JP4527480B2 - Dc−dcコンバータにおける電力効率を最適化する方法および回路 - Google Patents
Dc−dcコンバータにおける電力効率を最適化する方法および回路 Download PDFInfo
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- JP4527480B2 JP4527480B2 JP2004266373A JP2004266373A JP4527480B2 JP 4527480 B2 JP4527480 B2 JP 4527480B2 JP 2004266373 A JP2004266373 A JP 2004266373A JP 2004266373 A JP2004266373 A JP 2004266373A JP 4527480 B2 JP4527480 B2 JP 4527480B2
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- Prior art keywords
- current
- switch
- low
- delay
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/38—Means for preventing simultaneous conduction of switches
-
- 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
- H02M3/1588—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 comprising at least one synchronous rectifier element
-
- 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
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Description
12 ローサイド・スイッチ
13 スイッチ・ノード
15 Vout端子
16 雑音抑圧キャパシタ
17 抵抗または負荷
18 ボディー・ダイオード
19 接地ノード
30 制御回路
31 センスFET
32 電流検出/比較器回路
33 遅延回路
34 クロック/ロジック回路
Claims (3)
- 第1DC電圧を第2DC電圧に変換するDC−DCコンバータにおいて、
前記第1DC電圧の入力に結合される第1スイッチを制御するために結合された第1信号と、
第2スイッチを制御するために結合された第2信号であって、前記第1および第2スイッチは、第1および第2の各入力信号によって制御されて前記第2DC電圧を生成する、第2信号と、
前記第2スイッチを通る電流を表す検出電流を受け取り、それに応答して前記第2スイッチを通る前記電流を表す第1電流および第2電流をそれぞれ形成するために構成された検出デバイスと、
前記第1電流および前記第2電流を受け取り、前記第2スイッチをディセーブルする時と前記第1スイッチをイネーブルする時との間の第1遅延時間を制御するために構成された制御回路であって、前記制御回路は、また前記検出電流を前記制御回路から選択的に分離し、前記第1電流を利用するために構成される、制御回路と、
から構成されることを特徴とするDC−DCコンバータ。 - 入力DC電圧に結合されたドレイン、およびスイッチ・ノードに結合されたソースを有するハイサイドMOSFETスイッチと、
前記スイッチ・ノードに結合されたドレイン、および接地ノードに結合されたドレインを有するローサイドMOSFETスイッチと、
前記ローサイドMOSFETスイッチ中の電流を表す検出電流を選択的に形成するために前記スイッチ・ノードに結合されたドレインを有する検出トランジスタと、
前記検出電流を受け取り、それに応答して前記ローサイドMOSFETスイッチ中の電流を表す第1電流および前記ローサイドMOSFETスイッチ中の電流を表す第2電流を形成するために構成された制御構造であって、前記制御構造は、前記ローサイドMOSFETスイッチがアクティブである時間の少なくとも一部の期間中前記第1電流を第1値として格納しかつ前記第2電流を第2値として格納し、前記ローサイドMOSFETスイッチをディセーブルにする前に前記第1値の格納をディセーブルにするために構成され、前記制御構造は、前記ローサイドMOSFETスイッチをオフにする時と前記ハイサイドMOSFETスイッチをオンにする時との間の遅延時間を選択的に調整するために構成され、前記検出電流を選択的に形成するために前記第1電流および前記第2電流を利用するために構成される、制御構造と
から構成されることを特徴とする同期DC−DCコンバータ構造。 - ローサイド・スイッチに結合されたハイサイド・スイッチを有する同期DC−DCコンバータにおける遅延時間を制御する方法であって、
前記ローサイド・スイッチ中の電流を表す電流検出信号を選択的に形成する段階と、
前記電流検出信号を利用して、前記電流検出信号を表す第1電流および第2電流を形成する段階と、
前記ローサイド・スイッチがアクティブである時間の少なくとも一部の期間中前記第1電流の値を第1格納値として格納しかつ前記第2電流の値を第2格納値として格納する段階と、
前記第1格納値を保持している間前記第1電流の格納をディセーブルにし、かつ前記ローサイド・スイッチをディセーブルにする前に前記第2電流を前記第2格納値として維持する段階と、
前記ローサイド・スイッチをオフにする時と前記ハイサイド・スイッチをオンにする時との間の遅延時間を前記第1格納値および前記第2格納値に応答して選択的に制御する段階と、
前記電流検出信号を選択的に形成するために前記第1格納値および前記第2格納値を利用する段階と、
から構成されることを特徴とする方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/662,062 US6933706B2 (en) | 2003-09-15 | 2003-09-15 | Method and circuit for optimizing power efficiency in a DC-DC converter |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005094994A JP2005094994A (ja) | 2005-04-07 |
JP4527480B2 true JP4527480B2 (ja) | 2010-08-18 |
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Application Number | Title | Priority Date | Filing Date |
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JP2004266373A Expired - Fee Related JP4527480B2 (ja) | 2003-09-15 | 2004-09-14 | Dc−dcコンバータにおける電力効率を最適化する方法および回路 |
Country Status (3)
Country | Link |
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US (1) | US6933706B2 (ja) |
JP (1) | JP4527480B2 (ja) |
CN (1) | CN1599218B (ja) |
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2003
- 2003-09-15 US US10/662,062 patent/US6933706B2/en not_active Expired - Lifetime
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2004
- 2004-09-14 JP JP2004266373A patent/JP4527480B2/ja not_active Expired - Fee Related
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US6933706B2 (en) | 2005-08-23 |
JP2005094994A (ja) | 2005-04-07 |
CN1599218B (zh) | 2013-07-31 |
US20050057228A1 (en) | 2005-03-17 |
CN1599218A (zh) | 2005-03-23 |
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