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Title:
AMPLIFYING DEVICE, METHOD FOR MANUFACTURING AMPLIFYING DEVICE, AND METHOD FOR CORRECTING BIAS CURRENT
Document Type and Number:
WIPO Patent Application WO/2019/107264
Kind Code:
A1
Abstract:
An amplifying device (1) comprises: an amplifier circuit (40) in which a bias current (iB) flows; a first memory (10) that stores control information for specifying the bias current (iB) flowing in the amplifier circuit (40); a digital control circuit (20) that generates a bias current setting value for setting the bias current (iB) based on the control information; a second memory (60) that stores correction information for correcting the bias current setting value; a correction circuit (50) that corrects the bias current setting value based on the correction information; and a bias circuit (30) that determines the bias current (iB) of the amplifier circuit (40) based on the bias current setting value after correction. The correction circuit (50) corrects the bias current setting value based on the correction information obtained by inputting the bias current setting value based on the control information into the bias circuit (30) and measuring the actual bias current (iB) flowing in the amplifier circuit (40).

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Inventors:
BEPPU, Nobuyasu (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
Application Number:
JP2018/043109
Publication Date:
June 06, 2019
Filing Date:
November 22, 2018
Export Citation:
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Assignee:
MURATA MANUFACTURING CO., LTD. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
International Classes:
H03F1/02; H03F3/189
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (6F Tanaka Ito Pia Shin-Osaka Bldg., 3-10, Nishi Nakajima 5-chome, Yodogawa-ku, Osaka-cit, Osaka 11, 〒5320011, JP)
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