JP2005137095A - 直流電源回路およびこの直流電源回路を用いた漏電遮断器 - Google Patents
直流電源回路およびこの直流電源回路を用いた漏電遮断器 Download PDFInfo
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- JP2005137095A JP2005137095A JP2003369040A JP2003369040A JP2005137095A JP 2005137095 A JP2005137095 A JP 2005137095A JP 2003369040 A JP2003369040 A JP 2003369040A JP 2003369040 A JP2003369040 A JP 2003369040A JP 2005137095 A JP2005137095 A JP 2005137095A
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- circuit
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- resistor
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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
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
- G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices
- G05F1/44—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only
- G05F1/445—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being transistors in series with the load
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
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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)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Rectifiers (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
【解決手段】整流回路の出力にコレクタを接続した第1のトランジスタと、この第1のトランジスタのエミッタと、負荷回路との間に接続された第1の抵抗と、第1のトランジスタのコレクタとベースの間に接続された第2の抵抗と、第1のトランジスタのベースとエミッタとの間にそのエミッタ−コレクタ回路を接続した第2のトランジスタと、この第2のトランジスタのエミッタとベースの間に接続された第3の抵抗と、第2のトランジスタのベースと負荷回路との間に接続された定電圧ダイオードとにより定電流回路を構成し、前記第1および第2の両トランジスタの出力電流を前記第1の抵抗を介して負荷回路へ供給する。
【選択図】図1
Description
電流Iは、式(1)で定義されるように、トランジスタTr1のエミッタ側を流れる電
流Ieと定電圧ダイオードZD1側を流れる電流Ibとの和となる((1)式参照)。
通常I≒Ie、Ie>Ibの関係となるように抵抗r1およびr2の値が選定されて
いるので、電流Iの値は、式(2)から明らかなとおり、トランジスタTr1のベース−エミッタ間電圧Veとこの回路に挿入された定電圧ダイオードZD1のツェナー電圧VZ1とがほぼ等しくなるため、定電圧ダイオードZD1のツェナー電圧VZ1と制御抵抗r2によって決定される。また、抵抗r1と定電圧ダイオードZD1を流れる電流は、(3)式のとおりとなる。
Ie= Ve/r2 = VZ1/r2 (2)
Ib= (Vi−Vb)/r1 (3)
上記各式において、I:負荷電流、Ie:抵抗r2を流れる電流、Ib:抵抗r1および定電圧ダイオードZD1を流れる電流、Vi:整流電圧、Vb:トランジスタTr1のベース電圧、Ve:抵抗r2の端子電圧である。
41 整流回路
42 定電流回路
5 零相変流器
6 漏電検出回路
7 引外装置
Claims (3)
- 交流電源から供給される交流電圧を直流電圧に変換する整流回路からこの整流回路の出力電圧よりも低い電圧の一定の電流を負荷の制御回路に供給する定電流回路を備えた電源回路において、前記定電流回路が、前記整流回路の出力にコレクタを接続した第1のトランジスタと、この第1のトランジスタのエミッタと、負荷回路との間に接続された第1の抵抗と、第1のトランジスタのコレクタとベースの間に接続された第2の抵抗と、第1のトランジスタのベースとエミッタとの間にそのエミッタ−コレクタ回路を接続した第2のトランジスタと、この第2のトランジスタのエミッタとベースの間に接続された第3の抵抗と、第2のトランジスタのベースと負荷回路との間に接続された定電圧ダイオードとを備え、前記第1および第2の両トランジスタの出力電流を前記第1の抵抗を介して負荷回路へ供給することを特徴とする直流電源回路。
- 請求項1記載の直流電源回路を漏電遮断器に組み込んで、この直流電源回路からこの漏電遮断器内の漏電検出回路へ一定電流を供給するようにしたことを特徴とする漏電遮断器。
- 請求項2に記載の漏電遮断器において、前記直流電源回路の整流回路の交流側に抵抗を介して漏電遮断器の交流主回路を接続し、整流回路直流側に平滑コンデンサを接続したことを特徴とする漏電遮断器。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003369040A JP2005137095A (ja) | 2003-10-29 | 2003-10-29 | 直流電源回路およびこの直流電源回路を用いた漏電遮断器 |
KR1020040084213A KR20050040718A (ko) | 2003-10-29 | 2004-10-21 | 직류 전원 회로 및 이 직류 전원 회로를 이용한 누전차단기 |
FR0411258A FR2861917A1 (fr) | 2003-10-29 | 2004-10-22 | Circuit formant source d'alimentation a courant continu et interrupteur a circuit de detection de defaut de masse utilisant le circuit formant source d'alimentation a courant continu |
CNA2004100809811A CN1612459A (zh) | 2003-10-29 | 2004-10-26 | 直流电源电路和使用该直流电源电路的漏电断路器 |
DE102004052675A DE102004052675A1 (de) | 2003-10-29 | 2004-10-29 | Gleichstromversorgungsschaltung und diese enthaltender Erdschluss-Schutzschalter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003369040A JP2005137095A (ja) | 2003-10-29 | 2003-10-29 | 直流電源回路およびこの直流電源回路を用いた漏電遮断器 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2005137095A true JP2005137095A (ja) | 2005-05-26 |
Family
ID=34431225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003369040A Pending JP2005137095A (ja) | 2003-10-29 | 2003-10-29 | 直流電源回路およびこの直流電源回路を用いた漏電遮断器 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP2005137095A (ja) |
KR (1) | KR20050040718A (ja) |
CN (1) | CN1612459A (ja) |
DE (1) | DE102004052675A1 (ja) |
FR (1) | FR2861917A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2051359A1 (en) | 2007-10-09 | 2009-04-22 | Mitsubishi Electric Corporation | Power supply circuit and earth leakage circuit breaker using the same |
JP2013182680A (ja) * | 2012-02-29 | 2013-09-12 | Mitsubishi Electric Corp | 漏電遮断器 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101348526B1 (ko) * | 2011-04-27 | 2014-01-06 | 미쓰비시덴키 가부시키가이샤 | 전원회로 및 이 전원회로를 이용한 누전 차단기 |
CN102857102B (zh) * | 2011-06-30 | 2015-11-25 | 西门子公司 | 电流保护装置的电流提供组件 |
KR101277225B1 (ko) * | 2012-05-25 | 2013-06-24 | 엘에스산전 주식회사 | 직류 회로차단기의 지락 검출이 가능한 전류검출 기구 |
KR101748726B1 (ko) | 2015-07-01 | 2017-06-19 | 엘에스산전 주식회사 | 회로차단기의 정전압 공급회로 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51154334U (ja) * | 1975-06-04 | 1976-12-09 | ||
KR860000475A (ko) * | 1984-06-07 | 1986-01-29 | 홍기상 | 풍령 공기압축기 |
JPH0765953A (ja) * | 1993-08-31 | 1995-03-10 | Nec Kansai Ltd | El駆動用電源 |
KR100243876B1 (ko) * | 1997-09-19 | 2000-02-01 | 김영환 | 직류 바이어스 회로 |
KR19990032680U (ko) * | 1997-12-31 | 1999-07-26 | 추호석 | 철도차량의 정지형 인버터의 직류출력부 구조 |
JP2000357446A (ja) * | 1999-06-15 | 2000-12-26 | Fuji Electric Co Ltd | 漏電遮断器及びその電子回路部 |
-
2003
- 2003-10-29 JP JP2003369040A patent/JP2005137095A/ja active Pending
-
2004
- 2004-10-21 KR KR1020040084213A patent/KR20050040718A/ko not_active Application Discontinuation
- 2004-10-22 FR FR0411258A patent/FR2861917A1/fr not_active Withdrawn
- 2004-10-26 CN CNA2004100809811A patent/CN1612459A/zh active Pending
- 2004-10-29 DE DE102004052675A patent/DE102004052675A1/de not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2051359A1 (en) | 2007-10-09 | 2009-04-22 | Mitsubishi Electric Corporation | Power supply circuit and earth leakage circuit breaker using the same |
JP2013182680A (ja) * | 2012-02-29 | 2013-09-12 | Mitsubishi Electric Corp | 漏電遮断器 |
KR101384422B1 (ko) | 2012-02-29 | 2014-04-10 | 미쓰비시덴키 가부시키가이샤 | 누전 차단기 |
Also Published As
Publication number | Publication date |
---|---|
CN1612459A (zh) | 2005-05-04 |
KR20050040718A (ko) | 2005-05-03 |
DE102004052675A1 (de) | 2005-05-25 |
FR2861917A1 (fr) | 2005-05-06 |
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