JP2017108535A - スイッチングレギュレータ - Google Patents
スイッチングレギュレータ Download PDFInfo
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- JP2017108535A JP2017108535A JP2015240511A JP2015240511A JP2017108535A JP 2017108535 A JP2017108535 A JP 2017108535A JP 2015240511 A JP2015240511 A JP 2015240511A JP 2015240511 A JP2015240511 A JP 2015240511A JP 2017108535 A JP2017108535 A JP 2017108535A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims description 38
- 238000001514 detection method Methods 0.000 claims description 35
- 239000003990 capacitor Substances 0.000 claims description 21
- 238000005070 sampling Methods 0.000 claims description 19
- 238000012935 Averaging Methods 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000014509 gene expression Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 6
- 239000000284 extract Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
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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
-
- 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
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
-
- 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
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/157—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of 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
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0009—Devices or circuits for detecting current in a converter
-
- 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
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0025—Arrangements for modifying reference values, feedback values or error values in the control loop of a converter
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
上述した通り図15に示すスイッチングレギュレータは、出力電圧Vоutを直接モニタせずにフィードバック制御を行うため、出力安定度が低くなる。そこで、本発明者は、出力電圧Vоutを直接モニタしないと出力安定度が低くなる根本的な原因について考察した。
CVCC×ΔVCC=IVCC×TVCC …(1)
CVout×ΔVоut=Iоut×TVout …(2)
CVCC/IVCC=CVout/Iоut …(3)
図1は、スイッチングレギュレータの第1実施形態の全体構成例を示す図である。図1に示すスイッチングレギュレータは、フォトカプラを用いない非絶縁型スイッチングレギュレータであって、フィルタF1と、ダイオードブリッジ回路DB1と、入力コンデンサCinと、スイッチングレギュレータ用IC100と、ダイオードD1と、インダクタL1と、出力コンデンサC0と、ダイオードD2と、コンデンサC1と、を備える。
図7は、スイッチングレギュレータの第1実施形態の全体構成例を示す図である。なお、図7において図1と同一の部分には同一の符号を付し詳細な説明を省略する。
次に、先に説明した図1及び図7に示すスイッチングレギュレータの用途例について説明する。 図12は、空気調和機の一構成例を示す外観図である。本構成例の空気調和機Yは、室内機Y1と、室外機Y2と、これらを連結する配管Y3と、を有する。なお、室内機Y1は、蒸発器や室内ファンを内蔵しており、室外機Y2は、圧縮機、凝縮器、膨張弁、室外ファン及び、図1又は図7に示すスイッチングレギュレータを内蔵している。
なお、本発明の構成は、上記実施形態のほか、発明の主旨を逸脱しない範囲で種々の変更を加えることが可能である。
2 基準電圧源
3 PWMコンパレータ
4 ロジック回路
5 ドライバ回路
6 モニタ回路
7 電流可変回路
100 スイッチングレギュレータ用IC
C0 出力コンデンサ
C1 コンデンサ
Cin 入力コンデンサ
D1、D2 ダイオード
DB1 ダイオードブリッジ回路
F1 フィルタ
L1 インダクタ
Q1 NMOSトランジスタ
R1、R2 分圧抵抗
Rs 電流検出用抵抗
Y 空気調和機
Y1 室内機
Y2 室外機
Y3 配管
Claims (10)
- スイッチング素子と、
出力電圧を出力する出力端子にアノードが接続される整流素子と、
前記スイッチング素子と前記出力端子との間に設けられるインダクタと、
前記整流素子のカソード電圧を電源電圧として用い、前記整流素子のカソード電圧に応じて前記スイッチング素子のオン/オフを制御する制御部と、
を有し、
前記制御部が、前記整流素子のカソード電圧に応じた電圧と基準電圧との差分に応じたエラー信号を生成するエラーアンプを備えるスイッチングレギュレータであって、
前記スイッチングレギュレータが、前記インダクタを流れる電流をモニタするモニタ部と、前記モニタ部のモニタ結果に基づいて前記インダクタを流れる電流が大きいほど前記整流素子を流れる電流を大きくする電流可変部と、を更に有することを特徴とするスイッチングレギュレータ。 - 前記スイッチング素子がNMOSトランジスタである請求項1に記載のスイッチングレギュレータ。
- 前記整流素子のカソード電圧を安定化させるために前記整流素子のカソードに接続されるコンデンサを備える請求項1または請求項2に記載のスイッチングレギュレータ。
- 前記インダクタを流れる電流を検出する電流検出部を更に有し、
前記モニタ部が前記電流検出部の検出結果を入力する請求項1〜3のいずれか一項に記載のスイッチングレギュレータ。 - 前記電流検出部が、前記スイッチング素子がオン状態のときに前記インダクタを流れる電流のみを検出する請求項4に記載のスイッチングレギュレータ。
- 前記電流検出部が、前記スイッチング素子がオン状態のときに前記インダクタを流れる電流及び前記スイッチング素子がオフ状態のときに前記インダクタを流れる電流を検出する請求項4に記載のスイッチングレギュレータ。
- 前記モニタ部及び前記電流可変部が、前記電流検出部の検出結果を平均化する平均化部と、前記平均化部から出力されるアナログ電圧信号を入力する電圧−電流変換回路とによって構成される請求項4〜6のいずれか一項に記載のスイッチングレギュレータ。
- 前記モニタ部及び前記電流可変部が、前記電流検出部の検出結果を所定のサンプリング周期でサンプリングするサンプリング部と、前記サンプリング部から出力されるアナログ電圧信号を入力する電圧−電流変換回路とによって構成される請求項4〜6のいずれか一項に記載のスイッチングレギュレータ。
- 前記モニタ部及び前記電流可変部が、前記電流検出部の検出結果を前記スイッチング素子のスイッチング周期と同期したサンプリング周期でデジタル電圧信号に変換するA/D変換器と、前記A/D変換器の出力に応じて抵抗値を可変する可変抵抗部とによって構成される請求項4〜6のいずれか一項に記載のスイッチングレギュレータ。
- 請求項1〜9のいずれか一項に記載のスイッチングレギュレータを有することを特徴とする電気機器。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2015240511A JP6595326B2 (ja) | 2015-12-09 | 2015-12-09 | スイッチングレギュレータ |
US15/370,006 US10135358B2 (en) | 2015-12-09 | 2016-12-06 | Switching regulator operable to alter feedback based on load |
CN201611116767.6A CN106856370B (zh) | 2015-12-09 | 2016-12-07 | 开关稳压器 |
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JP2015240511A JP6595326B2 (ja) | 2015-12-09 | 2015-12-09 | スイッチングレギュレータ |
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JP2017108535A true JP2017108535A (ja) | 2017-06-15 |
JP6595326B2 JP6595326B2 (ja) | 2019-10-23 |
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JP2015240511A Active JP6595326B2 (ja) | 2015-12-09 | 2015-12-09 | スイッチングレギュレータ |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111262430A (zh) * | 2019-12-05 | 2020-06-09 | 艾德克斯电子(南京)有限公司 | 一种动态修正电感值的方法 |
JP2020156210A (ja) * | 2019-03-20 | 2020-09-24 | トヨタ自動車株式会社 | 電源電圧生成回路 |
Citations (4)
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JPS61123683U (ja) * | 1985-01-22 | 1986-08-04 | ||
JPH10191625A (ja) * | 1996-12-25 | 1998-07-21 | Matsushita Electric Ind Co Ltd | スイッチング電源 |
JP2011061913A (ja) * | 2009-09-07 | 2011-03-24 | Panasonic Corp | スイッチング電源装置、及びそれに用いる半導体装置 |
US20130335052A1 (en) * | 2012-06-14 | 2013-12-19 | Chengdu Monolithic Power Systems Co., Ltd. | High side buck converters and control methods thereof |
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JP5513037B2 (ja) | 2009-08-20 | 2014-06-04 | 新電元工業株式会社 | スイッチング電源装置 |
JP5679828B2 (ja) * | 2010-02-09 | 2015-03-04 | キヤノン株式会社 | スイッチング電源および画像形成装置 |
CN102969915B (zh) * | 2012-11-19 | 2016-03-02 | 深圳市明微电子股份有限公司 | 一种高功率因数恒流控制电路 |
CN203691227U (zh) * | 2013-12-30 | 2014-07-02 | 西安理工大学 | 一种大功率三相有源功率校正电路 |
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- 2015-12-09 JP JP2015240511A patent/JP6595326B2/ja active Active
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- 2016-12-06 US US15/370,006 patent/US10135358B2/en active Active
- 2016-12-07 CN CN201611116767.6A patent/CN106856370B/zh active Active
Patent Citations (4)
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JPS61123683U (ja) * | 1985-01-22 | 1986-08-04 | ||
JPH10191625A (ja) * | 1996-12-25 | 1998-07-21 | Matsushita Electric Ind Co Ltd | スイッチング電源 |
JP2011061913A (ja) * | 2009-09-07 | 2011-03-24 | Panasonic Corp | スイッチング電源装置、及びそれに用いる半導体装置 |
US20130335052A1 (en) * | 2012-06-14 | 2013-12-19 | Chengdu Monolithic Power Systems Co., Ltd. | High side buck converters and control methods thereof |
Cited By (3)
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JP2020156210A (ja) * | 2019-03-20 | 2020-09-24 | トヨタ自動車株式会社 | 電源電圧生成回路 |
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CN111262430A (zh) * | 2019-12-05 | 2020-06-09 | 艾德克斯电子(南京)有限公司 | 一种动态修正电感值的方法 |
Also Published As
Publication number | Publication date |
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US10135358B2 (en) | 2018-11-20 |
CN106856370B (zh) | 2020-02-21 |
US20170170747A1 (en) | 2017-06-15 |
JP6595326B2 (ja) | 2019-10-23 |
CN106856370A (zh) | 2017-06-16 |
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