein the active cells are all controllable by an electrical signal input to the amplifier input.
5 more elements
Dependencies are inferred from the claim text.