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1. US20150381145 - Immittance conversion circuit and filter

官庁
アメリカ合衆国
出願番号 14766582
出願日 25.06.2013
公開番号 20150381145
公開日 31.12.2015
特許番号 09401695
特許付与日 26.07.2016
公報種別 B2
IPC
H03H 11/40
H電気
03基本電子回路
Hインビーダンス回路網,例.共振回路;共振器
11能動素子を用いる回路網
02多端子対回路網
40インピーダンス変換器
H03H 11/46
H電気
03基本電子回路
Hインビーダンス回路網,例.共振回路;共振器
11能動素子を用いる回路網
461端子対回路網
CPC
H03H 11/40
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
11Networks using active elements
02Multiple-port networks
40Impedance converters
H03H 11/46
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
11Networks using active elements
46One-port networks
出願人 MARCDEVICES CO., LTD.
発明者 Koichi Hirama
代理人 Cantor Colburn LLP
優先権情報 PCT/JP2013/052896 07.02.2013 WO
発明の名称
(EN) Immittance conversion circuit and filter
要約
(EN)

An immittance conversion circuit includes a first terminal and a second terminal, and includes: a conversion target circuit configured to amplify or attenuate a signal with desired frequency and gain characteristics, and output the resultant signal; a difference signal detection circuit configured to supply the input terminal of the conversion target circuit with a signal of a difference between signals generated at the first and second terminals; an immittance conversion drive circuit configured to perform differential output processing to generate a voltage of a difference between a correction voltage and the signal outputted from the conversion target circuit, and output feedback signals to an immittance conversion generation circuit; and the immittance conversion generation circuit having an immittance conversion generation action to generate, at each of the first and second terminals, a signal of currents or voltages of the corresponding inputted feedback signal and the signal inputted to the first or second terminal. A signal of a difference between the signals generated at the first and second terminals is inputted to the immittance conversion drive circuit as the correction voltage.