ADAPTIVE BIAS CIRCUIT AND POWER AMPLIFIER

The present invention relates to an adaptive bias circuit and a power amplifier. The bias circuit may include an envelope detection part which detects the envelope of an input signal; a source voltage generating part which generates a source voltage by using a power voltage; and an envelope amplifyi...

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Bibliographic Details
Main Authors HONG, SONG CHEOL, JOO, TAE HWAN, JEONG, CHAN YONG, KIM, GYU SUCK
Format Patent
LanguageEnglish
Korean
Published 02.09.2015
Subjects
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
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Summary:The present invention relates to an adaptive bias circuit and a power amplifier. The bias circuit may include an envelope detection part which detects the envelope of an input signal; a source voltage generating part which generates a source voltage by using a power voltage; and an envelope amplifying part which receives a driving voltage as the source voltage and the power voltage, amplifies an envelope signal detected in the envelope detection part, and generates a first bias voltage.
Bibliography:Application Number: KR20140021384