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구분 출원국
출원년도 ~ 키워드

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등록 저소비 전력 시스템을 위한 고효율 혼합모드 전력증폭기

저소비 전력 시스템을 위한 고효율 혼합모드 전력증폭기
이미지 확대
발명자
박민, 최윤호, 박성수, 박경환, 현석봉
출원번호
11482576 (2006.07.07)
공개번호
20070085602 (2007.04.19)
등록번호
7436257 (2008.10.14)
출원국
미국
협약과제
초록
Provided is a power amplifier of a low-power consumption system that has linearity at a peak output power while increasing efficiency in a most frequently used range, and thereby enables a battery to last longer. The power amplifier includes an input impedance matcher for impedance-matching a signal input from the outside; a high-power amplifier and a low-power amplifier for amplifying the signal having passed through the input impedance matcher; an amplification controller controlling the high-power amplifier and low-power amplifier according to the power level of the input signal; an output impedance matcher for impedance-matching the signal amplified by the high-power amplifier and low-power amplifier; and a dynamic voltage supplier for supplying the low-power amplifier with a variable driving voltage. With the constitution set forth above, linearity at peak output power is maintained, and efficiency increases in the most frequently used range, thereby enabling the battery of a handheld to last longer.
KSP 제안 키워드
High power, High power amplifier(HPA), Input Impedance, Input signal, Low-Power, Output impedance, Output power, Power Consumption, Power Levels, driving voltage, dynamic voltage, high efficiency, impedance matching, increasing efficiency, low power consumption, low-power amplifier, mixed-mode, mode power, power amplifiers(PAs)
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