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 (JP)
Application Number:
PCT/JP2019/003596
Publication Date:
November 14, 2019
Filing Date:
February 01, 2019
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
H03F3/45; H03F1/32; H03F1/34
Foreign References:
| JP2002271218A | 2002-09-20 | |||
| JPH1051244A | 1998-02-20 | |||
| JPS49104549A | 1974-10-03 | |||
| JP2636238B2 | 1997-07-30 | |||
| JP2004266316A | 2004-09-24 | |||
| JP2010034944A | 2010-02-12 | |||
| JPS5698914A | 1981-08-08 | |||
| JPS57208708A | 1982-12-21 | |||
| JPH0661748A | 1994-03-04 | |||
| JPH0626290B2 | 1994-04-06 |
Other References:
See also references of EP 3793087A4
Attorney, Agent or Firm:
MARUSHIMA, Toshikazu (JP)
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