JP6669968B2 - 電圧制御装置および情報処理装置 - Google Patents
電圧制御装置および情報処理装置 Download PDFInfo
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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
- 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
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping 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
- H02M3/22—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
- H02M3/337—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 push-pull configuration
- H02M3/3376—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 push-pull configuration with automatic control of output voltage or current
- H02M3/3378—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 push-pull configuration with automatic control of output voltage or current in a push-pull configuration of the parallel type
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0016—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters
- H02M1/0022—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters the disturbance parameters being input voltage fluctuations
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
-
- 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
- H02M3/1582—Buck-boost 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
- H02M3/158—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
- H02M3/1584—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 with a plurality of power processing stages connected in parallel
-
- 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
- H02M3/1584—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 with a plurality of power processing stages connected in parallel
- H02M3/1586—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 with a plurality of power processing stages connected in parallel switched with a phase shift, i.e. interleaved
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Description
〔第1の実施の形態〕
図1は、第1の実施の形態に係る電圧制御装置の構成例および動作例を示す図である。図1に示す電圧制御装置10は、昇圧回路11、昇降圧回路12および制御回路13を有する。
入力電圧Vinが電圧V1以上の場合、図1の上段に示すように、制御回路13は、昇圧回路11をオフに設定する。この状態では、昇圧回路11からは入力された電圧がそのまま出力されるので、電圧制御装置10の出力電圧Voutは電圧V1以上となる。このように、昇圧が不要な状態では昇圧回路11がオフに設定されることで、余計な電力が消費されなくなり、装置全体での電力損失を低減できる。一方、昇降圧回路12は制御回路13によってオンに設定されているものの、昇圧回路11への入力電圧Vinが昇降圧回路12から出力される電圧V2より低いため、昇降圧回路12には電流が流れない。したがって、昇降圧回路12での電力損失は小さい。
次に、第2の実施の形態として、図1の電圧制御装置10を含む電源回路を備える情報処理装置について説明する。以下の説明では、まず、図2、図3を用いて、情報処理装置に電源を供給する給電システムの比較例について説明し、その後に本実施の形態に係る情報処理装置について説明する。
配電ユニット90には、ストレージ装置100を含む各種の情報処理装置100a,100b,・・・が接続される。具体的には、配電ユニット90には、情報処理装置100a,100b,・・・のそれぞれの電源プラグが接続される。配電ユニット90は、直流電源システム70からHVDC分電盤80を介して供給された直流電力を、接続された情報処理装置100a,100b,・・・に供給する。
図6は、PSUの内部構成例を示す図である。PSU110においては、フィルタ回路111、昇圧回路113およびDC/DCコンバータ115が直列に接続されている。また、昇圧回路113に対して並列に昇降圧回路114が接続されている。さらに、PSU110は、突入電流防止回路112、コントローラ116およびスイッチング制御回路117,118を備えている。なお、昇圧回路113、昇降圧回路114およびコントローラ116は、それぞれ図1の昇圧回路11、昇降圧回路12および制御回路13の一例である。
(a)入力電圧が350V〜380Vの範囲で一定である。
(c)入力電圧が350V〜380Vの範囲から低下する。
(d)入力電圧が低下した状態から350V〜380Vの範囲に回復する。
図7は、入力電圧が350V〜380Vで一定である場合の制御について示す図である。なお、図7では、スイッチング制御回路117,118やダイオードD1などの記載を省略している。また、入力電圧Vin2は、コントローラ116によって検出される、突入電流防止回路112の出力段における電圧であり、これはPSU110に対する入力電圧Vin1とほぼ等しい。
図8は、入力電圧が240Vで一定である場合の制御について示す図である。なお、図7と同様に、図8では、スイッチング制御回路117,118やダイオードD1などの記載を省略している。
まず、図12は、PSUの起動時における制御手順の例を示すフローチャートである。
[ステップS11]ストレージ装置100に対する入力ケーブルの接続、または、分電盤80や配電ユニット90のブレーカオンに応じて、PSU110が起動する。コントローラ116は、起動直後の動作モードである初期モードで動作する。
[ステップS14]コントローラ116は、検出された入力電圧Vin2が350V以上であるかを判定する。入力電圧Vin2が350V以上である場合、ステップS15の処理が実行される。一方、入力電圧Vin2が350Vより低い場合、昇圧回路113がオンにされたまま、ステップS17の処理が実行される。
[ステップS16]コントローラ116は、動作モードを通常モードに移行する。これにより、350V〜380Vの入力電圧による運用が開始される。
なお、ステップS17の実行後には、昇圧回路113はオンのままになる。これにより、入力電圧Vin2が240Vより低い電圧に変動した場合でも、昇圧回路113によって出力電圧Vout2が350V以上の電圧に維持され、PSU110の出力電圧Vout1の低下が防止される。
[ステップS21]コントローラ116は、昇圧回路113、昇降圧回路114の入力電圧Vin2を検出する。
これにより、昇圧回路113が起動するが、昇圧回路113による350V以上への昇圧動作が開始されるまでの間、昇降圧回路114の昇圧動作によって出力電圧Vout2は330V以上に維持される。その結果、PSU110の出力電圧Vout1は、定常の12Vのまま維持される。そして、昇圧回路113の起動が完了すると、昇圧回路113の昇圧動作によって出力電圧Vout2は350V以上に維持される。
[ステップS32]コントローラ116は、検出された入力電圧Vin2が350V以上であるかを判定する。入力電圧Vin2が350Vより低い場合、一定時間後にステップS31の処理が実行される。これにより、ステップS23の実行後、コントローラ116は、一定時間間隔で入力電圧Vin2を監視する。一方、入力電圧Vin2が350V以上に上昇した場合、すなわち、350V〜380Vの電圧供給が復帰した場合には、ステップS33の処理が実行される。
以上説明したPSU110によれば、240Vの電圧が供給された状態では、昇圧回路113によって入力電圧が一旦350V以上に昇圧された後、DC/DCコンバータ115によって12Vの電源電圧に変換される。これにより、PSU110内の回路部品の大型化や発熱などによる損失の発生を回避できる。一方、350V〜380Vの電圧が供給された状態では、昇圧回路113はオフにされる。これにより、昇圧回路113での電力損失を抑制できる。
11 昇圧回路
12 昇降圧回路
13 制御回路
Vin 入力電圧
Vout 出力電圧
V1,V2 電圧
Claims (4)
- 動作時には入力電圧を第1の電圧以上の電圧にし、非動作時には前記入力電圧をそのまま出力する昇圧回路と、
前記昇圧回路と並列に接続され、前記入力電圧を前記第1の電圧より低い第2の電圧にする昇降圧回路と、
前記昇降圧回路を動作させ続けるとともに、前記入力電圧が前記第1の電圧以上の場合に、前記昇圧回路を非動作状態に設定して前記入力電圧を監視し、前記入力電圧が前記第1の電圧より低くなった場合に、前記昇圧回路を動作状態に切り替える制御回路と、
を有する電圧制御装置。 - 前記制御回路は、
前記電圧制御装置が起動した直後の初期モードでの動作時には、前記入力電圧が前記第1の電圧以上の場合、前記昇圧回路を非動作状態に設定し、前記入力電圧が前記第1の電圧より低い場合、前記昇圧回路を動作状態に設定して、通常モードに移行し、
前記昇圧回路を非動作状態に設定して前記通常モードに移行した場合には、前記入力電圧を監視し、前記入力電圧が前記第1の電圧より低くなった場合には、前記昇圧回路を動作状態に切り替える、
請求項1記載の電圧制御装置。 - 前記昇圧回路および前記昇降圧回路の出力電圧を、前記第2の電圧より低い第3の電圧に変換する変換回路をさらに有し、
前記第2の電圧は、前記変換回路が出力電圧を前記第3の電圧に維持できる範囲内に設定される、
請求項1または2記載の電圧制御装置。 - 動作時には入力電圧を第1の電圧以上の電圧にし、非動作時には前記入力電圧をそのまま出力する昇圧回路と、
前記昇圧回路と並列に接続され、前記入力電圧を前記第1の電圧より低い第2の電圧にする昇降圧回路と、
前記昇圧回路および前記昇降圧回路の出力電圧を、前記第2の電圧より低い第3の電圧に変換する変換回路と、
前記昇降圧回路を動作させ続けるとともに、前記入力電圧が前記第1の電圧以上の場合に、前記昇圧回路を非動作状態に設定して前記入力電圧を監視し、前記入力電圧が前記第1の電圧より低くなった場合に、前記昇圧回路を動作状態に切り替える制御回路と、
を備える電源装置と、
前記変換回路の出力電圧を電源として用いて動作する処理装置と、
を有する情報処理装置。
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JP2004208448A (ja) * | 2002-12-26 | 2004-07-22 | Hitachi Ltd | 昇降圧dc−dcコンバータ |
JP4342889B2 (ja) | 2003-09-30 | 2009-10-14 | 株式会社ダイヘン | 放電灯点灯装置 |
JP4282673B2 (ja) * | 2005-02-09 | 2009-06-24 | パナソニック株式会社 | スイッチング電源装置 |
TW200919917A (en) * | 2007-10-19 | 2009-05-01 | Syspotek Corp | Power supply device with voltage conversion circuit |
KR101064462B1 (ko) * | 2009-11-17 | 2011-09-15 | 삼성모바일디스플레이주식회사 | Dc―dc컨버터 및 이를 이용한 유기전계발광표시장치 |
US8810214B2 (en) * | 2010-09-30 | 2014-08-19 | Nxp B.V. | Multi-mode power supply circuit with a normal operational mode and a pass-through operational mode and a method for operating the multi-mode power supply circuit |
JP6292497B2 (ja) * | 2013-03-18 | 2018-03-14 | パナソニックIpマネジメント株式会社 | 電力変換器、パワーコンディショナ |
JP2015053777A (ja) * | 2013-09-06 | 2015-03-19 | 日立オートモティブシステムズ株式会社 | 電源制御装置 |
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2016
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US10079535B2 (en) | 2018-09-18 |
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