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Patent Searching and Data


Title:
AMPLIFIER CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2019/215968
Kind Code:
A1
Abstract:
This amplifier circuit enhances linearity without reducing gain. The amplifier circuit is provided with a transistor, a load, an impedance element, and a variable current source. The transistor amplifies an input signal. The load is connected between the transistor and a power source. The impedance element is connected between the transistor and a grounding terminal, and allows a direct current to flow therethrough. The variable current source is connected to a connection part between the transistor and the impedance element, and supplies a current corresponding to a voltage of the connection part.

Inventors:
JINGU, Yoshikatsu (4-14-1 Asahi-cho Atsugi-sh, Kanagawa 14, 〒2430014, JP)
Application Number:
JP2019/003596
Publication Date:
November 14, 2019
Filing Date:
February 01, 2019
Export Citation:
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Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORPORATION (4-14-1 Asahi-cho, Atsugi-shi Kanagawa, 14, 〒2430014, JP)
International Classes:
H03F3/45; H03F1/32; H03F1/34
Foreign References:
JP2002271218A2002-09-20
JPH1051244A1998-02-20
JPS49104549A1974-10-03
JP2636238B21997-07-30
JP2004266316A2004-09-24
JP2010034944A2010-02-12
JPS5698914A1981-08-08
JPS57208708A1982-12-21
JPH0661748A1994-03-04
Attorney, Agent or Firm:
MARUSHIMA, Toshikazu (Craft Intellectual Property, Keio Shinjuku 3-chome 2nd Bldg.5F, 3-3-2 Shinjuku, Shinjuku-k, Tokyo 22, 〒1600022, JP)
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