JPS6020770A - Rectifying power source circuit - Google Patents
Rectifying power source circuitInfo
- Publication number
- JPS6020770A JPS6020770A JP12816883A JP12816883A JPS6020770A JP S6020770 A JPS6020770 A JP S6020770A JP 12816883 A JP12816883 A JP 12816883A JP 12816883 A JP12816883 A JP 12816883A JP S6020770 A JPS6020770 A JP S6020770A
- Authority
- JP
- Japan
- Prior art keywords
- rectifier
- diodes
- circuit
- diode
- rectifying
- 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.)
- Pending
Links
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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/08—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in parallel
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
Description
【発明の詳細な説明】
技術分野
本発明は単相または多相交流電源を整流する場合、並列
に接続された全波整流回路の短絡保護回路に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a short-circuit protection circuit for full-wave rectifier circuits connected in parallel when rectifying a single-phase or multi-phase AC power source.
背景技術
従来、単相または多相交流電源の整流回路として、整流
出力電流が大きい場合には、定格電流の小さい全波整流
回路を、並列に接続して直流出力を得ている。BACKGROUND ART Conventionally, when the rectifier output current of a single-phase or multiphase AC power supply is large, full-wave rectifier circuits with small rated currents are connected in parallel to obtain a DC output.
ところが、いま第１図のような回路例において、例えば
整流ダイオード３が短絡した場合、入力交流端子２が正
電位の間は、整流電流が整流ダイオード４から、また整
流ダイオード８，１２からは平滑用チョークコイル１６
．１７と１５を経て、短絡した整流ダイオード３を通っ
て入力交流端子１へ流れこみ、入力交流の相間短絡とな
る。従って１つの整流回路の整流ダイオードの短絡事故
によって、他のすべての整流回路の整流ダイオードまで
破損してしまう。通常１つの整流回路の整流ダイオード
は一体化されたスタック構造となっているため、１つの
整流ダイオードの短絡で、すべての整流スタックが破損
してしまうという欠点があった。However, in the circuit example shown in FIG. 1, for example, if the rectifier diode 3 is short-circuited, while the input AC terminal 2 is at a positive potential, the rectified current is smoothed from the rectifier diode 4 and from the rectifier diodes 8 and 12. choke coil 16
．． 17 and 15, and flows into the input AC terminal 1 through the shorted rectifier diode 3, resulting in a short circuit between the input AC phases. Therefore, a short-circuit accident in the rectifier diodes of one rectifier circuit will damage the rectifier diodes of all other rectifier circuits. Since the rectifier diodes of one rectifier circuit usually have an integrated stack structure, there is a drawback that a short circuit of one rectifier diode will damage all the rectifier stacks.
発明の開示
本発明の目的は、上述した欠点を除去し、整流回路の中
の１つの整流ダイオードの短絡事故により、他の整流回
路が破損することを防止する回路を提供することにある
。DISCLOSURE OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and to provide a circuit that prevents other rectifier circuits from being damaged due to a short-circuit accident of one rectifier diode in the rectifier circuit.
本発明は上述の目的を達成するために、単相または多相
の入力交流電源に、少なくとも２つ以上の全波整流回路
を並列に接続して、直流を出力する回路において、前記
各整流回路の入力端子はすべて共通の交流入力端子１，
２に接続され、各整流回路の正側の出力端子には、それ
ぞれダイオード２１，２３．２５・・・・・・の各アノ
ードが接続され、これらダイオード２１，２３，２５−
・・・・・の各カソードはすべて共通に接続されて、後
続の平滑回路の正側入力端子に接続され、また、前記各
整流回路の負側の出力端子には、それぞれダイオード２
２゜２４．２６・・・・・・の各カソードが接続され、
これらダイオード２２．２４，２６−・・−・の各アノ
ードはすべて共通に接続されて、前記平滑回路の負側入
力端子に接続された構成を採用するものである。In order to achieve the above-mentioned object, the present invention provides a circuit that outputs direct current by connecting at least two or more full-wave rectifier circuits in parallel to a single-phase or multi-phase input AC power source, and each of the rectifying circuits All input terminals are common AC input terminal 1,
2, and the anodes of diodes 21, 23, 25... are connected to the positive output terminal of each rectifier circuit, and these diodes 21, 23, 25-
The cathodes of .
Each cathode of 2゜24.26... is connected,
The anodes of these diodes 22, 24, 26, . . . are all connected in common and connected to the negative input terminal of the smoothing circuit.
また、各整流回路の出力に平滑用チョークコイルを用い
る場合、正側の出力端子に接続されるダイオード２１．
２３．２５・・・・・・のそれぞれに直列にかつその前
又は後に挿入されるか、あるいは負側の出力端子に接続
されるダイオード２２．２４゜２６・・・・・・に同じ
く直列に挿入された構成となる。In addition, when using a smoothing choke coil for the output of each rectifier circuit, a diode 21.
Diodes 22, 24, 26, etc. are inserted in series with each of 23, 25, and before or after them, or connected to the negative output terminal. This is the inserted configuration.
以上説明したように、本発明によれば、各整流回路に逆
電流阻止のためのダイオードを挿入することによシ、１
つの整流回路に短絡事故が起きても他の整流回路の破損
金時ぐことができるという効果がある。As explained above, according to the present invention, by inserting a diode for blocking reverse current in each rectifier circuit,
This has the effect that even if a short circuit occurs in one rectifier circuit, damage to other rectifier circuits can be avoided.
発明を実施するだめの最良の形態 次に本発明の実施例について図面を参照して説明する。Best mode for carrying out the invention Next, embodiments of the present invention will be described with reference to the drawings.
本発明の第１の実施例を第２図に示す。３個の整流回路
の入力端子はすべて接続されて、交流入力端子１，２に
接続されている。各々の整流回路の出力には、正側には
それぞれダイオード２１゜２３．２５と平滑用チョーク
コイル１５，１６゜１７とが直列に、負側にはそれぞれ
ダイオード２２゜２４．２６が接続されて平滑回路に結
ばれている。A first embodiment of the invention is shown in FIG. The input terminals of the three rectifier circuits are all connected to AC input terminals 1 and 2. To the output of each rectifier circuit, a diode 21°23.25 and a smoothing choke coil 15, 16°17 are connected in series to the positive side, and a diode 22°24.26 is connected to the negative side, respectively. Connected to a smoothing circuit.
いま、動作中に整流ダイオード３が短絡したとすると、
端子２が正電位の場合、端子２から整流ダイオード４を
通シ、短絡した整流ダイオード３全通って、交流入力端
子１に短絡電流が流れ、整流ダイオード４は損傷を受け
る。しかし逆電流阻止のだめのダイオード２１があるた
め、整流ダイオード８のカソードからダイオード２３を
通り、平滑チョークコイル１６，１５’！に通って、短
絡したダイオード３へ流れようとする電流は流れない。Now, if rectifier diode 3 is short-circuited during operation,
When the terminal 2 has a positive potential, a short-circuit current flows from the terminal 2 through the rectifier diode 4 and through all the short-circuited rectifier diodes 3 to the AC input terminal 1, and the rectifier diode 4 is damaged. However, since there is a diode 21 to prevent reverse current, the current flows from the cathode of the rectifier diode 8 through the diode 23 to the smoothing choke coils 16, 15'! The current that would otherwise flow to the shorted diode 3 will not flow.
また整流ダイオード１２についても同様である。The same applies to the rectifier diode 12.
従って整流ダイオード８および１２は保護されることに
なる。Rectifier diodes 8 and 12 will therefore be protected.
通常、整流回路の整流ダイオードは一体化されたスタッ
ク構造になっておシ、短絡事故のあった整流ダイオード
３を含む整流スタックは取替えねばならないが、他の２
つの整流スタックは破損が防止される効果がある。Normally, the rectifier diodes in the rectifier circuit have an integrated stack structure.The rectifier stack including the rectifier diode 3 that suffered a short circuit must be replaced, but the other two
Two rectifier stacks are effective in preventing damage.
第３図は３相交流の場合の第２の実施例であシ、上述の
場合と同様に説明される。FIG. 3 shows a second embodiment in the case of three-phase alternating current, and will be explained in the same manner as in the above case.
【図面の簡単な説明】
第１図は従来の整流電源回路の一例の回路図、第２図は
本発明の第１の実施例の回路図、第３因は本発明の第２
の実施例の回路図である。
１．２・・・・・・交流大刀端子、３〜１４・・・・・
・整流ダイオ−）”、１５〜１７・・・・・・平滑チョ
ークコイル、１８・・・・・・平滑コンデンサ、１９．
２０・・−・・・直流出力端子、２１〜２６・・・・・
・ダイオード。
し三」
卒１回
早Ｚ回[Brief Description of the Drawings] Fig. 1 is a circuit diagram of an example of a conventional rectifying power supply circuit, Fig. 2 is a circuit diagram of a first embodiment of the present invention, and the third factor is a circuit diagram of an example of a conventional rectifying power supply circuit.
FIG. 3 is a circuit diagram of an embodiment of the invention. 1.2... AC long sword terminal, 3-14...
・Rectifier diode)", 15-17... Smoothing choke coil, 18... Smoothing capacitor, 19.
20...--DC output terminal, 21-26...
·diode. Shisan” Graduation 1st time early Z times
Claims (1)
つ以上の全波整流回路を並列に接続して、直流を出力す
る回路において、前記各整流回路の入力端子はすべて共
通の交流入力端子１，２に接続され、各整流回路の正側
の出力端子には、それぞれダイオード２１，２３．２５
・・・・・・の谷アノードが接続され、これらダイオー
ド２１゜２３．２５・・・・・・の各カソードはすべて
共通に接続されて、後続の平滑回路の正側入力端子に接
続され、また、前記各整流回路の負側の出力端子には、
それぞれダイオード２２．２４，２６・・・・・・の各
カソードが接続され、これらダイオード２２，２４，２
６・・・・・−の各アノードはすべて共通に接続されて
、後続の平滑回路の負側入力端子に接続されていること
を特徴とする整流電源回路。 （２）各整流回路の正側の出力端子にそれぞれ接続され
たダイオード２１．２３．２５・・・・・・に直列にそ
の前または後に、チョークコイル１５，１６゜１７・・
・・・・がそれぞれ挿入されているか、または前記各整
流回路の負側の出力端子にそれぞれ接続されたダイオー
ド２２．２４．２６・・・・・−に同じく直列に、チョ
ークコイルがそれぞれ挿入されていることを特徴とする
特許請求の範囲第１項記載の整流電源回路。[Claims] (υ At least two
In a circuit that outputs DC by connecting two or more full-wave rectifier circuits in parallel, the input terminals of each rectifier circuit are all connected to a common AC input terminal 1 and 2, and the positive side output of each rectifier circuit is Diodes 21, 23, and 25 are connected to the terminals, respectively.
The valley anodes of... are connected, and the cathodes of these diodes 21, 23, 25... are all commonly connected and connected to the positive input terminal of the subsequent smoothing circuit, In addition, the negative side output terminal of each of the rectifier circuits has
The cathodes of diodes 22, 24, 26, . . . are connected to each other, and these diodes 22, 24, 2
A rectifying power supply circuit characterized in that all the anodes of 6...- are connected in common and connected to the negative input terminal of a subsequent smoothing circuit. (2) Choke coils 15, 16, 17, etc. are connected in series to the diodes 21, 23, 25, etc. connected to the positive output terminal of each rectifier circuit, respectively, before or after them.
... are respectively inserted, or choke coils are respectively inserted in series with the diodes 22, 24, 26...- connected respectively to the negative output terminal of each of the rectifier circuits. A rectifying power supply circuit according to claim 1, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12816883A JPS6020770A (en) | 1983-07-14 | 1983-07-14 | Rectifying power source circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12816883A JPS6020770A (en) | 1983-07-14 | 1983-07-14 | Rectifying power source circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6020770A true JPS6020770A (en) | 1985-02-02 |
Family
ID=14978076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12816883A Pending JPS6020770A (en) | 1983-07-14 | 1983-07-14 | Rectifying power source circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6020770A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008211946A (en) * | 2007-02-28 | 2008-09-11 | Sanden Corp | Power conversion apparatus |
| CN103825504A (en) * | 2012-11-16 | 2014-05-28 | 中山大洋电机股份有限公司 | Draught-fan motor |
| US10514015B2 (en) | 2017-08-08 | 2019-12-24 | Honda Motor Co., Ltd. | Control device of internal combustion engine |
-
1983
- 1983-07-14 JP JP12816883A patent/JPS6020770A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008211946A (en) * | 2007-02-28 | 2008-09-11 | Sanden Corp | Power conversion apparatus |
| EP1965488A3 (en) * | 2007-02-28 | 2009-11-18 | Sanden Corporation | AC-DC power converter |
| CN103825504A (en) * | 2012-11-16 | 2014-05-28 | 中山大洋电机股份有限公司 | Draught-fan motor |
| US10514015B2 (en) | 2017-08-08 | 2019-12-24 | Honda Motor Co., Ltd. | Control device of internal combustion engine |
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