JP6030836B2 - スイッチングレギュレータ - Google Patents
スイッチングレギュレータ Download PDFInfo
- Publication number
- JP6030836B2 JP6030836B2 JP2012028735A JP2012028735A JP6030836B2 JP 6030836 B2 JP6030836 B2 JP 6030836B2 JP 2012028735 A JP2012028735 A JP 2012028735A JP 2012028735 A JP2012028735 A JP 2012028735A JP 6030836 B2 JP6030836 B2 JP 6030836B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- switching regulator
- charging
- short
- 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.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/625—Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is ac or dc
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/565—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
- G05F1/569—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection
-
- 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
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/66—Regulating electric power
-
- 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
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Dc-Dc Converters (AREA)
Description
三角波発振回路3が出力する三角波信号Vrampは、周波数が一定である。PWMコンパレータ2の出力する信号Vpwmは、負荷電流の増減に応じて、デューティーが変化する。パワースイッチング素子200は、信号Vpwmによって導通時間が制御される。そして、出力端子Outの出力電圧Voutは、一定値に保たれる。
本実施形態のスイッチングレギュレータは、出力電圧分圧回路20と、基準電圧回路4と、誤差増幅器1と、PWMコンパレータ2と、三角波発振回路3と、出力バッファー5と、パワースイッチング素子200と、インダクタンス201と、ダイオード202と、平滑コンデンサー203と、短絡検出回路300と、を備えている。
さらに、回路を単純化した結果、極めて小さな面積で機能を実現することからも、コスト低減を実現出来るという効果がある。
2 PWMコンパレータ
3 三角波発振回路
4 基準電圧回路
5 バッファー回路
8 放電回路
9 充電回路
11 電圧検出回路
20 分圧回路
100 短絡検出回路
101 コンパレータ回路
102 第2の基準電圧回路
200 パワースイッチング素子
Claims (1)
- 出力端子に接続される負荷の短絡を検出する短絡検出回路を有し、PWMコンパレータの出力信号でパワースイッチング素子を制御するスイッチングレギュレータであって、
前記短絡検出回路は、容量と、前記容量を充電する充電回路と、前記容量を放電する放電回路と、前記容量の充電電圧を監視して前記充電電圧が検出電圧に達すると負荷の短絡を検出する電圧検出回路と、を備え、
前記電圧検出回路の前記検出電圧は、前記容量に対する前記充電回路の充電が、前記スイッチングレギュレータの動作周期の少なくとも2周期分の時間継続した場合に、前記容量が達する電圧値以上に設定され、
前記放電回路は、前記パワースイッチング素子を制御する信号によって制御され、前記パワースイッチング素子が前記スイッチングレギュレータの出力端子にエネルギーを供給する期間に於いて前記放電回路は放電動作を停止する、
ことを特徴としたスイッチングレギュレータ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012028735A JP6030836B2 (ja) | 2012-02-13 | 2012-02-13 | スイッチングレギュレータ |
TW102103721A TW201351862A (zh) | 2012-02-13 | 2013-01-31 | 交換調整器 |
KR1020130013745A KR101981287B1 (ko) | 2012-02-13 | 2013-02-07 | 스위칭 레귤레이터 |
US13/761,868 US8692536B2 (en) | 2012-02-13 | 2013-02-07 | Switching regulator with short-circuit detection circuit |
CN201310049936.9A CN103248219B (zh) | 2012-02-13 | 2013-02-08 | 开关调节器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012028735A JP6030836B2 (ja) | 2012-02-13 | 2012-02-13 | スイッチングレギュレータ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013165622A JP2013165622A (ja) | 2013-08-22 |
JP6030836B2 true JP6030836B2 (ja) | 2016-11-24 |
Family
ID=48927491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012028735A Expired - Fee Related JP6030836B2 (ja) | 2012-02-13 | 2012-02-13 | スイッチングレギュレータ |
Country Status (4)
Country | Link |
---|---|
US (1) | US8692536B2 (ja) |
JP (1) | JP6030836B2 (ja) |
KR (1) | KR101981287B1 (ja) |
TW (1) | TW201351862A (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105425893B (zh) * | 2015-12-04 | 2017-01-18 | 芜湖锐芯电子科技有限公司 | 车载加湿器用的驱动电路 |
JP6558832B2 (ja) * | 2016-05-14 | 2019-08-14 | コーセル株式会社 | スイッチング電源装置 |
CN107315443A (zh) * | 2017-08-18 | 2017-11-03 | 山东美创生物科技股份有限公司 | 一种对高压放电采样并输出开关量或模拟量信号的电路 |
EP3998700A4 (en) * | 2019-07-11 | 2022-07-13 | Mitsubishi Electric Corporation | ELECTRIC POWER CONVERSION DEVICE |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03106217A (ja) * | 1989-09-20 | 1991-05-02 | Hitachi Ltd | 絶縁ゲートトランジスタの駆動回路,過電流検出回路及び半導体装置 |
JPH05328711A (ja) | 1992-05-15 | 1993-12-10 | Fuji Electric Co Ltd | Dc−dcコンバ−タの短絡保護回路 |
JPH06334524A (ja) * | 1993-05-25 | 1994-12-02 | Kawasaki Steel Corp | A/dコンバータ |
JP3572292B2 (ja) * | 2002-01-29 | 2004-09-29 | 松下電器産業株式会社 | スイッチング電源回路 |
JP4191090B2 (ja) * | 2004-05-17 | 2008-12-03 | セイコーインスツル株式会社 | スイッチングレギュレータ |
JP4777730B2 (ja) * | 2005-09-20 | 2011-09-21 | セイコーインスツル株式会社 | Dc−dcコンバータ |
JP5011828B2 (ja) * | 2006-06-02 | 2012-08-29 | ソニー株式会社 | 電源装置 |
TWI325207B (en) * | 2006-06-06 | 2010-05-21 | Realtek Semiconductor Corp | Switching regulator with over current protection and method thereof |
JP4338721B2 (ja) * | 2006-08-22 | 2009-10-07 | 株式会社日立製作所 | 電力変換装置及びその異常検出方法 |
US20090116153A1 (en) * | 2007-11-05 | 2009-05-07 | Chien-Liang Lin | Power conversion system and over-load protection device thereof |
CN101911457B (zh) * | 2007-11-07 | 2014-01-08 | 德克萨斯仪器股份有限公司 | 具有与占空比无关的电流限制的电源调节器系统及其调节方法 |
JP5326804B2 (ja) * | 2008-09-29 | 2013-10-30 | 富士電機株式会社 | 力率改善電源装置、該電源装置に用いられる制御回路および制御方法 |
-
2012
- 2012-02-13 JP JP2012028735A patent/JP6030836B2/ja not_active Expired - Fee Related
-
2013
- 2013-01-31 TW TW102103721A patent/TW201351862A/zh not_active IP Right Cessation
- 2013-02-07 US US13/761,868 patent/US8692536B2/en not_active Expired - Fee Related
- 2013-02-07 KR KR1020130013745A patent/KR101981287B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
CN103248219A (zh) | 2013-08-14 |
JP2013165622A (ja) | 2013-08-22 |
TWI562519B (ja) | 2016-12-11 |
KR20130093028A (ko) | 2013-08-21 |
TW201351862A (zh) | 2013-12-16 |
US8692536B2 (en) | 2014-04-08 |
US20130207633A1 (en) | 2013-08-15 |
KR101981287B1 (ko) | 2019-05-22 |
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