POWER AMPLIFIERS WITH DISCRETE POWER CONTROL
First Claim
1. A power amplifier system, comprising:
- a plurality of unit power amplifiers, wherein each unit power amplifier includes at least one respective output port, at least one respective bias control port, and at least one respective switch control port;
a plurality of primary windings, wherein each primary winding is connected to the at least one respective output port of a respective one the plurality of unit power amplifiers;
a secondary winding inductively coupled to the plurality of primary windings, wherein the secondary winding provides an overall output;
a bias controller, wherein the bias controller provides a respective bias voltage based at least in part on a level of output power to one or more of the plurality of unit power amplifiers via the at least one respective bias control port; and
a switch controller, wherein the switch controller operates to activate or deactivate at least one of the plurality of unit power amplifiers via a respective control signal to the respective switch control port.
1 Assignment
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Accused Products
Abstract
Systems and methods are provided for power amplifiers with discrete power control. The systems and methods may include a plurality of unit power amplifiers; a plurality of primary windings, wherein each primary winding is connected to at least one respective output port of a respective one the plurality of unit power amplifiers; a secondary winding inductively coupled to the plurality of primary windings, where the secondary winding provides an overall output; a bias controller, where the bias controller provides a respective bias voltage based at least in part on a level of output power to one or more of the plurality of unit power amplifiers; and a switch controller, where the switch controller operates to activate or deactivate at least one of the plurality of unit power amplifiers via a respective control signal.
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Citations
20 Claims
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1. A power amplifier system, comprising:
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a plurality of unit power amplifiers, wherein each unit power amplifier includes at least one respective output port, at least one respective bias control port, and at least one respective switch control port; a plurality of primary windings, wherein each primary winding is connected to the at least one respective output port of a respective one the plurality of unit power amplifiers; a secondary winding inductively coupled to the plurality of primary windings, wherein the secondary winding provides an overall output; a bias controller, wherein the bias controller provides a respective bias voltage based at least in part on a level of output power to one or more of the plurality of unit power amplifiers via the at least one respective bias control port; and a switch controller, wherein the switch controller operates to activate or deactivate at least one of the plurality of unit power amplifiers via a respective control signal to the respective switch control port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A power amplifier system, comprising:
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a plurality of unit power amplifiers, wherein each unit power amplifier includes a respective input port, a respective output port, a respective bias control port, and a respective switch control port; a transformer comprising a plurality of primary windings that is inductively coupled to a single secondary winding, wherein each primary winding is connected to a respective output port of the respective plurality of unit power amplifiers; and one or more controllers for biasing and activating ones of the plurality of unit power amplifiers, wherein respective outputs from one or more activated ones of the plurality of unit power amplifiers are provided to the respective primary windings, which induce voltage on the secondary winding to provide an overall output. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification