Switching power supply
AssigneeParkerVision, Inc.
InventorsGregory S. Silver, David F. Sorrells, Gregory S. Rawlins
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Abstract
Methods and systems for enhancing system efficiency in a power amplification, modulation, and transmission system are provided. Embodiments include determining output power characteristics of a selected modulation scheme to be employed in data transmission, determining a most probable output power point of operation for the selected modulation scheme based on the output power characteristics, and controlling the output stage power supply of the system to operate at substantially optimal efficiency at the most probable output power point of operation.
Claims20
A method comprising:
- determining power efficiency characteristics of an amplifier for a selected modulation scheme to be employed in data transmission;
- controlling an output stage power supply of the amplifier to operate at a first voltage, wherein the amplifier provides a first output current with a first power efficiency higher than a predetermined value at the first voltage;
- and
- adjusting the output stage power supply of the amplifier to operate at a second voltage when the first power efficiency falls below the predetermined value, wherein the amplifier provides a second output current with a second power efficiency higher than the predetermined value at the second voltage.
An apparatus comprising:
- an input voltage;
- an output voltage node;
- an aperture generator and control module configured to control a switching transistor to output a down-converted voltage based on the input voltage, wherein a first output current with a first power efficiency higher than a predetermined value is provided to the output voltage node;
- and
- a bypass switch control module configured to:
- control the aperture generator and control module to deactivate the switching transistor;
- and
- provide the input voltage to the output voltage node when the first power efficiency falls below the predetermined value, wherein a second output current with a second power efficiency higher than the predetermined value is provided to the output voltage node.
A system comprising:
- an amplifier;
- and
- a switching power supply coupled to the amplifier, wherein the switching power supply comprises:
- an input voltage;
- an output voltage node;
- an aperture generator and control module configured to control a switching transistor to output a down-converted voltage based on the input voltage, wherein a first output current with a first power efficiency higher than a predetermined value is provided to the output voltage node;
- and
- a bypass switch control module configured to:
- control the aperture generator and control module to deactivate the switching transistor;
- and
- provide the input voltage to the output voltage node when the first power efficiency falls below the predetermined value, wherein a second output current with a second power efficiency higher than the predetermined value is provided to the output voltage node.
Dependencies are inferred from the claim text.