JPH07298603A - Rectifier diode surge protection circuit - Google Patents
Rectifier diode surge protection circuitInfo
- Publication number
- JPH07298603A JPH07298603A JP8282994A JP8282994A JPH07298603A JP H07298603 A JPH07298603 A JP H07298603A JP 8282994 A JP8282994 A JP 8282994A JP 8282994 A JP8282994 A JP 8282994A JP H07298603 A JPH07298603 A JP H07298603A
- Authority
- JP
- Japan
- Prior art keywords
- surge
- rectifier diode
- main circuit
- surge absorber
- diode
- 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
Landscapes
- Power Conversion In General (AREA)
- Rectifiers (AREA)
Abstract
(57)【要約】
【目的】 部品点数を増やすことなく、整流ダイオード
にかかる異常電圧の抑制を図る。
【構成】 線間のサージを吸収するサージアブソーバ
２，対地のサージを吸収するサージアブソーバ３を端子
台１に設置するとともに、電流制限インピーダンス５を
整流ダイオード６の前段に設置し、配線４のインダクタ
ンスとストレイキャパシタ等との共振動作に対して、ダ
ンピング作用を持たせ、共振を抑制する。
(57) [Abstract] [Purpose] To suppress the abnormal voltage applied to the rectifier diode without increasing the number of parts. [Structure] A surge absorber 2 that absorbs surges between lines, a surge absorber 3 that absorbs surges to the ground are installed on the terminal block 1, and a current limiting impedance 5 is installed in front of the rectifier diode 6 to reduce the inductance of the wiring 4. A damping action is given to the resonance operation between the stray capacitor and the stray capacitor to suppress the resonance.
Description
【０００１】[0001]
【産業上の利用分野】この発明は、制御回路用の電源を
作るための例えば直流／直流変換器（ＤＣ／ＤＣコンバ
ータ）などに対して電圧を供給する整流ダイオード、特
にそのサージ保護回路に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rectifier diode for supplying a voltage to, for example, a direct current / direct current converter (DC / DC converter) for producing a power supply for a control circuit, and more particularly to a surge protection circuit thereof.
【０００２】[0002]
【従来の技術】図２はこの種の従来例を示す構成図であ
る。同図において、１は端子台、２は線間サージアブソ
ーバ、３は対地（対アース）サージアブソーバ、４は配
線、５は電流制限インピーダンス、６は整流ダイオー
ド、７はスナバコンデンサ（単にスナバともいう）、８
はダイオード、９は平滑コンデンサ、１０はＤＣ／ＤＣ
コンバータ、１１は主回路整流ダイオード、１２は主回
路平滑コンデンサ、１３は主回路スイッチング素子をそ
れぞれ示す。2. Description of the Related Art FIG. 2 is a block diagram showing a conventional example of this type. In the figure, 1 is a terminal block, 2 is a line surge absorber, 3 is a ground (to earth) surge absorber, 4 is wiring, 5 is a current limiting impedance, 6 is a rectifying diode, 7 is a snubber capacitor (also simply called snubber) ), 8
Is a diode, 9 is a smoothing capacitor, 10 is DC / DC
A converter, 11 is a main circuit rectifying diode, 12 is a main circuit smoothing capacitor, and 13 is a main circuit switching element.
【０００３】すなわち、主回路では３相交流を主回路整
流ダイオード１１で整流し、この整流した電圧を、主回
路平滑コンデンサ１２で平滑する。そして、主回路スイ
ッチング素子１３でスイッチングし、交流に変換する一
般的な構成となっている。一方、プリント板からなる補
助回路はダイオード８を介して主回路から電源の供給を
受け、これを平滑コンデンサ９によって平滑化し、ＤＣ
／ＤＣコンバータ１０に与える。電流制限インピーダン
ス５は、主回路の電源と単相を整流した電源とがぶつか
らないようにするために設けられている。That is, in the main circuit, the three-phase alternating current is rectified by the main circuit rectifying diode 11, and the rectified voltage is smoothed by the main circuit smoothing capacitor 12. Then, the main circuit switching element 13 is switched and converted into an alternating current. On the other hand, the auxiliary circuit composed of the printed board receives the power supply from the main circuit through the diode 8 and smoothes it by the smoothing capacitor 9 to generate DC.
/ DC converter 10 The current limiting impedance 5 is provided to prevent the main circuit power source and the single-phase rectified power source from colliding with each other.
【０００４】ここで、主回路電源のオフ等により主回路
の直流中間の電圧が喪失すると、ＤＣ／ＤＣコンバータ
１０の電源は、単相を整流ダイオード６にて整流した電
源により供給される。この場合の整流ダイオード６のサ
ージ保護は、線間サージに対しては線間サージアブソー
バ２により、また、対アースのサージに対しては対地サ
ージアブソーバ３によりそれぞれ行なう。なお、スナバ
７によってもサージの抑制効果が得られる。When the DC intermediate voltage of the main circuit is lost due to the turning off of the main circuit power source or the like, the power source of the DC / DC converter 10 is supplied by the power source obtained by rectifying the single phase by the rectifying diode 6. In this case, surge protection of the rectifier diode 6 is performed by the line surge absorber 2 for line surges and by the ground surge absorber 3 for earth surges. Note that the snubber 7 also has the effect of suppressing the surge.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、図２の
ような回路で対アースの耐圧試験を行なおうとすると、
プリント板に形成されているサージアブソーバ３を外さ
なければならず、作業が極めて困難である。また、過大
なサージの侵入によってサージアブソーバ２，３が破壊
した場合も、その交換は困難である。なお、交換を容易
にすべく、サージアブソーバを端子台１に設置すると、
端子台１のところでサージを吸収するが、整流ダイオー
ド６までの配線４によって共振し、この共振による過大
電圧が整流ダイオード６に掛かるおそれが生じる。した
がって、この発明の課題は部品点数を増大することな
く、整流ダイオードに掛かる過大電圧を抑制することに
ある。However, when an attempt is made to perform a withstand voltage test against earth in a circuit as shown in FIG.
Since the surge absorber 3 formed on the printed board must be removed, the work is extremely difficult. Further, even if the surge absorbers 2 and 3 are broken due to excessive intrusion of surge, it is difficult to replace them. In addition, if a surge absorber is installed on the terminal block 1 to facilitate replacement,
Although the surge is absorbed at the terminal block 1, the wiring 4 up to the rectifying diode 6 causes resonance, and an excessive voltage due to this resonance may be applied to the rectifying diode 6. Therefore, an object of the present invention is to suppress an excessive voltage applied to a rectifier diode without increasing the number of parts.
【０００６】[0006]
【課題を解決するための手段】このような課題を解決す
るため、この発明では、入力交流電圧を整流する整流ダ
イオードと、入力交流電圧に乗ってくる線間サージ，対
地サージをそれぞれ吸収する線間サージアブソーバ，対
地サージアブソーバと、前記整流ダイオードに流れる電
流を抑制するインピーダンスと、整流ダイオードをサー
ジから保護するスナバコンデンサとを設けたことを特徴
としている。In order to solve such a problem, according to the present invention, a rectifying diode for rectifying an input AC voltage, and a line for absorbing a line surge and a ground surge which are carried on the input AC voltage, respectively. An inter-surge absorber, a ground surge absorber, an impedance for suppressing a current flowing through the rectifying diode, and a snubber capacitor for protecting the rectifying diode from a surge are provided.
【０００７】[0007]
【作用】電流制限用インピーダンスをサージの侵入する
部分に設置し、配線のインダクタンスとストレーキャパ
シタ等との共振動作に対しダンピング作用を持たせ、共
振を抑制する。また、スナバコンデンサとともにＲＣフ
ィルタを形成することにより、整流ダイオードに掛かる
過大電圧を抑制する。[Function] A current limiting impedance is installed at a portion where a surge enters, and a damping action is provided to a resonance operation of the wiring inductance and a stray capacitor or the like to suppress resonance. Further, by forming the RC filter together with the snubber capacitor, the excessive voltage applied to the rectifier diode is suppressed.
【０００８】[0008]
【実施例】図１はこの発明の実施例を示す構成図であ
る。ここに、主回路は図２と全く同様なので、図示を省
略した。同図からも明らかなように、線間サージアブソ
ーバ２，対地サージアブソーバ３は端子台１に取り付
け、作業性を向上させる。また、電流制限用インピーダ
ンス５を整流ダイオード６の手前に配置し、スナバコン
デンサ７は従来と同様に設置する。1 is a block diagram showing an embodiment of the present invention. The main circuit is the same as that shown in FIG. As is clear from the figure, the inter-line surge absorber 2 and the ground surge absorber 3 are attached to the terminal block 1 to improve workability. Further, the current limiting impedance 5 is placed in front of the rectifying diode 6, and the snubber capacitor 7 is placed as in the conventional case.
【０００９】すなわち、整流ダイオード６の出力は平滑
コンデンサ９により平滑化され、ＤＣ／ＤＣコンバータ
１０に電源として与えられるとともに、主回路からの電
源供給も従来と同様にダイオード８を通して行なわれ
る。また、主回路の整流電源と単相整流した電源とは、
交流側に配置した電流制限用インピーダンス５により、
短絡しないように保護される。なお、以上では、ＤＣ／
ＤＣコンバータ１０の電源となる整流ダイオードの場合
について説明したが、このような場合に限らないことは
勿論である。That is, the output of the rectifying diode 6 is smoothed by the smoothing capacitor 9 and supplied to the DC / DC converter 10 as a power source, and power is also supplied from the main circuit through the diode 8 as in the conventional case. In addition, the rectified power source of the main circuit and the single-phase rectified power source,
Due to the current limiting impedance 5 placed on the AC side,
Protected against short circuit. In the above, DC /
Although the case of the rectifying diode serving as the power source of the DC converter 10 has been described, it goes without saying that the case is not limited to such a case.
【００１０】[0010]
【発明の効果】この発明によれば、電流制限用インピー
ダンスを交流側に移動することで、サージアブソーバを
端子台に接続しても、配線による共振を部品点数を増や
すことなく抑制することができ、さらにはスナバコンデ
ンサとのＲＣフィルタ効果によってサージを効率良く抑
制することが可能となる利点が得られる。According to the present invention, by moving the current limiting impedance to the AC side, even if the surge absorber is connected to the terminal block, resonance due to wiring can be suppressed without increasing the number of parts. Further, there is an advantage that the surge can be efficiently suppressed by the RC filter effect with the snubber capacitor.
【図１】この発明の実施例を示す構成図である。FIG. 1 is a configuration diagram showing an embodiment of the present invention.
【図２】従来例を示す構成図である。FIG. 2 is a configuration diagram showing a conventional example.
１…端子台、２…線間サージアブソーバ、３…対地サー
ジアブソーバ、４…配線、５…電流制限インピーダン
ス、６…整流ダイオード、７…スナバ、８…ダイオー
ド、９…平滑コンデンサ、１０…ＤＣ／ＤＣコンバータ
（直流／直流変換器）、１１…主回路整流ダイオード、
１２…主回路平滑コンデンサ、１３…主回路スイッチン
グ素子。DESCRIPTION OF SYMBOLS 1 ... Terminal block, 2 ... Line surge absorber, 3 ... Ground surge absorber, 4 ... Wiring, 5 ... Current limiting impedance, 6 ... Rectifying diode, 7 ... Snubber, 8 ... Diode, 9 ... Smoothing capacitor, 10 ... DC / DC converter (DC / DC converter), 11 ... Main circuit rectifying diode,
12 ... Main circuit smoothing capacitor, 13 ... Main circuit switching element.
Claims (1)
と、入力交流電圧に乗ってくる線間サージ，対地サージ
をそれぞれ吸収する線間サージアブソーバ，対地サージ
アブソーバと、前記整流ダイオードに流れる電流を抑制
するインピーダンスと、整流ダイオードをサージから保
護するスナバコンデンサとを備えてなる整流ダイオード
のサージ保護回路。1. A rectifier diode that rectifies an input AC voltage, a line surge absorber and a ground surge absorber that absorb a line surge and a ground surge, respectively, carried on the input AC voltage, and a current flowing through the rectifier diode is suppressed. Surge protection circuit for a rectifying diode, which includes an impedance that operates and a snubber capacitor that protects the rectifying diode from a surge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08282994A JP3164185B2 (en) | 1994-04-21 | 1994-04-21 | Rectifier diode surge protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08282994A JP3164185B2 (en) | 1994-04-21 | 1994-04-21 | Rectifier diode surge protection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07298603A true JPH07298603A (en) | 1995-11-10 |
| JP3164185B2 JP3164185B2 (en) | 2001-05-08 |
Family
ID=13785294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08282994A Expired - Fee Related JP3164185B2 (en) | 1994-04-21 | 1994-04-21 | Rectifier diode surge protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3164185B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6621226B2 (en) | 2001-03-09 | 2003-09-16 | Samsung Electronics Co., Ltd. | Microwave oven and method for controlling voltage thereof |
| JP2018170938A (en) * | 2017-03-30 | 2018-11-01 | パナソニックＩｐマネジメント株式会社 | Electrical equipment, power conversion system, and terminal block |
| KR102194018B1 (en) * | 2020-07-29 | 2020-12-22 | 김근식 | Surge and power factor protection circuit, and LED lighting having the same |
| US20230246435A1 (en) * | 2017-08-31 | 2023-08-03 | Eaton Intelligent Power Limited | Adjustable speed drive with integrated solid-state circuit breaker and method of operation thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4913929B2 (en) | 1998-06-12 | 2012-04-11 | 味の素株式会社 | Method for producing nucleic acid substances |
| JP7388725B2 (en) | 2021-02-18 | 2023-11-29 | 太平洋精工株式会社 | fuse |
| JP7475058B2 (en) | 2021-06-17 | 2024-04-26 | 太平洋精工株式会社 | Electrical Circuit Breaker |
-
1994
- 1994-04-21 JP JP08282994A patent/JP3164185B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6621226B2 (en) | 2001-03-09 | 2003-09-16 | Samsung Electronics Co., Ltd. | Microwave oven and method for controlling voltage thereof |
| JP2018170938A (en) * | 2017-03-30 | 2018-11-01 | パナソニックＩｐマネジメント株式会社 | Electrical equipment, power conversion system, and terminal block |
| US20230246435A1 (en) * | 2017-08-31 | 2023-08-03 | Eaton Intelligent Power Limited | Adjustable speed drive with integrated solid-state circuit breaker and method of operation thereof |
| US12034292B2 (en) * | 2017-08-31 | 2024-07-09 | Eaton Intelligent Power Limited | Adjustable speed drive with integrated solid-state circuit breaker and method of operation thereof |
| KR102194018B1 (en) * | 2020-07-29 | 2020-12-22 | 김근식 | Surge and power factor protection circuit, and LED lighting having the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3164185B2 (en) | 2001-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5905642A (en) | Apparatus and method to reduce common mode voltage from current source drives | |
| US5224029A (en) | Power factor and harmonic correction circuit including ac startup circuit | |
| US6288917B1 (en) | Three stage power conditioning circuit | |
| JP3164185B2 (en) | Rectifier diode surge protection circuit | |
| JPS58123371A (en) | Ac/dc converter | |
| JPH08265085A (en) | Higher harmonic current suppression filter | |
| JP2003116267A (en) | Power supply | |
| JPH09285000A (en) | Switching regulator | |
| KR102730094B1 (en) | Power conversion apparatus cutting off overvoltage supplied from external power source | |
| JPS6364576A (en) | Protection of inverter | |
| JP4110976B2 (en) | Switching power supply | |
| JPH07308070A (en) | Noise suppression circuit of self-excited rectifier circuit | |
| JPH05236752A (en) | Switching power supply circuit | |
| KR100435106B1 (en) | The harmonic reduction apparatus which use the resonance of the ZERO-PHARSE-SEQUENCE IMPEDANCE | |
| JP6297009B2 (en) | Power converter | |
| JPH0970142A (en) | Filter circuit | |
| JPH028533B2 (en) | ||
| JP2002374620A (en) | Surge absorber circuit | |
| KR0180480B1 (en) | Line filter circuit of smps | |
| JPS6361862B2 (en) | ||
| JP4782939B2 (en) | DC power supply for inductive loads | |
| JPS6338935B2 (en) | ||
| JP3028694B2 (en) | DC power supply | |
| JPH11252920A (en) | Rectifier circuit | |
| JP4461446B2 (en) | AC / DC power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 7 Free format text: PAYMENT UNTIL: 20080302 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 8 Free format text: PAYMENT UNTIL: 20090302 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090302 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100302 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110302 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 11 Free format text: PAYMENT UNTIL: 20120302 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 11 Free format text: PAYMENT UNTIL: 20120302 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 12 Free format text: PAYMENT UNTIL: 20130302 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130302 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140302 Year of fee payment: 13 |
|
| LAPS | Cancellation because of no payment of annual fees |