JP4567453B2 - ディジタル処理装置内の電源電圧を適応的に調整するための自己較正を行う方法と装置 - Google Patents
ディジタル処理装置内の電源電圧を適応的に調整するための自己較正を行う方法と装置 Download PDFInfo
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- JP4567453B2 JP4567453B2 JP2004534202A JP2004534202A JP4567453B2 JP 4567453 B2 JP4567453 B2 JP 4567453B2 JP 2004534202 A JP2004534202 A JP 2004534202A JP 2004534202 A JP2004534202 A JP 2004534202A JP 4567453 B2 JP4567453 B2 JP 4567453B2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/324—Power saving characterised by the action undertaken by lowering clock frequency
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3296—Power saving characterised by the action undertaken by lowering the supply or operating voltage
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- 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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Pulse Circuits (AREA)
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Description
他の技術的な利点は、以下の図面と説明と特許請求の範囲から当業者に明らかである。
Claims (15)
- ディジタル処理装置内の電源電圧を適応的に調整するための自己較正を行う方法であって、
外から与えられた入力電源電圧を、較正器を用いて前記ディジタル処理装置に与え、
複数の遅延セルで構成して前記電源電圧に基づいて変わる遅延をそれぞれ有する複数のセルを有する遅延線に調節器クロック信号を伝播させ、
所定の時刻に第1の遅延セルが前記調節器クロック信号をその出力に与え、かつ隣接する第2の遅延セルが前記調節器クロック信号をその出力に与えないような前記第1の遅延セルおよび第2の遅延セルの対からの出力に応じた電力制御信号を、マルチプレクサを用いて電源に与え、
前記電力制御信号に基づく基準電圧を前記電源電圧として前記ディジタル処理装置に与え、
前記電源電圧として前記基準電圧を用いて前記ディジタル処理装置を動作させ、
前記基準電圧を用いた前記ディジタル処理装置の動作中に、前記第1および第2の遅延セルを用いて前記基準電圧を調整するかどうか判定するために
前記基準電圧を前記電源電圧として受け、
前記調節器クロック信号を受け、
前記調節器クロック信号を前記遅延線に伝播させ、
前記第1の遅延セルの出力と前記第2の遅延セルの出力とを調べ、
前記第1遅延セルがその出力に前記調節器クロック信号を与えず、かつ前記第2遅延セルがその出力に前記調節器クロック信号を与えないときに、一層高い電源電圧を要求し、
前記第1遅延セルがその出力に前記調節器クロック信号を与え、かつ前記第2遅延セルがその出力に前記調節器クロック信号を与えるときに、前記一層低い電源電圧を要求し、
前記第1遅延セルがその出力に前記調節器クロック信号を与え、かつ前記第2遅延セルがその出力に前記調節器クロック信号を与えないときに、前記電源電圧を変えないことを要求する、
ことを含む自己較正を行う方法。 - 前記第1の遅延セルの出力に基づいて、前記第1遅延セルの前記出力の平均の値を有する定常信号をフィルタを用いて生成することを更に含む、請求項1記載の自己較正を行う方法。
- 較正開始信号を受けることを更に含む、請求項1記載の自己較正を行う方法。
- 前記較正開始信号はリセット信号と開始信号のどちらかを含む、請求項3記載の自己較正を行う方法。
- ディジタル処理装置内の電源電圧を適応的に調整するための自己較正を行う方法であって、
外から与えられた入力電源電圧を、較正器を用いて前記ディジタル処理装置に与え、
前記電源電圧に基づいて変わる遅延をそれぞれ有する複数のセルを有する遅延線に調節器クロック信号を伝播させ、
所定の時刻に第1の遅延セルが前記調節器クロック信号をその出力に与え、かつ隣接する第2の遅延セルが前記調節器クロック信号をその出力に与えないような前記第1の遅延セルおよび第2の遅延セルの対のタップからの出力に応じた電力制御信号を、マルチプレクサを用いて電源に与え、
前記第1および第2の遅延セルを用いて、前記ディジタル処理装置の電源電圧を調整するかどうか判定するために、
前記ディジタル処理装置の動作中に、前記電源電圧及び前記調節器クロック信号を受け、
前記調節器クロック信号を前記遅延線に伝播させ、
前記第1の遅延セルの出力と前記第2の遅延セルの出力とを調べ、
前記第1遅延セルがその出力に前記調節器クロック信号を与えず、かつ前記第2遅延セルがその出力に前記調節器クロック信号を与えないときに、一層高い電源電圧を要求し、
前記第1遅延セルがその出力に前記調節器クロック信号を与え、かつ前記第2遅延セルがその出力に前記調節器クロック信号を与えるときに、前記一層低い電源電圧を要求し、
前記第1遅延セルがその出力に前記調節器クロック信号を与え、かつ前記第2遅延セルがその出力に前記調節器クロック信号を与えないときに、前記電源電圧を変えないことを要求する、
ことを含む自己較正を行う方法。 - 較正開始信号を受けることを更に含む、請求項5記載の自己較正を行う方法。
- 前記較正開始信号はリセット信号と開始信号のどちらかを含む、請求項6記載の自己較正を行う方法。
- 前記較正器がディジタル処理装置の較正のための準備信号を出力し、
カウンタを監視して所定の時間が経過したかどうか判定し、
所定の時間が経過すると較正信号を出力して前記ディジタル処理装置に較正の段階を知らせる、
ことを更に含む、請求項5記載の自己較正を行う方法。 - 前記準備信号の出力中は、外から与えられた前記入力電源電圧が、前記較正器により前記ディジタル処理装置に与えられる請求項8記載の自己較正を行う方法。
- ディジタル処理装置内の電源電圧を適応的に調整するための自己較正を行う装置であって、
外から与えられた入力電源電圧に基づいて前記ディジタル処理装置の電源電圧を生成する電源と、
前記電源に結合し、複数の検出器出力を生成するスラック時間検出器と、
前記電源と前記スラック時間検出器とに結合し、前記検出器出力を受けて、前記検出器出力に基づいて電源電圧制御信号を生成するマルチプレクサと、
前記電力制御信号に基づいて前記電源電圧を生成する前記電源と前記マルチプレクサとに結合し、前記マルチプレクサが前記電源電圧制御信号として与える前記検出器出力の微調整を動的に選択する較正器と、
で構成し、
前記スラック時間検出器は、
調節器クロック信号及び前記電源電圧を受け、
連続する第1の遅延セル及び第2の遅延セルを備える遅延線に前記調節器クロック信号を伝播して前記第1及び第2の遅延セルのそれぞれに前記検出器出力を与えさせ、
前記第1遅延セルがその出力に前記調節器クロック信号を与えず、かつ前記第2遅延セルがその出力に前記調節器クロック信号を与えないときに、一層高い電源電圧を要求し、
前記第1遅延セルがその出力に前記調節器クロック信号を与え、かつ前記第2遅延セルがその出力に前記調節器クロック信号を与えるときに、前記一層低い電源電圧を要求し、
前記第1遅延セルがその出力に前記調節器クロック信号を与え、かつ前記第2遅延セルがその出力に前記調節器クロック信号を与えないときに、前記電源電圧を変えないことを要求する、
自己較正を行う装置。 - 前記較正器は前記電源電圧制御信号を前記マルチプレクサから受けて、前記電源電圧制御信号に基づいて、前記ディジタル処理装置における較正中の前記電源電圧を定義する公称電圧信号と、前記マルチプレクサに接続され、前記スラック時間検出器における1対の連続する遅延セルの出力に接続される1対のタップを定義するタップ信号とを生成する、請求項10記載の自己較正を行う装置。
- 前記電源は前記電源電圧制御信号と前記公称電圧信号とにより定義される電圧レベルを有する前記電源電圧を生成する、請求項11記載の自己較正を行う装置。
- 前記電源は電池で構成する、請求項10記載の自己較正を行う装置。
- 各遅延セルは対応するダイナミック・レベル・シフタとフリップ・フロップとで構成する、請求項10記載の自己較正を行う装置。
- 前記マルチプレクサは第1のマルチプレクサと第2のマルチプレクサとで構成する、請求項10記載の自己較正を行う装置。
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US10/236,482 US7024568B2 (en) | 2002-09-06 | 2002-09-06 | Method and system for providing self-calibration for adaptively adjusting a power supply voltage in a digital processing system |
PCT/US2003/001492 WO2004023278A2 (en) | 2002-09-06 | 2003-01-17 | Method and system for providing self-calibration for adaptively adjusting a power supply voltage in a digital processing system |
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JP2005538607A JP2005538607A (ja) | 2005-12-15 |
JP4567453B2 true JP4567453B2 (ja) | 2010-10-20 |
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JP (1) | JP4567453B2 (ja) |
CN (1) | CN100346265C (ja) |
AU (1) | AU2003214849A1 (ja) |
WO (1) | WO2004023278A2 (ja) |
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AU2003214849A8 (en) | 2004-03-29 |
WO2004023278A3 (en) | 2004-09-10 |
CN100346265C (zh) | 2007-10-31 |
CN1714333A (zh) | 2005-12-28 |
US20040049703A1 (en) | 2004-03-11 |
JP2005538607A (ja) | 2005-12-15 |
WO2004023278A2 (en) | 2004-03-18 |
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