JP2018098853A - シールド、電子回路、及び、dc−dcコンバータ - Google Patents
シールド、電子回路、及び、dc−dcコンバータ 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
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
- H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
- H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
-
- 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
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
-
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
- H05K7/14322—Housings specially adapted for power drive units or power converters wherein the control and power circuits of a power converter are arranged within the same casing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
- H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
- H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
- H05K9/0026—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields integrally formed from metal sheet
-
- 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
- H02M1/0064—Magnetic structures combining different functions, e.g. storage, filtering or transformation
-
- 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
- H02M3/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- 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
-
- 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)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Dc-Dc Converters (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
【解決手段】シールド1は、外部電極10b,10cを有し、配線パターンが形成された基板12に実装されたインダクタ10と、インダクタ10の外部電極10cと基板12に形成されたグランドパターン12aとの間に電気的に接続された第2コンデンサ4dと、インダクタ10を覆うように配設され、第2コンデンサ4dが接続されたインダクタ10の外部電極10cに電気的に接続されたシールド部材11とを備える。第2コンデンサ4dは、自己共振周波数を境にして、低周波側では周波数が高くなるほどインピーダンスが低くなり、高周波側では周波数が高くなるほどインピーダンスが高くなる周波数特性を有する。
【選択図】 図1
Description
図1〜図3を参照して、第1実施形態に係るシールド1について説明する。図1は、第1実施形態に係るシールド1の構成を示す斜視図である。図2は、第1実施形態に係るシールド1で用いられるシールド部材11の展開図である。図3は、第1実施形態に係るシールド1を備えるDC−DCコンバータ4の回路図である。
図6及び図7を参照して、第2実施形態に係るシールド2について説明する。図6は、第2実施形態に係るシールド2の構成を示す斜視図である。図7は、第2実施形態に係るシールド2で用いられるシールド部材21の展開図である。
図8及び図9を参照して、第3実施形態に係るシールド3について説明する。図8は、第3実施形態に係るシールド3の構成を示す斜視図である。図9は、第3実施形態に係るシールド3で用いられるシールド部材31の展開図である。
4 DC−DCコンバータ
4a 第1コンデンサ
4b スイッチング素子
4c ダイオード
4d 第2コンデンサ
10,20,30 インダクタ
10a 巻線
10b,10c,20b,20c,30b,30c 外部電極
11,21,31 シールド部材
12,22,32 基板
12a,22a,22b,32a グランドパターン
Claims (8)
- 外部電極を有し、配線パターンが形成された基板に実装された第1の電子部品と、
前記第1の電子部品の外部電極と、前記基板に形成されたグランドパターンとの間に電気的に接続された第2の電子部品と、
前記第1の電子部品を覆うように配設され、前記第2の電子部品が接続された前記第1の電子部品の外部電極に電気的に接続されたシールド部材と、
を備え、
前記第2の電子部品は、所定の周波数においてインピーダンスが低下する周波数特性を有することを特徴とするシールド。 - 前記第2の電子部品は、前記第1の電子部品の外部電極を通過させる電気信号の周波数ではインピーダンスが増大し、前記シールド部材によるシールド効果を発揮させる周波数ではインピーダンスが低下する周波数特性を有することを特徴とする請求項1に記載のシールド。
- 前記第2の電子部品は、所定の周波数を境にして、当該所定の周波数の低周波側では周波数が高くなるほどインピーダンスが低くなり、かつ、当該所定の周波数の高周波側では周波数が高くなるほどインピーダンスが高くなる周波数特性を有することを特徴とする請求項1又は請求項2に記載のシールド。
- 請求項1〜請求項3の何れか一項に記載のシールドを備え、
前記第1の電子部品は、インダクタであり、
前記第2の電子部品は、コンデンサであることを特徴とする電子回路。 - 前記インダクタは、縦巻き構造であり、
前記シールド部材は、前記インダクタの少なくとも上面に設けられることを特徴とする請求項4に記載の電子回路。 - 前記インダクタは、横巻き構造であり、
前記シールド部材は、前記インダクタの少なくとも対向する側面に設けられることを特徴とする請求項4に記載の電子回路。 - 前記シールド部材は、前記インダクタの周囲の全面に設けられることを特徴とする請求項4〜請求項6の何れか一項に記載の電子回路。
- 請求項1〜請求項3の何れか一項に記載のシールドと、
スイッチング素子と、
を備え、
前記第1の電子部品は、前記スイッチング素子に電気的に接続されたパワーインダクタであり、
前記第2の電子部品は、前記パワーインダクタに電気的に接続された平滑用のコンデンサであることを特徴とするDC−DCコンバータ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016239309A JP6558354B2 (ja) | 2016-12-09 | 2016-12-09 | シールド、電子回路、及び、dc−dcコンバータ |
US15/833,208 US10855172B2 (en) | 2016-12-09 | 2017-12-06 | Shield, electronic circuit, and DC-DC converter |
CN201711283709.7A CN108235672B (zh) | 2016-12-09 | 2017-12-07 | 屏蔽体、电子电路以及dc-dc转换器 |
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JP2016239309A JP6558354B2 (ja) | 2016-12-09 | 2016-12-09 | シールド、電子回路、及び、dc−dcコンバータ |
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JP2018098853A true JP2018098853A (ja) | 2018-06-21 |
JP6558354B2 JP6558354B2 (ja) | 2019-08-14 |
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US (1) | US10855172B2 (ja) |
JP (1) | JP6558354B2 (ja) |
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JP6799050B2 (ja) * | 2018-11-28 | 2020-12-09 | 矢崎総業株式会社 | Dc/dcコンバータ |
CN109600982B (zh) * | 2019-01-24 | 2024-02-13 | 华域视觉科技(上海)有限公司 | 适用于dc-dc驱动的局部屏蔽方法及pcb布局结构 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5149817U (ja) * | 1974-10-14 | 1976-04-15 | ||
JP2009176877A (ja) * | 2008-01-23 | 2009-08-06 | Fuji Electric Device Technology Co Ltd | マイクロ電源モジュール |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5331378B1 (ja) * | 1971-05-31 | 1978-09-02 | ||
JP2002334954A (ja) | 2001-05-08 | 2002-11-22 | Tdk Corp | 電子装置およびその製造方法ならびに電子部品保護用キャップおよびその製造方法 |
JP2003273562A (ja) | 2002-03-13 | 2003-09-26 | Murata Mfg Co Ltd | 電磁波シールドシートおよび電子機器 |
KR20050000688A (ko) * | 2003-06-24 | 2005-01-06 | 삼성전기주식회사 | Dc/dc 컨버터 모듈 |
JP5082329B2 (ja) * | 2006-08-10 | 2012-11-28 | 富士電機株式会社 | Dc−dcコンバータ |
JP6298974B2 (ja) * | 2013-08-09 | 2018-03-28 | 北川工業株式会社 | 出力ノイズ低減装置 |
-
2016
- 2016-12-09 JP JP2016239309A patent/JP6558354B2/ja active Active
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2017
- 2017-12-06 US US15/833,208 patent/US10855172B2/en active Active
- 2017-12-07 CN CN201711283709.7A patent/CN108235672B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5149817U (ja) * | 1974-10-14 | 1976-04-15 | ||
JP2009176877A (ja) * | 2008-01-23 | 2009-08-06 | Fuji Electric Device Technology Co Ltd | マイクロ電源モジュール |
Also Published As
Publication number | Publication date |
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CN108235672A (zh) | 2018-06-29 |
US20180166980A1 (en) | 2018-06-14 |
US10855172B2 (en) | 2020-12-01 |
CN108235672B (zh) | 2020-07-14 |
JP6558354B2 (ja) | 2019-08-14 |
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