JP2017529049A - 絶縁型コンバータにおけるコンスタント・オン・タイム(cot)制御 - Google Patents
絶縁型コンバータにおけるコンスタント・オン・タイム(cot)制御 Download PDFInfo
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- JP2017529049A JP2017529049A JP2017515826A JP2017515826A JP2017529049A JP 2017529049 A JP2017529049 A JP 2017529049A JP 2017515826 A JP2017515826 A JP 2017515826A JP 2017515826 A JP2017515826 A JP 2017515826A JP 2017529049 A JP2017529049 A JP 2017529049A
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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
- H02M3/33507—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 with automatic control of the output voltage or current, e.g. flyback converters
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/565—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
-
- 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
- H02M3/33507—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 with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33515—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 with automatic control of the output voltage or current, e.g. flyback converters with digital control
-
- 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
- H02M3/33507—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 with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33523—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 with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Dc-Dc Converters (AREA)
- Electronic Switches (AREA)
Abstract
Description
本願は、本願の共通出願人によって2014年9月19日に提出された中国(CN)特許出願第201410483703.4号、および2014年12月7日に提出された米国(US)特許出願第14/562,727号に優先権を主張する。中国特許出願第201410483703.4号および米国特許出願第14/562,727号の開示全体を引用により本文書に援用する。
Claims (12)
- 入力電圧を受け取る入力端子に接続されるコンスタント・オン・タイム(COT)絶縁型コンバータであって、
一次側及び二次側を備える変圧器であって、前記一次側が入力端子に接続され、前記二次側が負荷に接続され、前記二次側のリップル信号が前記負荷上に出力電圧及び出力電流を生成する変圧器と、
前記変圧器の前記二次側及び前記負荷に接続されるプロセッサであって、前記リップル信号のAC成分のAC電圧及び前記出力電流を捕捉し、前記出力電流を処理電圧に変換して、所定基準電圧、前記AC電圧、及び前記処理電圧に基づいて制御信号を生成するプロセッサと、
前記プロセッサに接続される少なくとも1つの結合素子であって、前記変圧器の前記一次側及び前記二次側にそれぞれ接続されて、前記制御信号を前記二次側から前記一次側に送信する結合素子と、
前記変圧器の前記一次側及び前記結合素子に接続されるドライバであって、前記制御信号を受け取り増幅して、デジタル信号を生成するドライバと、
前記一次側及び前記ドライバに接続される電子スイッチであって、前記デジタル信号を受け取り、それに応じてオン/オフ状態を変更し、前記入力端子から前記変圧器に送信される入力電圧を制御することによって、前記出力電圧及び前記出力電流を調節する電子スイッチと、
を備える、コンスタント・オン・タイム絶縁型コンバータ。 - 前記電子スイッチのオン/オフ状態の期間が、前記制御信号が負から正に変化する瞬間と前記制御信号が正から負に変化する瞬間とによって決定される、請求項1に記載のコンスタント・オン・タイム絶縁型コンバータ。
- 前記ドライバが前記入力端子に接続されて前記入力電圧を受け取ることによって、前記電子スイッチに送信される第1のパルス信号を生成し、前記電子スイッチが前記第1のパルス信号に応じて状態を変更し、前記入力端子から前記変圧器に送信される入力電圧を制御することによって、前記リップル信号、前記出力電圧、及び前記出力電流を生成し、その後、前記プロセッサが前記制御信号を生成し、前記制御信号の受信時、前記ドライバが前記第1のパルス信号の生成を停止する、請求項1に記載のコンスタント・オン・タイム絶縁型コンバータ。
- 前記変圧器の前記二次側に接続されるアノードと、前記負荷に接続されるカソードとを有するダイオードをさらに備え、前記変圧器が前記入力電圧を受け取り、前記ダイオードを通じて前記出力電圧及び前記出力電流を調節する、請求項1に記載のコンスタント・オン・タイム絶縁型コンバータ。
- 前記プロセッサが、前記AC電圧と前記処理電圧とを結合して制御電圧を生成し、前記制御電圧及び前記基準電圧に基づいて前記制御信号を生成する、請求項1に記載のコンスタント・オン・タイム絶縁型コンバータ。
- 前記制御信号が、所定期間内の少なくとも1サイクルの第2のパルス信号であり、前記制御電圧が前記所定基準電圧未満であるとき、前記第2のパルス信号の各サイクルが第1の半サイクルで高レベル電圧を、第2の半サイクルで低レベル電圧を供給し、前記制御信号が、前記所定期間後で前記制御電圧が前記所定基準電圧より大きくなるとき、低レベル電圧である、請求項5に記載のコンスタント・オン・タイム絶縁型コンバータ。
- 前記プロセッサが、
前記負荷に接続されて、前記出力電流を捕捉して前記処理電圧に変換する電流−電圧コンバータと、
前記変圧器の前記二次側及び前記負荷に接続されて、前記出力電圧を受け取り、フィードバック電圧を供給する分圧器と、
前記分圧器に接続されて、前記フィードバック電圧を受け取りフィルタリングし、前記AC電圧を取得するフィルタと、
前記フィルタ及び前記電流−電圧コンバータに接続され、前記AC電圧及び前記処理電圧を受け取って加算し、前記制御電圧を生成する加算器と、
前記所定基準電圧が与えられ、前記結合素子、前記加算器、前記二次側、及び前記負荷に接続されるコントローラであって、前記制御電圧を受け取り、前記制御電圧及び前記所定基準電圧に基づいて前記制御信号を生成するコントローラと、
を備える、請求項5に記載のコンスタント・オン・タイム絶縁型コンバータ。 - 前記電流−電圧コンバータがホール素子である、請求項7に記載のコンスタント・オン・タイム絶縁型コンバータ。
- 前記電流−電圧コンバータが、
前記負荷に接続される抵抗器であって、前記出力電流が前記抵抗器を流れて、前記抵抗器にわたって検出電圧を生成する抵抗器と、
前記加算器、前記抵抗器、及び前記負荷に接続される増幅器であって、前記検出電圧を受け取り増幅して、前記処理電圧を生成する増幅器と、
を備える請求項7に記載のコンスタント・オン・タイム絶縁型コンバータ、 - 前記電子スイッチが、N−チャネル金属酸化物半導体電界効果トランジスタ又はバイポーラ接合トランジスタである、請求項1に記載のコンスタント・オン・タイム絶縁型コンバータ。
- 前記結合素子が、コンデンサ、変圧器、圧電素子、又は光結合素子である、請求項1に記載のコンスタント・オン・タイム絶縁型コンバータ。
- 前記処理電圧のDC成分の電圧が前記所定基準電圧と等しい、請求項1に記載のコンスタント・オン・タイム絶縁型コンバータ。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410483703.4A CN105490542A (zh) | 2014-09-19 | 2014-09-19 | 固定导通时间切换式转换装置 |
CN201410483703.4 | 2014-09-19 | ||
US14/562,727 US10270353B2 (en) | 2014-09-12 | 2014-12-07 | Constant on-time (COT) control in isolated converter |
US14/562,727 | 2014-12-07 | ||
PCT/US2015/050526 WO2016044487A1 (en) | 2014-09-19 | 2015-09-16 | Constant on-time (cot) control in isolated converter |
Publications (2)
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JP2017529049A true JP2017529049A (ja) | 2017-09-28 |
JP6530486B2 JP6530486B2 (ja) | 2019-06-12 |
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Country Status (6)
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EP (1) | EP3195456B1 (ja) |
JP (1) | JP6530486B2 (ja) |
KR (1) | KR101901576B1 (ja) |
CN (1) | CN105490542A (ja) |
PH (1) | PH12017500475B1 (ja) |
WO (1) | WO2016044487A1 (ja) |
Cited By (1)
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JP2021013256A (ja) * | 2019-07-08 | 2021-02-04 | 株式会社リコー | 電源装置、電源制御方法、画像形成装置、及びプログラム |
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EP4213354A1 (en) * | 2022-01-14 | 2023-07-19 | Goodix Technology (HK) Company Limited | Current limit control circuit for a boost converter in ccm |
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-
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- 2015-09-16 KR KR1020177008377A patent/KR101901576B1/ko active IP Right Grant
- 2015-09-16 JP JP2017515826A patent/JP6530486B2/ja active Active
- 2015-09-16 EP EP15842059.6A patent/EP3195456B1/en active Active
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WO2016044487A1 (en) | 2016-03-24 |
JP6530486B2 (ja) | 2019-06-12 |
EP3195456C0 (en) | 2023-09-13 |
KR20170045327A (ko) | 2017-04-26 |
EP3195456B1 (en) | 2023-09-13 |
KR101901576B1 (ko) | 2018-09-27 |
CN105490542A (zh) | 2016-04-13 |
EP3195456A4 (en) | 2018-05-16 |
EP3195456A1 (en) | 2017-07-26 |
PH12017500475A1 (en) | 2017-07-31 |
PH12017500475B1 (en) | 2017-07-31 |
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