JP2015005268A - ボルテージレギュレータ - Google Patents
ボルテージレギュレータ Download PDFInfo
- Publication number
- JP2015005268A JP2015005268A JP2014018757A JP2014018757A JP2015005268A JP 2015005268 A JP2015005268 A JP 2015005268A JP 2014018757 A JP2014018757 A JP 2014018757A JP 2014018757 A JP2014018757 A JP 2014018757A JP 2015005268 A JP2015005268 A JP 2015005268A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- current
- voltage regulator
- test terminal
- constant current
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 5
- 238000009966 trimming Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Images
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
- G05F1/46—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
-
- 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
-
- 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
- G05F1/573—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 with overcurrent detector
-
- 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
- G05F1/575—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 characterised by the feedback circuit
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
Description
従来のボルテージレギュレータは、基準電圧回路2と、分圧回路3と、出力トランジスタ4と、差動増幅回路10と、定電流回路11を備え、入力される入力電圧Vinから所定の出力電圧Voutを出力する。
<第一の実施形態>
図1は、第一の実施形態のボルテージレギュレータを示す回路図である。
第一の実施形態のボルテージレギュレータは、基準電圧回路2と、分圧回路3と、出力トランジスタ4と、差動増幅回路10と、定電流回路11と、保護回路13と、電流出力回路14と、制御回路15と、スイッチ回路16と、ヒューズ17及び18とを備える。
第一の実施形態では、保護回路13は過熱保護回路を例に説明するが、過電流保護回路や他の保護回路であってもよい。
先ず、定電流回路11の電流を測定する方法を説明する。
制御回路15は、スイッチ回路16をオフするように制御している。従って、テスト端子Tioは、接地端子6との間にダイオードが接続された状態になっている。この状態で、電源端子1に電源電圧Vinを入力し、ボルテージレギュレータを動作させる。
そして、この測定値を基に定電流回路11の電流値、すなわち差動増幅回路10のテール電流I10をトリミングして、精度良く合わせこむことが可能となる。
ヒューズ17は、定電流回路11の測定が終了したので、切断される。制御回路15は、スイッチ回路16をオンする。この状態で、電源端子1に電源電圧Vinを入力し、ボルテージレギュレータを動作させる。ボルテージレギュレータは、出力端子5から所定の出力電圧Voutを出力する。
最後に、ヒューズ18を切断することで、テスト端子Tioは内部回路と切り離される。
図3は、第二の実施形態のボルテージレギュレータを示す回路図である。図1との違いはスイッチ回路16に二つあったスイッチを一つにした点である。
図4は、第三の実施形態のボルテージレギュレータを示す回路図である。図3との違いはスイッチ回路16を検出回路301の電源と電源端子1の間に移動し、定電流回路302を電源端子1に接続した点である。他は図3と同様である。
11 定電圧回路
13 保護回路
14 電流出力回路
15 制御回路
101 感温素子
301 検出回路
302 定電流回路
303 感知回路
Claims (4)
- 誤差増幅回路と、前記誤差増幅回路の動作電流を供給する定電流回路と、保護回路と、前記保護回路の特性を測定するためのテスト端子と、を備えた、ボルテージレギュレータであって、
前記定電流回路の電流を前記テスト端子に出力するための電流出力回路と、
前記電流出力回路と前記テスト端子の間に設けられたヒューズと、
前記保護回路の動作を停止するためのスイッチ回路と、
を備えたことを特徴とするボルテージレギュレータ。 - 前記スイッチ回路を制御するための制御回路を備え、
前記制御回路は、前記テスト端子から前記定電流回路の電流を出力しているとき、前記スイッチ回路を制御して、前記保護回路の動作を停止させる、
ことを特徴とする請求項1に記載のボルテージレギュレータ。 - 前記保護回路は、
前記スイッチ回路にて動作を停止させる感知回路と、
前記感知回路の電圧を検出する検出回路と、
を備えたことを特徴とする請求項1または2に記載のボルテージレギュレータ。 - 前記感知回路は、温度を検出するダイオードである、
ことを特徴とする請求項3に記載のボルテージレギュレータ。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014018757A JP6250418B2 (ja) | 2013-05-23 | 2014-02-03 | ボルテージレギュレータ |
| TW103113858A TWI592783B (zh) | 2013-05-23 | 2014-04-16 | 電壓調節器 |
| US14/273,156 US9207694B2 (en) | 2013-05-23 | 2014-05-08 | Method of measuring characteristics of a protection circuit for a linear voltage regulator |
| KR1020140060745A KR102182027B1 (ko) | 2013-05-23 | 2014-05-21 | 전압 레귤레이터 |
| CN201410223523.2A CN104181966B (zh) | 2013-05-23 | 2014-05-23 | 稳压器 |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013109265 | 2013-05-23 | ||
| JP2013109265 | 2013-05-23 | ||
| JP2014018757A JP6250418B2 (ja) | 2013-05-23 | 2014-02-03 | ボルテージレギュレータ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2015005268A true JP2015005268A (ja) | 2015-01-08 |
| JP6250418B2 JP6250418B2 (ja) | 2017-12-20 |
Family
ID=51934968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014018757A Expired - Fee Related JP6250418B2 (ja) | 2013-05-23 | 2014-02-03 | ボルテージレギュレータ |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9207694B2 (ja) |
| JP (1) | JP6250418B2 (ja) |
| KR (1) | KR102182027B1 (ja) |
| CN (1) | CN104181966B (ja) |
| TW (1) | TWI592783B (ja) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9553507B1 (en) * | 2016-06-06 | 2017-01-24 | Xcelsem, Llc | Self regulating current to current charge pump |
| JP6793586B2 (ja) * | 2017-03-30 | 2020-12-02 | エイブリック株式会社 | ボルテージレギュレータ |
| JP7008523B2 (ja) * | 2018-02-05 | 2022-01-25 | エイブリック株式会社 | 過電流制限回路、過電流制限方法及び電源回路 |
| JP7126931B2 (ja) * | 2018-11-30 | 2022-08-29 | エイブリック株式会社 | 過熱保護回路及び半導体装置 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005092693A (ja) * | 2003-09-19 | 2005-04-07 | Ricoh Co Ltd | 電圧検出回路と出力制御回路および定電圧源icと電子機器 |
| JP2008140113A (ja) * | 2006-12-01 | 2008-06-19 | Seiko Instruments Inc | ボルテージレギュレータ |
| JP2011013877A (ja) * | 2009-07-01 | 2011-01-20 | Mitsumi Electric Co Ltd | 半導体装置 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3872386A (en) * | 1973-05-07 | 1975-03-18 | Gabriel J Luhowy | Test device |
| JP2706720B2 (ja) | 1990-11-28 | 1998-01-28 | セイコーインスツルメンツ株式会社 | ボルテージ・レギュレーター |
| US5548205A (en) * | 1993-11-24 | 1996-08-20 | National Semiconductor Corporation | Method and circuit for control of saturation current in voltage regulators |
| JP2005235932A (ja) * | 2004-02-18 | 2005-09-02 | Seiko Instruments Inc | ボルテージレギュレータおよびその製造方法 |
| JP2008210078A (ja) * | 2007-02-26 | 2008-09-11 | Ricoh Co Ltd | 定電圧電源回路とそのテスト方法およびそれを用いた電子機器 |
| JP5014194B2 (ja) | 2008-02-25 | 2012-08-29 | セイコーインスツル株式会社 | ボルテージレギュレータ |
| CN101650381A (zh) * | 2008-08-14 | 2010-02-17 | 联阳半导体股份有限公司 | 电源转换装置及其电流检测装置 |
| WO2011006979A1 (en) * | 2009-07-16 | 2011-01-20 | St-Ericsson (Grenoble) Sas | Low-dropout regulator |
| JP5806853B2 (ja) * | 2011-05-12 | 2015-11-10 | セイコーインスツル株式会社 | ボルテージレギュレータ |
| JP2013098599A (ja) * | 2011-10-28 | 2013-05-20 | Advantest Corp | ドライバ回路および試験装置 |
-
2014
- 2014-02-03 JP JP2014018757A patent/JP6250418B2/ja not_active Expired - Fee Related
- 2014-04-16 TW TW103113858A patent/TWI592783B/zh not_active IP Right Cessation
- 2014-05-08 US US14/273,156 patent/US9207694B2/en not_active Expired - Fee Related
- 2014-05-21 KR KR1020140060745A patent/KR102182027B1/ko not_active Expired - Fee Related
- 2014-05-23 CN CN201410223523.2A patent/CN104181966B/zh not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005092693A (ja) * | 2003-09-19 | 2005-04-07 | Ricoh Co Ltd | 電圧検出回路と出力制御回路および定電圧源icと電子機器 |
| JP2008140113A (ja) * | 2006-12-01 | 2008-06-19 | Seiko Instruments Inc | ボルテージレギュレータ |
| JP2011013877A (ja) * | 2009-07-01 | 2011-01-20 | Mitsumi Electric Co Ltd | 半導体装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20140347022A1 (en) | 2014-11-27 |
| CN104181966B (zh) | 2017-12-19 |
| TW201512802A (zh) | 2015-04-01 |
| CN104181966A (zh) | 2014-12-03 |
| US9207694B2 (en) | 2015-12-08 |
| JP6250418B2 (ja) | 2017-12-20 |
| TWI592783B (zh) | 2017-07-21 |
| KR102182027B1 (ko) | 2020-11-23 |
| KR20140138050A (ko) | 2014-12-03 |
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