Patent Number: 7,102,442

Title: Wireless terminals, methods and computer program products with transmit power amplifier input power regulation

Abstract: A transmit power amplifier of a wireless terminal is controlled by determining a power supply voltage applied to the transmit power amplifier, determining a power supply current provided to the transmit power amplifier, determining a relationship of the determined power supply current and the determined power supply voltage, and controlling the power supply voltage responsive to the determined relationship of the power supply current and the power supply voltage. For example, determining a relationship of the determined power supply current and the determined power supply voltage may include determining whether the power supply current meets a predetermined criterion, e.g., a predetermined current range, associated with the determined power supply voltage. The invention may be embodied as apparatus, methods, and computer program products.

Inventors: Anderson; William David (Chapel Hill, NC)

Assignee: Sony Ericsson Mobile Communications AB

International Classification: H03G 3/10 (20060101)

Expiration Date: 9/05/02018