JP6495535B2 - アダプタ及び充電制御方法 - Google Patents
アダプタ及び充電制御方法 Download PDFInfo
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- JP6495535B2 JP6495535B2 JP2018500630A JP2018500630A JP6495535B2 JP 6495535 B2 JP6495535 B2 JP 6495535B2 JP 2018500630 A JP2018500630 A JP 2018500630A JP 2018500630 A JP2018500630 A JP 2018500630A JP 6495535 B2 JP6495535 B2 JP 6495535B2
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- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- H02M1/00—Details of apparatus for conversion
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- 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
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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
- 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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
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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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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Description
switched telephone network,PSTN)、デジタル加入者線(digital subscriber line,DSL)、デジタルケーブル、直接ケーブル接続、及び/又は別のデータネットワークを介して接続される) 及び/又は (例えば、セルラーネットワーク、無線LAN(wireless
local area network,WLAN)、例えば、デジタルビデオブロードキャスティングハンドヘルド(digital video broadcasting
handheld,DVB−H)ネットワークのデジタルテレビネットワーク、衛星ネットワーク、振幅変調−周波数変調(amplitude modulation−frequency
modulation,AM−FM)ラジオ送信機、及び/又は別の通信端末の)無線インターフェースを介して通信信号を受信、送信する装置を含むが、これらに限定されない。無線インターフェースを介して通信する通信端末は、「無線通信端末」、「無線端末」及び/又は「携帯端末」と呼ばれる。携帯端末の例として、衛星又はセルラー電話、セルラー無線電話、データ処理、ファックス及びデータ通信機能を組み合わせることのできる個人通信システム(personal communication system,PCS)端末と、無線電話、ポケベル、インターネット/イントラネットへのアクセス、Webブラウザ、ノートブック、カレンダー及び/又は全地球測位システム(global positioning system,GPS)受信機を含むパーソナルデジタルアシスタント(Personal Digital Assistant,PDA)や、一般的なラップトップ型及び/又はパームトップ型受信機又は、無線電話トランシーバーを含む他の電子装置とを含むが、これらに限定されない。
充電対象機器(例えば、端末)が電源供給装置に接続された後、充電対象機器(例えば、端末)は、データケーブルD+、D−を介して電源供給装置のタイプを検出し、電源供給装置が第2アダプタであることを検出した場合には、充電対象機器(例えば、端末)によって引き出される電流は、所定電流閾値I2(例えば1Aであってもよい)より大きくてもよい。第2アダプタの制御ユニットが、第2アダプタの出力電流が所定持続時間(例えば、連続的なT1時間)の間、I2以上であることを検出すると、制御ユニットは、充電対象機器(例えば、端末)の電源供給装置のタイプを認識することが完了したとみなし、制御ユニットは、第2アダプタと充電対象機器(例えば、端末)との間のネゴシエーションプロセスを開始し、コマンド1(上記第1コマンドに対応する)を充電対象機器(例えば、端末)に送信して、充電対象機器(例えば、端末)に対し、第2アダプタが、第2充電モードで充電対象機器(例えば、端末)を充電することに同意するか否かを問い合わせる。
第2アダプタの出力電圧は、複数のグレードを含んでもよい。制御ユニットは、充電対象機器(例えば、端末)にコマンド2(上記第2コマンドに対応する)を送信し、第2アダプタの出力電圧(現在の出力電圧)と充電対象機器(例えば、端末)のバッテリの現在の電圧とが一致しているか否かを問い合わせる。
制御ユニットが充電対象機器(例えば、端末)にコマンド3(上記第3コマンドに対応する)を送信して、充電対象機器(例えば、端末)の現在サポートする最大充電電流を問い合わせる。充電対象機器(例えば、端末)が制御ユニットにコマンド3の返信コマンドを送信して、充電対象機器(例えば、端末)の現在サポートする最大充電電流を示し、第4段階に入る。
制御ユニットは、充電対象機器(例えば、端末)が現在サポートする最大充電電流に基づいて、第2充電モードでの第2アダプタから出力された充電対象機器(例えば、端末)を充電する充電電流を決定した後、定電流充電段階である段階5に入る。
定電流充電段階に入った後、制御ユニットは、間隔をあけて充電対象機器(例えば、端末)にコマンド4(上記第4コマンドに対応する)を送信して、充電対象機器(例えば、端末)のバッテリの現在の電圧を問い合わせる。充電対象機器(例えば、端末)は、制御ユニットにコマンド4の返信コマンドを送信して、充電対象機器(例えば、端末)のバッテリの現在の電圧をフィードバックする。制御ユニットは、充電対象機器(例えば、端末)のバッテリの現在の電圧に基づいて、充電インターフェースが接触良好であるか否か、及び第2アダプタの出力電流を低下させる必要があるか否かを判断する。第2アダプタは、充電インターフェースが接触不良であると判断すると、充電対象機器(例えば、端末)にコマンド5(上記第5コマンドに対応する)を送信し、第2アダプタは、第2充電モードを終了した後、リセットして再度、段階1に入る。
2410:入力される交流を変換して、第2アダプタの出力電圧及び出力電流を取得する。
2420:第2アダプタの出力電圧を測定して、第2アダプタの出力電圧が所定の目標電圧に達するか否かを示す電圧フィードバック信号を生成する。
2430:第2アダプタの出力電流を測定して、第2アダプタの出力電流が所定の目標電流に達するか否かを示す電流フィードバック信号を生成する。
2440:電圧フィードバック信号が第2アダプタの出力電圧が目標電圧に達することを示すか、又は、電流フィードバック信号が第2アダプタの出力電流が目標電流に達することを示す場合に、第2アダプタの出力電圧及び出力電流を安定させる。
Claims (17)
- 充電対象機器への充電用アダプタであって、
前記アダプタは、
入力される交流を変換して、前記アダプタの出力電圧及び出力電流を取得する電力変換ユニットと、
入力端が前記電力変換ユニットに接続され、前記アダプタの出力電圧を測定して、前記アダプタの出力電圧が所定の目標電圧に達するか否かを示す電圧フィードバック信号を生成する電圧フィードバックユニットと、
入力端が前記電力変換ユニットに接続され、前記アダプタの出力電流を測定して、前記アダプタの出力電流が所定の目標電流に達するか否かを示す電流フィードバック信号を生成する電流フィードバックユニットと、
入力端が前記電圧フィードバックユニットの出力端及び前記電流フィードバックユニットの出力端に接続され、出力端が前記電力変換ユニットに接続され、前記電圧フィードバック信号と前記電流フィードバック信号とを受信し、前記電圧フィードバック信号が前記アダプタの出力電圧が前記目標電圧に達することを示すか、又は、前記電流フィードバック信号が前記アダプタの出力電流が前記目標電流に達することを示す場合に、前記アダプタの出力電圧及び出力電流を一定に維持する電力調整ユニットと、
充電インターフェースであって、前記アダプタが前記充電インターフェースにおけるデータ線により前記充電対象機器と双方向通信を行う充電インターフェースと、を含むことを特徴とするアダプタ。 - 前記アダプタは、前記電圧フィードバックユニットに接続され、前記目標電圧の値を調整する第1調整ユニットをさらに含むことを特徴とする請求項1に記載のアダプタ。
- 前記電圧フィードバックユニットは、
入力端が前記電力変換ユニットに接続され、前記アダプタの出力電圧をサンプリングして、第1電圧を取得する電圧サンプリングユニットと、
入力端が前記電圧サンプリングユニットの出力端に接続され、第1電圧と第1参考電圧とを比較し、第1電圧と第1参考電圧との比較結果に基づいて、電圧フィードバック信号を生成する電圧比較ユニットと、を含み、
前記第1調整ユニットは、前記電圧比較ユニットに接続され、前記電圧比較ユニットに前記第1参考電圧を提供し、前記第1参考電圧の値を調整することにより、目標電圧の値を調整することを特徴とする請求項2に記載のアダプタ。 - 前記第1調整ユニットは、制御ユニットと、デジタルポテンショメータと、を含み、
前記デジタルポテンショメータの制御端が前記制御ユニットに接続されるとともに、前記デジタルポテンショメータの出力端が前記電圧比較ユニットに接続され、
前記制御ユニットは、前記デジタルポテンショメータの電圧分割比を調整することにより、第1参考電圧の値を調整することを特徴とする請求項3に記載のアダプタ。 - 前記電圧比較ユニットは、第1オペアンプを含み、
前記電圧比較ユニットの第1オペアンプの逆相入力端は、前記第1電圧を受信するために用いられ、
前記電圧比較ユニットの第1オペアンプの同相入力端は、前記第1参考電圧を受信するために用いられ、
前記電圧比較ユニットの第1オペアンプの出力端は、前記電圧フィードバック信号を生成するために用いられることを特徴とする請求項3又は4に記載のアダプタ。 - 前記第1調整ユニットは、前記アダプタが現在使用している第1充電モード又は第2充電モードに基づいて、前記目標電圧の値を調整し、
前記アダプタの前記第2充電モードにおける充電対象機器への充電速度が、前記アダプタの前記第2充電モードにおける充電対象機器への充電速度よりも速いことを特徴とする請求項2から5のいずれか一項に記載のアダプタ。 - 前記アダプタは、前記電流フィードバックユニットに接続され、前記目標電流の電流値を調整する第2調整ユニットをさらに含むことを特徴とする請求項1から6のいずれか一項に記載のアダプタ。
- 前記電流フィードバックユニットは、
入力端が前記電力変換ユニットに接続され、前記アダプタの出力電流をサンプリングして、前記アダプタの出力電流の大きさを示す第2電圧を取得する電流サンプリングユニットと、
入力端が前記電流サンプリングユニットの出力端に接続され、前記第2電圧と第2参考電圧とを比較し、前記第2電圧と前記第2参考電圧との比較結果に基づいて、電流フィードバック信号を生成する電流比較ユニットと、を含み、
前記第2調整ユニットは、前記電流比較ユニットに接続され、前記電流比較ユニットに前記第2参考電圧を提供し、前記第2参考電圧の電圧値を調整することにより、前記目標電流の電流値を調整することを特徴とする請求項7に記載のアダプタ。 - 前記第2調整ユニットは、制御ユニットと第2のDACとを含み、
前記第2のDACの入力端が前記制御ユニットに接続され、
前記第2のDACの出力端が前記電流比較ユニットに接続され、
前記制御ユニットは、前記第2のDACにより前記第2参考電圧の電圧値を調整することを特徴とする請求項8に記載のアダプタ。 - 前記電流比較ユニットは、第2オペアンプを含み、
前記電流比較ユニットの第2オペアンプの逆相入力端は、前記第2電圧を受信するために用いられ、
前記電流比較ユニットの第2オペアンプの同相入力端は、前記第2参考電圧を受信するために用いられ、
前記電流比較ユニットの第2オペアンプの出力端は、前記電流フィードバック信号を生成するために用いられることを特徴とする請求項8又は9に記載のアダプタ。 - 前記アダプタが定電圧モードをサポートし、
前記目標電圧は、前記定電圧モードにおいて、前記定電圧モードに対応する電圧であり、
前記目標電流は、前記アダプタの前記定電圧モードにおける出力が許容される最大電流であり、
前記電力調整ユニットは、具体的には、前記電圧フィードバック信号に基づいて、前記アダプタの出力電圧を前記定電圧モードに対応する電圧に調整し、
前記電流フィードバック信号は、前記アダプタの出力電流が前記アダプタの定電圧モードにおける出力が許容される最大電流に達することを示す場合、前記アダプタの前記定電圧モードにおける出力が許容される最大電流を超えないように前記アダプタの出力電流を制御することを特徴とする請求項1から10のいずれか一項に記載のアダプタ。 - 前記アダプタが定電流モードをサポートし、
前記目標電圧は、前記定電流モードにおいて、前記アダプタの前記定電流モードにおける出力が許容される最大電圧であり、
前記目標電流は、前記定電流モードに対応する電流であり、
前記電力調整ユニットは、具体的には、前記電流フィードバック信号に基づいて、前記アダプタの出力電流を前記定電流モードに対応する電流に調整し、
前記電圧フィードバック信号は、前記アダプタの出力電圧が前記アダプタの定電流モードにおける出力が許容される最大電圧に達することを示す場合、前記アダプタの前記定電流モードにおける出力が許容される最大電圧を超えないように前記アダプタの出力電圧を制御することを特徴とする請求項1から11のいずれか一項に記載のアダプタ。 - 前記電圧フィードバックユニットは、第1オペアンプを含み、
前記電圧フィードバックユニットの第1オペアンプの出力端は、前記電圧フィードバック信号を出力するために用いられ、
前記電流フィードバックユニットは、第2オペアンプを含み、
前記電流フィードバックユニットの第2オペアンプの出力端は、前記電流フィードバック信号を出力するために用いられ、
前記電力調整ユニットは、第1ダイオードと、第2ダイオードと、光結合ユニットと、パルス幅変調PWM制御ユニットと、を含み、
前記電圧フィードバックユニットの第1オペアンプの出力端が前記第1ダイオードのカソードに接続され、前記第1ダイオードのアノードが前記光結合ユニットの入力端に接続され、前記電流フィードバックユニットの第2オペアンプの出力端が前記第2ダイオードのカソードに接続され、前記第2ダイオードのアノードが前記光結合ユニットの入力端に接続され、前記光結合ユニットの出力端が前記PWM制御ユニットの入力端に接続され、前記PWM制御ユニットの出力端が前記電力変換ユニットに接続され、前記第1オペアンプと前記第2オペアンプとのうちの何れか一つのオペアンプから出力される電圧信号が0である場合、前記第1オペアンプと前記第2オペアンプとのアノードを接続したフィードバックポイントの電圧が0になり、前記光結合ユニットが前記PWM制御ユニットに安定な電圧信号を出力し、前記PWM制御ユニットがデューティ比が一定のPWM制御信号を生成し、前記電力変換ユニットはPWM制御信号に基づいて前記アダプタの出力電圧及び出力電流を一定に維持することを特徴とする請求項1から12のいずれか一項に記載のアダプタ。 - 前記アダプタが定電流モードをサポートし、
前記アダプタは、制御ユニットを含み、
前記アダプタが充電対象機器と接続されているプロセスにおいて、前記制御ユニットは、前記充電対象機器と双方向通信して、前記定電流モードでの前記アダプタの出力を制御することを特徴とする請求項1から13のいずれか一項に記載のアダプタ。 - 前記電力変換ユニットは、
入力される交流を第1脈動直流に変換して出力する1次整流ユニットと、
前記1次整流ユニットからの第1脈動直流を、1次巻線から2次巻線に結合して第2脈動直流を取得し、2次巻線により前記第2脈動直流を出力するトランスと、
前記トランスの2次巻線から出力される第2脈動直流を整流して、第3脈動直流を取得する2次整流ユニットと、
前記2次整流ユニットから出力される第3脈動直流をフィルタして、前記アダプタの出力電圧及び出力電流を取得する2次フィルタユニットと、を含むことを特徴とする請求項1乃至14のいずれかに記載のアダプタ。 - 充電制御方法であって、前記方法は、充電対象機器への充電用アダプタに適用され、
前記方法は、
入力される交流を変換して、前記アダプタの出力電圧及び出力電流を取得するステップと、
前記アダプタの出力電圧を測定し、前記アダプタの出力電圧が所定の目標電圧に達するか否かを示す電圧フィードバック信号を生成するステップと、
前記アダプタの出力電流を測定し、前記アダプタの出力電流が所定の目標電流に達するか否かを示す電流フィードバック信号を生成するステップと、
前記電圧フィードバック信号が前記アダプタの出力電圧が前記目標電圧に達することを示すか、又は、前記電流フィードバック信号が前記アダプタの出力電流が前記目標電流に達することを示す場合に、前記アダプタの出力電圧及び出力電流を一定に維持するステップと、
充電インターフェースのデータ線により前記充電対象機器と双方向通信を行うステップと、を含むことを特徴とする充電制御方法。 - 前記充電制御方法は、前記目標電圧の値を調整するステップをさらに含み、
前記目標電圧の値を調整するステップは、
前記アダプタが現在使用している第1充電モード又は第2充電モードに基づいて、前記目標電圧の値を調整するステップを含み、
前記アダプタの前記第2充電モードにおける充電対象機器への充電速度が前記アダプタの前記第2充電モードにおける充電対象機器への充電速度より速いことを特徴とする請求項16に記載の充電制御方法。
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