JP5099183B2 - 起動回路 - Google Patents
起動回路 Download PDFInfo
- Publication number
- JP5099183B2 JP5099183B2 JP2010158684A JP2010158684A JP5099183B2 JP 5099183 B2 JP5099183 B2 JP 5099183B2 JP 2010158684 A JP2010158684 A JP 2010158684A JP 2010158684 A JP2010158684 A JP 2010158684A JP 5099183 B2 JP5099183 B2 JP 5099183B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- switch element
- resistor
- power supply
- 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
Images
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
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
-
- 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
-
- 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
- H02M1/322—Means for rapidly discharging a capacitor of the converter for protecting electrical components or for preventing electrical shock
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Power Conversion In General (AREA)
Description
10,10a 起動回路
20 タイマ
21 インバータ
DB 全波整流回路
C0〜C5 コンデンサ
R1〜R12 抵抗
Q1〜Q9 スイッチ素子
D1〜D6 ダイオード
ZD2〜ZD7 ツェナーダイオード
PC フォトカプラ
T トランス
CMP1,CMP2 コンパレータ
Vref1,Vref2 基準電源
Z1 シャントレギュレータ
Claims (3)
- 交流電源の交流電圧を整流平滑した電圧を制御回路によりオンオフさせてトランスの一次巻線と二次巻線とに高周波電圧を発生させ二次巻線の高周波電圧を整流平滑して直流出力電圧を得るスイッチング電源装置に設けられ、電源起動時に前記交流電圧を整流した整流電圧により前記制御回路を起動する起動回路であって、
前記整流電圧が所定電圧以下を検出する検出回路と、
前記整流電圧が所定電圧以下から所定時間を計測するタイマと、
前記タイマで計測する所定時間内に前記整流電圧が規定電圧以下になっていない場合には、前記整流電圧を放電させる放電回路と、
を備えることを特徴とする起動回路。 - 前記放電回路は、放電抵抗とスイッチ素子とからなる直列回路を備え、前記タイマからのタイマ出力により前記スイッチ素子をオンさせて前記整流電圧を前記放電抵抗を介して放電させることを特徴とする請求項1記載の起動回路。
- 前記検出回路は、前記整流電圧と前記所定電圧とを比較する比較回路を備えることを特徴とする請求項1又は請求項2記載の起動回路。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010158684A JP5099183B2 (ja) | 2010-07-13 | 2010-07-13 | 起動回路 |
US13/177,855 US20120014145A1 (en) | 2010-07-13 | 2011-07-07 | Startup circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010158684A JP5099183B2 (ja) | 2010-07-13 | 2010-07-13 | 起動回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012023832A JP2012023832A (ja) | 2012-02-02 |
JP5099183B2 true JP5099183B2 (ja) | 2012-12-12 |
Family
ID=45466873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010158684A Active JP5099183B2 (ja) | 2010-07-13 | 2010-07-13 | 起動回路 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20120014145A1 (ja) |
JP (1) | JP5099183B2 (ja) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012033120A1 (ja) | 2010-09-10 | 2012-03-15 | 富士電機株式会社 | 電源用集積回路装置および電源遮断検出方法 |
US9030855B2 (en) * | 2011-07-14 | 2015-05-12 | Macronix International Co., Ltd. | Semiconductor device, start-up circuit having first and second circuits and a single voltage output terminal coupled to a second node between the semiconductor unit and the first circuit, and operating method for the same |
JP6083668B2 (ja) * | 2012-01-11 | 2017-02-22 | パナソニックIpマネジメント株式会社 | スイッチング電源回路 |
JP5968071B2 (ja) * | 2012-05-17 | 2016-08-10 | ニチコン株式会社 | 電力変換装置 |
JP5725305B2 (ja) * | 2012-11-14 | 2015-05-27 | 横河電機株式会社 | 2線式伝送器起動回路 |
JP6075048B2 (ja) * | 2012-12-11 | 2017-02-08 | サンケン電気株式会社 | スイッチング電源装置の制御回路 |
CN105247772B (zh) * | 2013-05-20 | 2018-07-24 | 松下知识产权经营株式会社 | 直流电源电路 |
JP6261460B2 (ja) * | 2014-06-24 | 2018-01-17 | 三菱電機株式会社 | 電源起動回路 |
US10560035B2 (en) | 2015-07-10 | 2020-02-11 | Sony Corporation | Discharge device, power supply apparatus, and discharge method with power supply cut-off detection and capacitor discharge |
US10692649B2 (en) | 2016-03-17 | 2020-06-23 | Chan Woong Park | Method and apparatus for reducing noise generated by rectification diode located at primary side of switching power supply |
US9899908B1 (en) * | 2017-02-23 | 2018-02-20 | Integrated Device Technology, Inc. | High frequency wireless power rectifier startup circuit design |
CN107508458B (zh) * | 2017-09-28 | 2021-11-12 | 广州中逸光电子科技有限公司 | 一种超宽电压辅助电源pwm芯片的启动电路 |
US10601329B2 (en) * | 2018-07-04 | 2020-03-24 | Richtek Technology Corporation | Switching regulator and power switch controller circuit thereof |
CN109995222B (zh) * | 2019-03-15 | 2020-12-11 | 中国电子科技集团公司第三十研究所 | 一种无常备供电的电源电路 |
JP7215269B2 (ja) * | 2019-03-22 | 2023-01-31 | セイコーエプソン株式会社 | 電源制御装置およびスイッチング電源 |
JP7215268B2 (ja) * | 2019-03-22 | 2023-01-31 | セイコーエプソン株式会社 | 電源制御装置およびスイッチング電源 |
CN114499142A (zh) * | 2022-04-14 | 2022-05-13 | 深圳市芯茂微电子有限公司 | 电容放电检测方法及相关组件 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3450929B2 (ja) * | 1995-03-23 | 2003-09-29 | 株式会社リコー | スイッチング電源装置 |
JP2000184718A (ja) * | 1998-12-10 | 2000-06-30 | Sharp Corp | スイッチング電源装置 |
JP2000324818A (ja) * | 1999-05-12 | 2000-11-24 | Fuji Electric Co Ltd | 電源装置 |
JP2001095261A (ja) * | 1999-09-27 | 2001-04-06 | Matsushita Electric Ind Co Ltd | ディスプレイ装置用電源回路 |
FR2812476B1 (fr) * | 2000-07-28 | 2002-10-31 | St Microelectronics Sa | Convertisseur alternatif-continu |
JP3763273B2 (ja) * | 2001-10-15 | 2006-04-05 | 富士電機機器制御株式会社 | スイッチング電源 |
JP4123886B2 (ja) * | 2002-09-24 | 2008-07-23 | 東芝ライテック株式会社 | Led点灯装置 |
US7929716B2 (en) * | 2005-01-06 | 2011-04-19 | Renesas Electronics Corporation | Voltage supply circuit, power supply circuit, microphone unit using the same, and microphone unit sensitivity adjustment method |
JP4682624B2 (ja) * | 2005-01-21 | 2011-05-11 | パナソニック株式会社 | 直流電源装置 |
US7592790B2 (en) * | 2006-04-19 | 2009-09-22 | System General Corp. | Start-up circuit with feedforward compensation for power converters |
CN101267155B (zh) * | 2007-03-13 | 2010-04-14 | 昂宝电子(上海)有限公司 | 用于为功率系统提供稳定控制的系统与方法 |
US8324756B2 (en) * | 2008-10-06 | 2012-12-04 | Texas Instruments Incorporated | Automatic on-chip detection of power supply configuration-modes for integrated chips |
US8461915B2 (en) * | 2009-06-03 | 2013-06-11 | System General Corp. | Start-up circuit to discharge EMI filter for power saving of power supplies |
US8115457B2 (en) * | 2009-07-31 | 2012-02-14 | Power Integrations, Inc. | Method and apparatus for implementing a power converter input terminal voltage discharge circuit |
US8305047B2 (en) * | 2009-09-24 | 2012-11-06 | Grenergy Opto, Inc. | Safety capacitor discharging method and apparatus for AC-to-DC converters |
-
2010
- 2010-07-13 JP JP2010158684A patent/JP5099183B2/ja active Active
-
2011
- 2011-07-07 US US13/177,855 patent/US20120014145A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20120014145A1 (en) | 2012-01-19 |
JP2012023832A (ja) | 2012-02-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5099183B2 (ja) | 起動回路 | |
US9124184B2 (en) | DC/DC converter | |
US9780594B2 (en) | Discharge circuit and power supply device therewith | |
JP5799537B2 (ja) | スイッチング電源装置の制御回路及びスイッチング電源装置 | |
US8009445B2 (en) | Switching power source apparatus | |
TWI481142B (zh) | 減少電磁干擾濾波器之功率消耗的洩放電路及方法 | |
JP5494009B2 (ja) | スイッチング制御回路及びスイッチング電源装置 | |
US9112419B2 (en) | AC/DC converter with control circuit that receives rectified voltage at input detection terminal | |
US20110002068A1 (en) | Switching regulator with fault protection and method thereof | |
KR20190025493A (ko) | 전원 제어용 반도체 장치, 전원 장치 및 x 콘덴서의 방전 방법 | |
JP6428360B2 (ja) | 電源制御用半導体装置 | |
US9106140B2 (en) | DC/DC converter | |
KR101199199B1 (ko) | 전원 공급 장치 | |
CN107317491B (zh) | 开关电源芯片及包括其的开关电源电路 | |
US20080285316A1 (en) | Ac/dc converter and ac/dc conversion method using the same | |
JP2020174523A (ja) | スイッチモード電源装置における入力フィルタコンデンサ制御回路および制御方法ならびにそれを用いた電源装置 | |
US9350251B2 (en) | Power conversion apparatus and over power protection method thereof | |
JP2014117088A (ja) | スイッチング電源装置の制御回路 | |
US9627991B2 (en) | Rectifier with indicator switch | |
CN115987106A (zh) | 电源电路 | |
JP6236295B2 (ja) | Ac/dcコンバータの保護回路、電源アダプタおよび電子機器 | |
TWI491160B (zh) | 無高壓電解電容器的電源供應器 | |
JP5401045B2 (ja) | 電源回路 | |
JP2003235262A (ja) | スイッチング電源装置 | |
JP2022061347A (ja) | 半導体集積回路装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20120525 |
|
A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20120529 |
|
A975 | Report on accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A971005 Effective date: 20120611 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120619 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120711 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20120828 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20120910 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20151005 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5099183 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |