JP2010272815A - 可変インダクタ - Google Patents

可変インダクタ Download PDF

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Publication number
JP2010272815A
JP2010272815A JP2009125579A JP2009125579A JP2010272815A JP 2010272815 A JP2010272815 A JP 2010272815A JP 2009125579 A JP2009125579 A JP 2009125579A JP 2009125579 A JP2009125579 A JP 2009125579A JP 2010272815 A JP2010272815 A JP 2010272815A
Authority
JP
Japan
Prior art keywords
inductor
terminal
node
inductance
variable
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
JP2009125579A
Other languages
English (en)
Japanese (ja)
Other versions
JP2010272815A5 (enExample
Inventor
Akira Tanabe
昭 田辺
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.)
Renesas Electronics Corp
Original Assignee
Renesas Electronics Corp
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 Renesas Electronics Corp filed Critical Renesas Electronics Corp
Priority to JP2009125579A priority Critical patent/JP2010272815A/ja
Priority to US12/662,678 priority patent/US8390386B2/en
Publication of JP2010272815A publication Critical patent/JP2010272815A/ja
Publication of JP2010272815A5 publication Critical patent/JP2010272815A5/ja
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/12—Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/01—Varying the frequency of the oscillations by manual means
    • H03B2201/012—Varying the frequency of the oscillations by manual means the means being an element with a variable inductance

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Coils Or Transformers For Communication (AREA)
JP2009125579A 2009-05-25 2009-05-25 可変インダクタ Withdrawn JP2010272815A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009125579A JP2010272815A (ja) 2009-05-25 2009-05-25 可変インダクタ
US12/662,678 US8390386B2 (en) 2009-05-25 2010-04-28 Variable inductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009125579A JP2010272815A (ja) 2009-05-25 2009-05-25 可変インダクタ

Publications (2)

Publication Number Publication Date
JP2010272815A true JP2010272815A (ja) 2010-12-02
JP2010272815A5 JP2010272815A5 (enExample) 2012-05-24

Family

ID=43124196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009125579A Withdrawn JP2010272815A (ja) 2009-05-25 2009-05-25 可変インダクタ

Country Status (2)

Country Link
US (1) US8390386B2 (enExample)
JP (1) JP2010272815A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2022080253A1 (enExample) * 2020-10-12 2022-04-21

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2467931A (en) * 2009-02-19 2010-08-25 Cambridge Silicon Radio Ltd Tuning circuit with mutually coupled inductors
US8976500B2 (en) * 2010-05-26 2015-03-10 Transtector Systems, Inc. DC block RF coaxial devices
US8860390B2 (en) * 2010-06-04 2014-10-14 Apple Inc. Switching power supply opposite polarity inductor arrangement
US20140028521A1 (en) * 2012-07-27 2014-01-30 Rf Micro Devices, Inc. Tuner topology for wide bandwidth
JP2015012571A (ja) * 2013-07-02 2015-01-19 ラピスセミコンダクタ株式会社 発振器及び位相同期回路
US9172353B2 (en) 2013-10-09 2015-10-27 Analog Devices, Inc. Programmable filter
HUE052115T2 (hu) * 2013-10-16 2021-04-28 Ericsson Telefon Ab L M Adó-vevõ, vevõ és kommunikációs eszköz kapcsolóelrendezéssel
US9191014B2 (en) * 2013-11-08 2015-11-17 Taiwan Semiconductor Manufacturing Company, Ltd. Method and apparatus of synchronizing oscillators
US9473152B2 (en) 2013-11-08 2016-10-18 Taiwan Semiconductor Manufacturing Company, Ltd. Coupling structure for inductive device
US10153728B2 (en) 2013-11-08 2018-12-11 Taiwan Semiconductor Manufacturing Company, Ltd. Semiconductor device and method
US10270389B2 (en) 2013-11-08 2019-04-23 Taiwan Semiconductor Manufacturing Company, Ltd. Semiconductor device and method
US9698727B1 (en) * 2015-12-10 2017-07-04 Qualcomm Incorporated Coupled inductor-based resonator
KR101912287B1 (ko) * 2017-03-31 2018-10-29 삼성전기 주식회사 튜너블 인덕터 회로

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3318086B2 (ja) 1993-11-17 2002-08-26 新潟精密株式会社 インダクタンス可変素子
JP3563113B2 (ja) 1994-07-29 2004-09-08 新潟精密株式会社 インダクタンス可変素子
US5872489A (en) * 1997-04-28 1999-02-16 Rockwell Science Center, Llc Integrated tunable inductance network and method
JP4458754B2 (ja) * 2003-03-04 2010-04-28 株式会社ルネサステクノロジ Ｌ負荷差動回路
US7091784B1 (en) * 2004-03-03 2006-08-15 Atheros Communications, Inc. Tunable circuit including a switchable inductor
JP2007005498A (ja) 2005-06-22 2007-01-11 Ricoh Co Ltd 可変インダクタおよびその製造方法
US7786836B2 (en) * 2005-07-19 2010-08-31 Lctank Llc Fabrication of inductors in transformer based tank circuitry
DE102005048409B4 (de) * 2005-10-10 2012-04-12 Infineon Technologies Ag Verstärkeranordnung für Ultra-Breitband-Anwendungen und Verfahren

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2022080253A1 (enExample) * 2020-10-12 2022-04-21
WO2022080253A1 (ja) * 2020-10-12 2022-04-21 株式会社村田製作所 可変電子素子、および回路装置
JP7569536B2 (ja) 2020-10-12 2024-10-18 株式会社村田製作所 可変電子素子、および回路装置

Also Published As

Publication number Publication date
US20100295625A1 (en) 2010-11-25
US8390386B2 (en) 2013-03-05

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