JP6851472B2 - スイッチング電源装置 - Google Patents
スイッチング電源装置 Download PDFInfo
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- JP6851472B2 JP6851472B2 JP2019522007A JP2019522007A JP6851472B2 JP 6851472 B2 JP6851472 B2 JP 6851472B2 JP 2019522007 A JP2019522007 A JP 2019522007A JP 2019522007 A JP2019522007 A JP 2019522007A JP 6851472 B2 JP6851472 B2 JP 6851472B2
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- 238000006243 chemical reaction Methods 0.000 claims description 29
- 238000009499 grossing Methods 0.000 description 20
- 238000004804 winding Methods 0.000 description 13
- 230000010363 phase shift Effects 0.000 description 12
- 239000003990 capacitor Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/08—Duration or width modulation ; Duty cycle modulation
-
- 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
- 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
- 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
- H02M3/158—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 including plural semiconductor devices as final control devices for a single load
-
- 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
- H02M3/33573—Full-bridge at primary side of an isolation transformer
-
- 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)
Description
本発明の第1の実施形態について図2〜図4を用いて説明する。本実施形態は、DC−DCコンバータ5としてPWM(パルス幅変調)制御の非絶縁型降圧コンバータを使用する場合において電圧制御の分解能を向上するものである。
ΔD1=(Ton+1)÷Tsw−Ton÷Tsw=1÷Tsw
と表せる。
ΔD2=Ton÷Tsw−Ton÷(Tsw+1)=(Ton÷Tsw)×1÷(Tsw+1)
と表せる。ここで、通常、スイッチング周期Tswは1クロックよりも十分に大きく、Tsw>>1であるから、
ΔD2≒(Ton÷Tsw)×1÷Tsw=Don×1÷Tsw=ΔD2=Don×ΔD1
と、近似できる。結局、スイッチング周期Tswを1クロック変化させた場合のONデューティDonの変化量はオン時間Tonを1クロック変化させた場合と比較してDon倍になり、1÷Don倍だけ分解能が向上することになる。ここで、ONデューティDonは入力電圧Viおよび出力電圧Voによって定まるため、分解能を向上するために最適なスイッチング周期の変化量は入出力電圧条件によって変わることになる。
本発明の第2の実施形態について図5〜図7を用いて説明する。本実施形態は、DC−DCコンバータ5として位相シフト制御方式の絶縁型降圧コンバータを使用する場合において電圧制御の分解能を向上するものである。図5を用いて本実施形態を適用したDC−DCコンバータ5の構成および動作を説明する。
以上、本発明の第1および第2の実施形態によれば、デジタル制御方式のスイッチング電源装置において、操作量の演算値と設定値との差分に基づいて、スイッチング周期Tswを変化させることで、ONデューティDonを細かく制御できるようになる。この結果、電圧の制御分解能が高く、電圧リップルが小さなスイッチング電源装置を提供することができる。さらに本発明では、制御の分解能を向上するために、新たに回路を追加する必要がないため、小型・低コストのスイッチング電源装置に貢献できる。なお、第1、第2の実施形態では車両に搭載されるスイッチング電源装置を例にとったが、車両に限らない何れのスイッチング電源装置にも適用できる。また、操作量は、本実施形態で示したオン時間、位相シフト量に限らず、スイッチング周期Tswの変化と組み合わせて制御対象の分解能を向上しうるものであれば、本発明を応用できる。さらに、電力変換回路は、本実施形態で示した降圧チョッパ、位相シフト方式の降圧コンバータに限らず、昇圧チョッパ、双方向昇降圧チョッパ、位相シフト方式の昇圧コンバータ、その他フライバックコンバータ、フォワードコンバータ等、何れの回路方式にも適用できる。制御手段は、DSPに限らず、マイコンやその他のデジタル制御手段で代用してもよい。
Claims (7)
- スイッチング素子を含んで構成される電力変換回路と、
前記電力変換回路の出力電圧指令値と前記電力変換回路の出力電圧値に基づいて、前記スイッチング素子に駆動パルスを出力する制御回路部と、を備え、
前記制御回路部は、前記出力電圧指令値と前記出力電圧値に基づく操作量の演算値と、前記操作量の設定値との差分に基づいて、スイッチング周期を変化させて駆動パルスを出力するスイッチング電源装置。 - 請求項1に記載のスイッチング電源装置において、
前記駆動パルスのオン時間を前記操作量とするスイッチング電源装置。 - 請求項1に記載のスイッチング電源装置において、
前記電力変換回路は、
第1のスイッチング素子と第2のスイッチング素子を直列接続した第1のスイッチングレッグと、
第3のスイッチング素子と第4のスイッチング素子を直列接続した第2のスイッチングレッグと、により構成され、
前記第1のスイッチングレッグと前記第2のスイッチングレッグの両端間を直流端子間とし、前記第1のスイッチング素子と前記第2のスイッチング素子との直列接続点と前記第3のスイッチング素子と前記第4のスイッチング素子の直列接続点との間を交流端子間としたフルブリッジ回路とし、
前記第1のスイッチングレッグに対する前記駆動パルスと前記第2のスイッチングレッグに対する前記駆動パルスとの位相差を前記操作量とするスイッチング電源装置。 - 請求項2または請求項3に記載のスイッチング電源装置において、
前記制御回路部は、クロック信号を発生する手段を備え、
前記設定値は、クロック周期の自然数倍とするスイッチング電源装置。 - 請求項2または請求項3に記載のスイッチング電源装置において、
前記制御回路部は、前記スイッチング周期の変化量を前記差分に比例させるスイッチング電源装置。 - 請求項5に記載のスイッチング電源装置において、
前記制御回路部は、前記電力変換回路の入力電圧および/または出力電圧を検出する手段を備え、
前記入力電圧および/または出力電圧に基づいて、前記スイッチング周期の変化量を決める比例係数を変化させるスイッチング電源装置。 - 請求項2または請求項3に記載のスイッチング電源装置において、
前記制御回路部は、クロック信号を発生する手段を備え、
前記スイッチング周期が偶数クロックとなるように前記スイッチング周期の変化量を演算するスイッチング電源装置。
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JP2017107323 | 2017-05-31 | ||
JP2017107323 | 2017-05-31 | ||
PCT/JP2018/015328 WO2018221031A1 (ja) | 2017-05-31 | 2018-04-12 | スイッチング電源装置 |
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JPWO2018221031A1 JPWO2018221031A1 (ja) | 2020-03-19 |
JP6851472B2 true JP6851472B2 (ja) | 2021-03-31 |
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US (1) | US11309794B2 (ja) |
JP (1) | JP6851472B2 (ja) |
CN (1) | CN110651420B (ja) |
DE (1) | DE112018002259T5 (ja) |
WO (1) | WO2018221031A1 (ja) |
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JP6913599B2 (ja) * | 2017-10-17 | 2021-08-04 | 日立Astemo株式会社 | 制御装置 |
JP7552319B2 (ja) * | 2020-12-08 | 2024-09-18 | オムロン株式会社 | 電力変換装置の制御回路及び電力変換装置 |
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US7276861B1 (en) * | 2004-09-21 | 2007-10-02 | Exclara, Inc. | System and method for driving LED |
JP5038841B2 (ja) | 2007-10-04 | 2012-10-03 | コーセル株式会社 | スイッチング電源装置 |
JP2012235564A (ja) * | 2011-04-28 | 2012-11-29 | Mitsumi Electric Co Ltd | スイッチング電源装置 |
JP6272036B2 (ja) * | 2013-02-13 | 2018-01-31 | 株式会社Soken | 電力変換装置 |
WO2014192290A1 (ja) * | 2013-05-30 | 2014-12-04 | パナソニックIpマネジメント株式会社 | スイッチング電源装置 |
CN105024545B (zh) * | 2014-04-25 | 2018-12-07 | 深圳市中兴微电子技术有限公司 | 一种开关控制方法、开关控制电路及调控器 |
KR20160012505A (ko) * | 2014-07-24 | 2016-02-03 | 삼성전기주식회사 | 양방향 dc-dc 컨버터의 전력 변환 모드 제어 장치, 방법 및 이를 포함하는 양방향 dc-dc 컨버팅 장치 |
JP6277087B2 (ja) * | 2014-08-25 | 2018-02-07 | 東芝インフラシステムズ株式会社 | 電力変換装置 |
JP6332080B2 (ja) | 2015-02-27 | 2018-05-30 | 株式会社オートネットワーク技術研究所 | 信号発生回路、電圧変換装置及び信号発生方法 |
JP6478323B2 (ja) * | 2015-03-20 | 2019-03-06 | コーセル株式会社 | スイッチング電源装置 |
US9991793B2 (en) * | 2015-07-10 | 2018-06-05 | Kabushiki Kaisha Toshiba | Power supply circuit and control method for the same |
US9780657B2 (en) * | 2015-07-21 | 2017-10-03 | Qualcomm Incorporated | Circuits and methods for controlling a boost switching regulator based on inductor current |
EP3522350B1 (en) * | 2016-09-29 | 2021-12-29 | Mitsubishi Electric Corporation | Power conversion device |
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- 2018-04-12 US US16/616,606 patent/US11309794B2/en active Active
- 2018-04-12 DE DE112018002259.5T patent/DE112018002259T5/de active Pending
- 2018-04-12 WO PCT/JP2018/015328 patent/WO2018221031A1/ja active Application Filing
- 2018-04-12 JP JP2019522007A patent/JP6851472B2/ja active Active
- 2018-04-12 CN CN201880033118.0A patent/CN110651420B/zh active Active
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US11309794B2 (en) | 2022-04-19 |
JPWO2018221031A1 (ja) | 2020-03-19 |
CN110651420B (zh) | 2021-07-30 |
US20200186032A1 (en) | 2020-06-11 |
CN110651420A (zh) | 2020-01-03 |
DE112018002259T5 (de) | 2020-01-16 |
WO2018221031A1 (ja) | 2018-12-06 |
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