JP6040647B2 - スイッチング電源装置 - Google Patents
スイッチング電源装置 Download PDFInfo
- Publication number
- JP6040647B2 JP6040647B2 JP2012195612A JP2012195612A JP6040647B2 JP 6040647 B2 JP6040647 B2 JP 6040647B2 JP 2012195612 A JP2012195612 A JP 2012195612A JP 2012195612 A JP2012195612 A JP 2012195612A JP 6040647 B2 JP6040647 B2 JP 6040647B2
- Authority
- JP
- Japan
- Prior art keywords
- noise
- power supply
- switching
- switching power
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 claims description 57
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 20
- 101150004141 Vcan gene Proteins 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000007257 malfunction Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
- 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
- H02M1/14—Arrangements for reducing ripples from dc input or output
- H02M1/143—Arrangements for reducing ripples from dc input or output using compensating arrangements
-
- 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
- H02M3/33507—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 with automatic control of the output voltage or current, e.g. flyback converters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Description
特に前記スイッチング素子のスイッチングに伴って前記制御回路の接地ラインに生じるGNDバウンスノイズを検出するノイズ検出回路と、
このノイズ検出回路が前記GNDバウンスノイズを検出したとき、該GNDバウンスノイズに相当する逆相のキャンセル信号を生成して前記接地ラインに加えるキャンセル信号生成回路とを備えたことを特徴としている。
Vop1={(R1+R2)/R1}×Vcs
として出力電圧Vop1を求める。尚、R1=R2のときには、前記出力電圧Vop1は、
Vop1=2×Vcs
として求められる。
Vop2=−(R4/R3)×Vop1=Vcan
として前記出力電圧(キャンセル信号)Vcanを求める。尚、R1=R2で,且つ、前記入力抵抗R3と帰還抵抗R4の比が[3:2]のとき、前記反転増幅回路22の出力電圧Vop2(=Vcan)は、
Vop2=−(1/3)×Vcs
として求められる。
Q スイッチング素子
T トランス
D ダイオード
Cout 出力コンデンサ
CONT 制御回路(制御IC)
10 ノイズ検出回路
20 キャンセル信号生成回路
21 非反転増幅器
22 反転増幅器
Claims (5)
- スイッチング素子を介して入力電圧をスイッチングして所定の出力電圧を得るスイッチング電源装置本体と、
前記スイッチング素子を所定の周波数でオン・オフ駆動する制御回路と、
前記制御回路の接地ラインに介装したカレントトランスの出力電圧が、前記スイッチング素子のスイッチング周期に同期して一定回数に亘って連続して予め設定したノイズ検出判定レベルを超えたとき、GNDバウンスノイズが発生したとして検出するノイズ検出回路と、
このノイズ検出回路が前記GNDバウンスノイズを検出したとき、該GNDバウンスノイズに相当する逆相のキャンセル信号を生成して前記接地ラインに加えるキャンセル信号生成回路と
を具備したことを特徴とするスイッチング電源装置。 - 前記ノイズ検出回路および前記キャンセル信号生成回路は、それぞれ前記制御回路に組み込まれるものである請求項1に記載のスイッチング電源装置。
- 前記ノイズ検出回路は、前記カレントトランスの出力電圧と前記ノイズ検出判定レベルとを比較する比較器と、該比較器の出力の反転回数を計数するカウンタとを備え、
当該カウンタの出力をもとに前記GNDバウンスノイズを検出することを特徴とする請求項1に記載のスイッチング電源装置。 - 前記キャンセル信号生成回路は、前記スイッチング素子に流れる電流に基づいて前記キャンセル信号を生成することを特徴とする請求項1乃至3のいずれかに記載のスイッチング電源装置。
- 前記キャンセル信号生成回路は、前記ノイズ検出回路における前記GNDバウンスノイズの検出判定レベルを波高値とするパルス信号を前記キャンセル信号として生成することを特徴とする請求項1乃至3に記載のスイッチング電源装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012195612A JP6040647B2 (ja) | 2012-09-05 | 2012-09-05 | スイッチング電源装置 |
US13/962,334 US9300204B2 (en) | 2012-09-05 | 2013-08-08 | Switching power supply |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012195612A JP6040647B2 (ja) | 2012-09-05 | 2012-09-05 | スイッチング電源装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014054031A JP2014054031A (ja) | 2014-03-20 |
JP6040647B2 true JP6040647B2 (ja) | 2016-12-07 |
Family
ID=50186620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012195612A Active JP6040647B2 (ja) | 2012-09-05 | 2012-09-05 | スイッチング電源装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US9300204B2 (ja) |
JP (1) | JP6040647B2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015152834A1 (en) * | 2014-04-02 | 2015-10-08 | Nanyang Technological University | A dead time circuit for a switching circuit and a switching amplifier |
US9152237B1 (en) * | 2014-06-17 | 2015-10-06 | Realtek Semiconductor Corp. | Power bouncing reduction circuit and method thereof |
EP2990815B1 (en) * | 2014-08-27 | 2018-06-20 | Nxp B.V. | Noise detection circuit |
CN110574299B (zh) * | 2017-05-11 | 2021-12-07 | 雅马哈株式会社 | 发送装置及接收装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3236946A (en) * | 1963-03-15 | 1966-02-22 | Motorola Inc | Transistor noise gate with noise cancellation by collector to base signal conductor |
JPH05122047A (ja) * | 1991-10-28 | 1993-05-18 | Sony Corp | グランドバウンス防止方法 |
JPH05335927A (ja) * | 1992-06-02 | 1993-12-17 | Toshiba Corp | 半導体装置 |
US5604453A (en) * | 1993-04-23 | 1997-02-18 | Altera Corporation | Circuit for reducing ground bounce |
JPH10126237A (ja) | 1996-10-18 | 1998-05-15 | Pfu Ltd | スイッチングノイズキャンセル回路 |
JP3166840B2 (ja) * | 1998-03-10 | 2001-05-14 | 日本電気株式会社 | 波形出力回路及びそれを備えたデバイス |
US6856179B2 (en) * | 2001-07-27 | 2005-02-15 | Stmicroelectronics Pvt. Ltd. | CMOS buffer with reduced ground bounce |
JP4663404B2 (ja) | 2005-05-27 | 2011-04-06 | 株式会社デンソー | 車載用高電圧モータ装置用コモンモードノイズキャンセル回路装置 |
JP5298473B2 (ja) * | 2007-07-23 | 2013-09-25 | 富士電機株式会社 | 半導体装置 |
-
2012
- 2012-09-05 JP JP2012195612A patent/JP6040647B2/ja active Active
-
2013
- 2013-08-08 US US13/962,334 patent/US9300204B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US9300204B2 (en) | 2016-03-29 |
JP2014054031A (ja) | 2014-03-20 |
US20140062439A1 (en) | 2014-03-06 |
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