Switching Power Supply

• US 20120105154A1
• Filed: 01/10/2012
• Published: 05/03/2012
• Est. Priority Date: 11/09/2006
• Status: Active Grant

• Current Assignee: ParkerVision, Inc.
• Original Assignee: ParkerVision, Inc.
• Inventors: SORRELLS, David F., SILVER, Gregory S., RAWLINS, Gregory S.
• Granted Patent: US 8,285,229 B2
• Time in Patent Office: Days
• US Class Current: 330/199
• CPC Class Codes: H03F 1/02 Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
• CPC Class Codes: H03F 1/0255 by using a signal derived from the output signal
• CPC Class Codes: H03F 3/24 of transmitter output stages
• CPC Class Codes: H04B 2001/045 with means for improving efficiency

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.

Claims

1. A method for enhancing system efficiency in a power amplifier, comprising:

determining output power characteristics of a selected modulation scheme to be employed in data transmission;

determining a probable output power point of operation for said selected modulation scheme based on said output power characteristics; and

controlling an output stage power supply within the system to operate at improved efficiency at said probable output power point of operation.