JPWO2017208705A1 - スイッチングレギュレータ、半導体集積回路、及び電子機器 - Google Patents
スイッチングレギュレータ、半導体集積回路、及び電子機器 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
- 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
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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
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
-
- 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
- H02M1/0032—Control circuits allowing low power mode operation, e.g. in standby mode
-
- 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
- H02M1/0048—Circuits or arrangements for reducing losses
-
- 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
-
- 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
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- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
図1はスイッチングレギュレータの第1構成例を示す図である。本構成例のスイッチングレギュレータは、半導体集積回路101と、インダクタL1と、出力コンデンサC1と、分圧抵抗R1及びR2と、を備える。
図6はスイッチングレギュレータの第2構成例を示す図である。本構成例のスイッチングレギュレータは、第1構成例のスイッチングレギュレータにおいて半導体集積回路101を半導体集積回路102に置換した構成である。半導体集積回路102は半導体集積回路101にトランジスタQ6を追加した構成である。なお、本構成例において第1構成例と同様の部分については説明を省略する。
図7はスイッチングレギュレータの第3構成例を示す図である。本構成例のスイッチングレギュレータは、第2構成例のスイッチングレギュレータにおいて半導体集積回路102を半導体集積回路103に置換した構成である。半導体集積回路103は半導体集積回路102にトランジスタQ7を追加した構成である。なお、本構成例において第2構成例と同様の部分については説明を省略する。
図8はスイッチングレギュレータの第4構成例を示す図である。本構成例のスイッチングレギュレータは、第1構成例のスイッチングレギュレータにおいて半導体集積回路101を半導体集積回路104に置換し、出力電圧Voutを半導体集積回路104の後述する端子T5に印加した構成である。半導体集積回路104は半導体集積回路101に端子T5を追加しトランジスタQ5のドレインの接続先を端子T2から端子5に変更した構成である。なお、本構成例において第1構成例と同様の部分については説明を省略する。
図9はスイッチングレギュレータの第5構成例を示す図である。本構成例のスイッチングレギュレータは、第4構成例のスイッチングレギュレータにおいて半導体集積回路104を半導体集積回路105に置換し、分圧抵抗R1及びR2を半導体集積回路105に内蔵した構成である。半導体集積回路105は半導体集積回路104に分圧抵抗R1及びR2を追加し端子T4を取り除いた構成である。なお、本構成例において第4構成例と同様の部分については説明を省略する。
上記したスイッチングレギュレータは、例えば車載用ナビゲーション装置X1のCPU(不図示)に電源電圧を供給する電源装置として用いることができる。車載用ナビゲーション装置X1はナビゲーション情報を表示する表示装置を備える。表示装置の表示パネルX11は車両の室内フロント部に設けられる(図10参照)。
本明細書中に開示されている種々の技術的特徴は、上記実施形態のほか、その技術的創作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 エラーアンプ
4 スロープ回路
5、7 コンパレータ
6 オシレータ
101〜105 半導体集積回路
C1 出力コンデンサ
Eg ゲート電極
Ed ドレイン電極
Es ソース電極
L1 インダクタ
R1、R2 分圧抵抗
Q1 上側トランジスタ
Q2 下側トランジスタ
Q3〜Q7 トランジスタ
T1〜T5 端子
X1 車載用ナビゲーション装置
X11 表示パネル
X2 パーソナルコンピュータ
Claims (10)
- 入力電圧から出力電圧を生成するスイッチングレギュレータであって、
第1端が前記入力電圧の印加される第1印加端に接続された上側スイッチと、
第1端が前記上側スイッチの第2端に接続されて第2端が前記入力電圧よりも低い所定電圧の印加される第2印加端に接続された下側スイッチと、
第1端が前記上側スイッチと前記下側スイッチの接続ノードに接続されたインダクタと、
前記インダクタの第2端に接続された出力コンデンサと、
前記出力電圧に応じて前記上側スイッチ及び前記下側スイッチを相補的にオン/オフさせるための制御信号を生成する制御部と、
前記インダクタの第1端又は第2端から定電流を引抜く電流引抜き部と、
を有し、
前記制御部は軽負荷時にスイッチング制御を停止して前記上側スイッチ及び前記下側スイッチをオフ状態に固定し、
前記定電流は正の温度特性を有し、前記定電流の値は前記上側スイッチのリーク電流から前記下側スイッチのリーク電流を引いた値以上であることを特徴とするスイッチングレギュレータ。 - 前記上側スイッチがMOSFETである請求項1に記載のスイッチングレギュレータ。
- 前記電流引抜き部は、前記制御部がスイッチング制御を行っている期間中に、前記インダクタの第1端又は第2端から前記定電流を引抜かない請求項1又は請求項2に記載のスイッチングレギュレータ。
- 前記電流引抜き部は、常時オフ状態であるトランジスタと、前記トランジスタのリーク電流に略比例する前記定電流を生成する定電流生成部と、を有し、
前記トランジスタのリーク電流は前記上側スイッチのリーク電流に略比例する請求項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。 - 前記トランジスタのリーク電流は前記上側スイッチのリーク電流より小さい請求項4に記載のスイッチングレギュレータ。
- 前記定電流生成部は、前記制御部がスイッチング制御を行っている期間中に、前記定電流を生成しない請求項4又は請求項5に記載のスイッチングレギュレータ。
- 前記制御部がスイッチング制御を行っている期間中に、前記定電流生成部への前記トランジスタのリーク電流の供給を停止する請求項6に記載のスイッチングレギュレータ。
- 請求項1〜7のいずれか一項に記載のスイッチングレギュレータの少なくとも一部を構成する半導体集積回路であって、
前記上側スイッチ及び前記電流引抜き部を有することを特徴とする半導体集積回路。 - 前記出力電圧を分圧する分圧回路をさらに有し、
前記半導体集積回路に外付けされる前記インダクタの第2端から前記電流引抜き部が前記定電流を引抜く請求項8に記載の半導体集積回路。 - 請求項1〜7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子機器。
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PCT/JP2017/016903 WO2017208705A1 (ja) | 2016-05-31 | 2017-04-28 | スイッチングレギュレータ、半導体集積回路、及び電子機器 |
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JP7058186B2 (ja) * | 2018-06-22 | 2022-04-21 | ローム株式会社 | スイッチング電源装置及び半導体装置 |
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DE112017002278T5 (de) | 2019-01-17 |
US10396660B2 (en) | 2019-08-27 |
CN109196764A (zh) | 2019-01-11 |
US20190181750A1 (en) | 2019-06-13 |
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