JP2008277882A - 増幅回路および無線通信装置 - Google Patents

増幅回路および無線通信装置 Download PDF

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Publication number
JP2008277882A
JP2008277882A JP2007115597A JP2007115597A JP2008277882A JP 2008277882 A JP2008277882 A JP 2008277882A JP 2007115597 A JP2007115597 A JP 2007115597A JP 2007115597 A JP2007115597 A JP 2007115597A JP 2008277882 A JP2008277882 A JP 2008277882A
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JP
Japan
Prior art keywords
impedance
circuit
gain
output
signal
Prior art date
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Pending
Application number
JP2007115597A
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English (en)
Japanese (ja)
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JP2008277882A5 (enExample
Inventor
Naoki Okamoto
直樹 岡本
Hiroyuki Kohama
廣行 小浜
Maki Shibata
真希 柴田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2007115597A priority Critical patent/JP2008277882A/ja
Priority to US12/109,596 priority patent/US7667541B2/en
Publication of JP2008277882A publication Critical patent/JP2008277882A/ja
Publication of JP2008277882A5 publication Critical patent/JP2008277882A5/ja
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated

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  • Amplifiers (AREA)
JP2007115597A 2007-04-25 2007-04-25 増幅回路および無線通信装置 Pending JP2008277882A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007115597A JP2008277882A (ja) 2007-04-25 2007-04-25 増幅回路および無線通信装置
US12/109,596 US7667541B2 (en) 2007-04-25 2008-04-25 Amplifier circuit and wireless communication device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007115597A JP2008277882A (ja) 2007-04-25 2007-04-25 増幅回路および無線通信装置

Publications (2)

Publication Number Publication Date
JP2008277882A true JP2008277882A (ja) 2008-11-13
JP2008277882A5 JP2008277882A5 (enExample) 2010-03-11

Family

ID=39886229

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007115597A Pending JP2008277882A (ja) 2007-04-25 2007-04-25 増幅回路および無線通信装置

Country Status (2)

Country Link
US (1) US7667541B2 (enExample)
JP (1) JP2008277882A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017169769A1 (ja) * 2016-03-31 2017-10-05 日本電信電話株式会社 ドライバ回路および光送信器

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7944290B2 (en) * 2009-01-26 2011-05-17 Sumitomo Electric Industries, Ltd. Trans-impedance amplifier
EP3504769B1 (en) 2016-08-24 2020-12-16 WiTricity Corporation Wireless power transfer systems having interleaved rectifiers
US10924075B2 (en) * 2018-06-04 2021-02-16 Analog Devices, Inc. Variable gain amplifiers with output phase invariance
KR102714685B1 (ko) 2018-11-30 2024-10-11 위트리시티 코포레이션 고전력 무선 전력 시스템에서의 저전력 여기를 위한 시스템 및 방법
EP3977592A1 (en) 2019-05-24 2022-04-06 Witricity Corporation Protection circuits for wireless power receivers
US11316375B2 (en) 2019-08-26 2022-04-26 Witricity Corporation Control of active rectification in wireless power systems
US11356079B2 (en) 2020-01-23 2022-06-07 Witricity Corporation Tunable reactance circuits for wireless power systems
EP4220894A1 (en) 2020-01-29 2023-08-02 WiTricity Corporation Auxiliary power dropout protection for a wireless power transfer system
CN115244816B (zh) 2020-03-06 2025-03-18 韦特里西提公司 无线电力系统中的有源整流

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002519920A (ja) * 1998-06-30 2002-07-02 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ インピーダンス回路網を用いる可変利得増幅器
JP2002335187A (ja) * 2001-05-10 2002-11-22 Matsushita Electric Ind Co Ltd 無線通信機
JP2002335138A (ja) * 2001-03-27 2002-11-22 St Microelectronics Sa 利得切換付き増幅器デバイス
JP2002344266A (ja) * 2001-05-18 2002-11-29 Matsushita Electric Ind Co Ltd 可変利得増幅器
JP2002359531A (ja) * 2001-03-27 2002-12-13 Matsushita Electric Ind Co Ltd 高周波可変利得増幅装置
JP2004522350A (ja) * 2001-03-29 2004-07-22 ジーシーティー セミコンダクター インコーポレイテッド 無線端末のための可変利得低雑音増幅器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6392487B1 (en) * 2000-08-02 2002-05-21 Rf Micro Devices, Inc Variable gain amplifier
US6801089B2 (en) * 2001-05-04 2004-10-05 Sequoia Communications Continuous variable-gain low-noise amplifier

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002519920A (ja) * 1998-06-30 2002-07-02 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ インピーダンス回路網を用いる可変利得増幅器
JP2002335138A (ja) * 2001-03-27 2002-11-22 St Microelectronics Sa 利得切換付き増幅器デバイス
JP2002359531A (ja) * 2001-03-27 2002-12-13 Matsushita Electric Ind Co Ltd 高周波可変利得増幅装置
JP2004522350A (ja) * 2001-03-29 2004-07-22 ジーシーティー セミコンダクター インコーポレイテッド 無線端末のための可変利得低雑音増幅器
JP2002335187A (ja) * 2001-05-10 2002-11-22 Matsushita Electric Ind Co Ltd 無線通信機
JP2002344266A (ja) * 2001-05-18 2002-11-29 Matsushita Electric Ind Co Ltd 可変利得増幅器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017169769A1 (ja) * 2016-03-31 2017-10-05 日本電信電話株式会社 ドライバ回路および光送信器
US10666212B2 (en) 2016-03-31 2020-05-26 Nippon Telegraph And Telephone Corporation Driver circuit and optical transmitter

Also Published As

Publication number Publication date
US7667541B2 (en) 2010-02-23
US20080265995A1 (en) 2008-10-30

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