JP2017158012A - 非接触通信媒体及びそれを用いた電子機器 - Google Patents
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33592—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer having a synchronous rectifier circuit or a synchronous freewheeling circuit at the secondary side of an isolation transformer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/338—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
Description
また本発明でいう「非接触通信媒体」はPICC(近接型ICカード)の1つである。したがって、NFC方式、Qi方式、A4WP方式、ISO/IEC14443の規格に適合するものはもちろんのこと、これら以外のすべての非接触RFタグも本発明でいう「非接触通信媒体」に含まれる。
(a)磁界に感応するコイルと、
(b)前記コイルに生起された交番の電力エネルギーを整流する整流回路と、
(c)前記整流回路から出力される整流出力を平滑し直流の電圧を生成する平滑回路と、
(d)前記平滑回路に接続される出力端子と
(e)前記出力端子から取り出される出力電圧と基準電圧とを比較する電圧検出回路と
(f)前記電圧検出回路の出力に応じて動作し前記出力電圧が所定の値に到達したときに前記コイルに生起される前記交番の電力エネルギーを減衰させるスイッチと
(g)前記出力端子に接続される負荷を有し、
(h)前記負荷のインピーダンスは、前記コイルに印加される磁界が実効値12A/m以上であるときに前記出力電圧が所定の値になるように調整されている。
図1は、本発明に係る非接触通信媒体100が例えば、磁界共鳴(共振)方式の電子機器から放射される磁界に曝される状態を示す概略外観図である。
図2は、本発明に係る非接触通信媒体のブロック回路である。以下、本発明に係る非接触通信媒体100のブロック回路図について図面を参照しながら説明する。なお、同一機能を有するものについては同一符号を付し、その繰り返しの説明は省略する。
20、20A、20B、20C、20D、20E 整流回路
30 平滑回路
40、40A 負荷インピーダンス調整手段
50 電圧検出回路
60(S1) スイッチ
70、70A 機能回路
71 論理回路
72 記憶回路
73 通信回路
100、100A、100B、100C、100D、100E、100F、100G、100H 非接触通信媒体
900、900A 無線給電器
901、901A 無線受電器
902、902A AC/DC変換部
903、903A 送電側IC
904 送電側共振回路
904A 送電側回路
905 受電側共振回路
905A 受電側回路
906、906A 受電側IC
907、907A 機能回路
C1、C2 キャパシタ
L1、L2 コイル
D1〜D4 ダイオード素子
N1、N2、N3、N4 ノード
Sm、Sm1 入力磁界
Srp 交番電圧
Vout 出力電圧
Vref 基準電圧
Claims (25)
- 磁界に感応するコイルと、
前記コイルに生起された交番の電力エネルギーを整流する整流回路と、
前記整流回路から出力される整流出力を平滑し直流の電圧を生成する平滑回路と、
前記平滑回路に接続される出力端子と、
前記出力端子から取り出される出力電圧と基準電圧とを比較する電圧検出回路と、
前記電圧検出回路の出力に応じて動作し前記出力電圧が所定の値に到達したときに前記コイルに生起される前記交番の電力エネルギーを減衰させるスイッチと、
前記出力端子に接続される負荷とを有し、
前記負荷のインピーダンスは、前記コイルに印加される磁界の実効値が12A/m以上であるときに前記出力電圧が所定の値になるように調整されている非接触通信媒体。 - 前記負荷は、前記平滑回路に並列又は直列に接続され前記負荷のインピーダンスにより前記平滑回路の放電時定数が調整されている請求項1に記載の非接触通信媒体。
- 前記負荷は固定抵抗である請求項2に記載の非接触通信媒体。
- 前記負荷は可変抵抗を含む請求項2に記載の非接触通信媒体。
- 前記負荷は30Ω〜500Ωの範囲である請求項1〜4のいずれか一項に記載の非接触通信媒体。
- 前記磁界の実効値が13.6A/m(rms)以上であるときに前記コイルが前記磁界に感応する感度が減衰される請求項1に記載の非接触通信媒体。
- 前記磁界の実効値が18A/m(rms)以上であるときに前記コイルが前記磁界に感応する感度が減衰される請求項6に記載の非接触通信媒体。
- 前記磁界の実効値が28.8A/m(rms)以上であるときに前記コイルが前記磁界に感応する感度が減衰される請求項7に記載の非接触通信媒体。
- 前記磁界の実効値はISO14443の規格に準拠する請求項1〜8のいずれか一項に記載の非接触通信媒体。
- 前記磁界の実効値である12A/m(rms)は、ISO14443、PICC1に適用されるものである請求項1に記載の非接触通信媒体。
- 前記磁界の実効値である13.6A/m(rms)は、ISO14443、PICC3に適用されるものである請求項6に記載の非接触通信媒体。
- 前記磁界の実効値である18A/m(rms)は、ISO14443、PICC6に適用されるものである請求項7に記載の非接触通信媒体。
- 前記磁界の実効値である28.8A/m(rms)は、ISO14443、PICC6に適用されるものである請求項8に記載の非接触通信媒体。
- 前記出力電圧は3Vである請求項1に記載の非接触通信媒体。
- 前記出力端子に接続される機能回路をさらに含み前記機能回路の電源電圧が前記出力端子から出力される前記出力電圧である請求項1に記載の非接触通信媒体。
- 前記機能回路の最大定格の電源電圧は前記出力電圧と同じか又はそれ以下である請求項15に記載の非接触通信媒体。
- 前記コイルと並列又は直列にキャパシタが接続されて共振回路をなし、前記共振回路の共振周波数が100KHz〜27.12MHzの範囲に選ばれるように前記コイルのインダクタンスと前記キャパシタのキャパンタンスが選ばれる請求項1に記載の非接触通信媒体。
- 前記コイルのインダクタンスの大きさをl2、前記キャパシタのキャパシタンスをc2としたときにl2とc2との積であるl2・c2は1.72×10-17(s2)〜8.27×10-16(s2)の範囲に選ばれる請求項17に記載の非接触通信媒体。
- 前記キャパシタンスc2は3pF〜170pFの範囲に選ばれる請求項18に記載の非接触通信媒体。
- 前記インダクタンスl2は0.5μH〜100μHの範囲に選ばれる請求項18に記載の非接触通信媒体。
- 前記インダクタンスl2は0.9μH〜50μHの範囲に選ばれる請求項20に記載の非接触通信媒体。
- 前記整流回路はダイオード素子で構成された全波整流回路又は半波整流回路で構成される請求項1に記載の非接触通信媒体。
- 前記ダイオード素子は、PN接合ダイオード、ショットキーバリアダイオード、及びMOSトランジスタのいずれか1つで構成される請求項22に記載の非接触通信媒体。
- 請求項1〜23のいずれか一項の非接触通信媒体との間で非接触通信を行い前記非接触通信媒体に情報の書き込み又は読み出し又は前記非接触通信媒体の前記コイルに駆動電流を供給する電子機器。
- Qi方式、A4WP方式、NFC方式及びPMA方式のいずれか1つに適用される請求項24に記載の電子機器。
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JP2019054392A (ja) * | 2017-09-14 | 2019-04-04 | オムロン株式会社 | Rfタグ |
WO2019073574A1 (ja) * | 2017-10-12 | 2019-04-18 | 三菱電機株式会社 | 誘導加熱調理器 |
JP2020072604A (ja) * | 2018-11-01 | 2020-05-07 | オムロン株式会社 | 非接触給電装置 |
JP2020089263A (ja) * | 2018-11-19 | 2020-06-04 | エルジー エレクトロニクス インコーポレイティド | 無線電力伝送装置 |
WO2022208833A1 (ja) * | 2021-03-31 | 2022-10-06 | エイターリンク株式会社 | 最大電流点追従制御を行う受電装置 |
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JP6781076B2 (ja) * | 2017-03-01 | 2020-11-04 | エイブリック株式会社 | 給電システム、受電装置、及び給電方法 |
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