Patent ID: 7328040
Filing Date: 2008-02-05
Classification: H03F,H03G,H03K

Abstract:
1. Mobile communication equipment comprising: a power amplifier for amplifying a transmission signal; and a feedback circuit for providing feedback to allow said power amplifier to output a transmission-power set value, wherein said feedback circuit comprises: a transmission-power specifying unit for specifying said transmission-power set value; an error-detection unit for detecting an error between a power value obtained by detecting a portion of the power of the transmission signal amplified by said power amplifier and the transmission-power set value specified by said transmission-power specifying unit; a loop-gain generating unit for periodically switching two different loop-gain values at a predetermined time ratio to output one of them; a loop-gain multiplying unit for multiplying the error detected by said error-detection unit by the loop-gain value supplied from said loop-gain generating unit to output an error value that results from said multiplication; and a feedback-amount generating unit for integrating the error value supplied from said loop-gain multiplying unit to generate a specific amount of said feedback.