JP3210101B2 - Constant voltage circuit of magnet type alternator - Google Patents
Constant voltage circuit of magnet type alternatorInfo
- Publication number
- JP3210101B2 JP3210101B2 JP30659792A JP30659792A JP3210101B2 JP 3210101 B2 JP3210101 B2 JP 3210101B2 JP 30659792 A JP30659792 A JP 30659792A JP 30659792 A JP30659792 A JP 30659792A JP 3210101 B2 JP3210101 B2 JP 3210101B2
- Authority
- JP
- Japan
- Prior art keywords
- magnet type
- type alternator
- voltage
- capacitor
- load
- 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.)
- Expired - Fee Related
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Control Of Charge By Means Of Generators (AREA)
Description
【０００１】[0001]
【発明の属する分野】本発明は自動車などに積載される
磁石式交流発電機のバッテリオ−プン時の過電圧防止に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnet type alternator mounted on an automobile or the like and to a method for preventing an overvoltage when a battery is opened.
【０００２】[0002]
【従来の技術】図１は従来の磁石式交流発電機の概略系
統図である。図１に於いて磁石式交流発電機ＡＣＧによ
り整流器Ｄを通してバッテリＢを充電しながら負荷Ｌに
直流電力を供給する。2. Description of the Related Art FIG. 1 is a schematic system diagram of a conventional magnet type alternator. In FIG. 1, a DC power is supplied to a load L while charging a battery B through a rectifier D by a magnet type AC generator ACG.
【０００３】負荷Ｌは電子機器類等で構成されており、
バッテリＢが外れると磁石式交流発電機ＡＣＧから発生
する高電圧が整流器Ｄを通って直接負荷Ｌ、すなわち電
子機器類等に印加され、これらの電子機器類等が破損さ
れる恐れがあった。The load L is composed of electronic devices and the like.
When the battery B comes off, a high voltage generated from the magnet type alternator ACG is applied directly to the load L, that is, the electronic devices and the like through the rectifier D, and there is a possibility that these electronic devices and the like may be damaged.
【０００４】負荷Ｌへの過電圧を防止する方法として
は、例えば実開平３−１１３４２０の磁石式交流発電機
の電圧調整器等がある。これらの回路はバッテリ端子が
オ−プンでなくても常に発電機の回転変動により出力電
圧の変動を防止しようとするものであり、回路も複雑に
なってい（２）た。As a method of preventing an overvoltage to the load L, for example, there is a voltage regulator of a magnet type AC generator of Japanese Utility Model Laid-Open No. 3-113420. These circuits always try to prevent fluctuations in the output voltage due to fluctuations in the rotation of the generator, even if the battery terminal is not open, and the circuits have become complicated (2).
【０００５】[0005]
【発明の目的】本発明はバッテリが外れた時のみ、磁石
式交流発電機の出力過電圧が電子機器等の負荷に印加さ
れるのを防止する為の、磁石式交流発電機の簡易型過電
圧防止回路を提供することを目的とする。SUMMARY OF THE INVENTION The present invention provides a simple overvoltage protection for a magnet-type alternator to prevent the output overvoltage of the magnet-type alternator from being applied to a load such as an electronic device only when the battery is disconnected. It is intended to provide a circuit.
【０００６】図２は本発明の過電圧防止回路を備えた磁
石式交流発電機の実施例、図３は本発明の磁石式交流発
電機の動作波形図である。図２において、Ｃは負荷Ｌと
並列接続されたコンデンサ、ＳはバッテリＢと該コンデ
ンサＣとの間に接続されたサイリスタ、Ｒは抵抗、Ｄｚ
は該コンデンサの電圧を検出し、その設定値と比較する
ツェナーダイオードで、該抵抗Ｒとツェナーダイオード
Ｄｚの接続点に該サイリスタのゲートが接続されてい
る。FIG. 2 is an embodiment of a magnet type AC generator provided with an overvoltage protection circuit of the present invention, and FIG. 3 is an operation waveform diagram of the magnet type AC generator of the present invention. In FIG. 2, C is a capacitor connected in parallel with the load L, S is a thyristor connected between the battery B and the capacitor C, R is a resistor, Dz
Is a Zener diode that detects the voltage of the capacitor and compares it with the set value. The gate of the thyristor is connected to a connection point between the resistor R and the Zener diode Dz.
【０００７】以下動作について説明する。通常は磁石式
交流発電機ＡＣＧから発生した電流ｉ1は整流器Ｄを通
ってバッテリＢを充電しながら、バッテリ電流ｉ2はサ
イリスタＳを通って負荷Ｌ及びコンデンサＣに供給され
る。従って磁石式交流発電機ＡＣＧが発生する電圧はバ
ッテリ電圧にクランプされ、高電圧が負荷Ｌに印加され
る事はない。The operation will be described below. Normally, the current i1 generated from the magnet type alternator ACG is supplied to the load L and the capacitor C through the thyristor S while charging the battery B through the rectifier D. Therefore, the voltage generated by the magnet type alternator ACG is clamped to the battery voltage, and no high voltage is applied to the load L.
【０００８】この時バッテリＢの端子が外れると磁石式
交流発電機ＡＣＧの出力電流ｉ1はサイリスタＳを通っ
てコンデンサＣを充電する。図３の動作波形図によって
説明すると磁石式交流発電機ＡＣＧの出力電流ｉ1はコ
ンデンサＣをＶc1まで充電する。この時磁石式交流発電
機ＡＣＧの出力インピ−ダンスは比較的大きい為、コン
デンサＣは１サイクルで磁石式交流発電機ＡＣＧのピ−
ク電圧まで充電されることはない。At this time, if the terminal of the battery B is disconnected, the output current i1 of the magnet type AC generator ACG passes through the thyristor S to charge the capacitor C. 3, the output current i1 of the magnet type alternator ACG charges the capacitor C to Vc1. At this time, since the output impedance of the magnet type alternator ACG is relatively large, the capacitor C is connected to the peak of the magnet type alternator ACG in one cycle.
The battery is not charged to the voltage.
【０００９】コンデンサＣの充電々圧Ｖc1は、磁石式交
流発電機ＡＣＧが負の半サイクルの間負荷Ｌに電力を供
給しながら放電し、Ｖc2まで放電する。この時、サイリ
スタＳの点弧を決めるツェナ−ダイオ−ドＤＺの電圧Ｖ
Zよ（３）り、コンデンサＣの電圧Ｖc2が高い場合、す
なわちＶc2＞ＶZの間中は、次のサイクルの磁石式交流
発電機の正の半サイクルが来てもサイリスタＳは逆バイ
アスがかかり、点弧せず、磁石式交流発電機ＡＣＧの出
力は阻止され、負荷ＬへはコンデンサＣの放電が続き、
負荷に電力を供給し続ける。従って負荷Ｌもコンデンサ
電圧以上に上昇する事はない。The charged voltage Vc1 of the capacitor C is discharged while the magnet type alternator ACG supplies power to the load L during the negative half cycle, and is discharged to Vc2. At this time, the voltage V of the Zener diode DZ that determines the firing of the thyristor S
When the voltage Vc2 of the capacitor C is high, that is, while Vc2> VZ, the thyristor S is reverse-biased even if the next half cycle of the magnet type alternator comes in the next cycle. Without firing, the output of the magnet type alternator ACG is blocked, the discharge of the capacitor C continues to the load L,
Continue supplying power to the load. Therefore, the load L does not rise above the capacitor voltage.
【００１０】やがてコンデンサＣの電荷が負荷Ｌに放電
して、ツェナ−ダイオ−ドＤＺの電圧ＶZより低い電圧
ＶC3にまで到達すると、すなわちＶc3＜ＶZとなるとサ
イリスタＳが導通して交流発電機ＡＣＧの出力はコンデ
ンサＣ及び負荷Ｌに供給される。When the electric charge of the capacitor C is discharged to the load L and reaches a voltage VC3 lower than the voltage VZ of the Zener diode DZ, that is, when Vc3 <VZ, the thyristor S conducts and the AC generator ACG Is supplied to a capacitor C and a load L.
【００１１】上記の繰返しが行われ、サイリスタＳはＯ
Ｎ−ＯＦＦを繰返しコンデンサＣの電圧ＶC、すなわち
負荷Ｌの電圧は過電圧になる事はない。The above is repeated, and the thyristor S is
N-OFF is repeated, and the voltage VC of the capacitor C, that is, the voltage of the load L does not become an overvoltage.
【００１２】[0012]
【発明の効果】以上説明した通り、自動車等に搭載する
磁石式交流発電機に本発明の如き簡易形の過電圧防止回
路を備える事により、バッテリ端子がオ−プンになった
時でも電子機器類等に過電圧が印加して破損することは
ない。従って汎用型の磁石式交流発電機として産業上の
利用効果大なるものである。As described above, by providing the magnet type alternator mounted on an automobile or the like with the simple overvoltage protection circuit as in the present invention, electronic devices and the like can be operated even when the battery terminal is open. There is no possibility of breakage due to the application of an overvoltage. Accordingly, the present invention has a large industrial use effect as a general-purpose magnet type alternator.
【図１】従来の磁石式交流発電機の概略系統図FIG. 1 is a schematic system diagram of a conventional magnet alternator.
【図２】本発明の過電圧防止回路を備えた磁石式交流発
電機の実施例。FIG. 2 is an embodiment of a magnet type alternator provided with the overvoltage prevention circuit of the present invention.
【図３】本発明の磁石式交流発電機の動作波形図FIG. 3 is an operation waveform diagram of the magnet type alternator of the present invention.
ＡＣＧ 磁石式交流発電機 （４）Ｄ 整流器 Ｂ バッテリ Ｌ 負荷 ＤＺ 電圧検出素子例えばツェナ−ダイオ−ド Ｒ 抵抗 Ｓ スイッチ素子例えばサイリスタ Ｃ コンデンサ ＶＡＣＧ 磁石式交流発電機開放電圧 ＶC（ＶC1、ＶC2、ＶC3） コンデンサ電圧 ＶZ ツェナ−ダイオ−ド電圧 ＶB バッテリ電圧 ACG Magnet-type alternator (4) D rectifier B Battery L Load DZ Voltage detection element such as Zener diode R Resistance S Switch element such as thyristor C Capacitor VACG Magnet-type alternator open-circuit voltage VC (VC1, VC2, VC3) Capacitor voltage VZ Zener diode voltage VB Battery voltage
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H02J 7/14 - 7/24 H02H 3/20 H02J 7/00 - 7/10 H02J 7/34 - 7/35 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) H02J 7/14-7/24 H02H 3/20 H02J 7/00-7/10 H02J 7/34-7 / 35
Claims (1)
れた整流回路とバッテリにより負荷に電力を供給する磁
石式交流発電機の定電圧回路において、前記負荷と並列
にコンデンサを接続し、該負荷及びコンデンサと前記磁
石式交流発電機及びバッテリの間には直列にサイリスタ
を設けると共に該サイリスタのゲートに該コンデンサの
電圧を検出するツェナーダイオードを接続し、該コンデ
ンサ電圧が該ツェナーダイオードの設定電圧以下の時、
該サイリスタを導通せしめるようにしたことを特徴とす
る磁石式交流発電機の定電圧回路。1. A rectifier circuit connected to an output coil of a magnet type alternator and a constant voltage circuit of a magnet type alternator for supplying power to a load by a battery, wherein a capacitor is connected in parallel with the load. A thyristor is provided in series between the load and the capacitor and the magnet type alternator and the battery, and a zener diode for detecting the voltage of the capacitor is connected to the gate of the thyristor, and the capacitor voltage is set to the set voltage of the zener diode. When:
A constant voltage circuit for a magnet type alternator, wherein the thyristor is made conductive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30659792A JP3210101B2 (en) | 1992-10-20 | 1992-10-20 | Constant voltage circuit of magnet type alternator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30659792A JP3210101B2 (en) | 1992-10-20 | 1992-10-20 | Constant voltage circuit of magnet type alternator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06141457A JPH06141457A (en) | 1994-05-20 |
| JP3210101B2 true JP3210101B2 (en) | 2001-09-17 |
Family
ID=17958992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30659792A Expired - Fee Related JP3210101B2 (en) | 1992-10-20 | 1992-10-20 | Constant voltage circuit of magnet type alternator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3210101B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013100814A (en) * | 2011-11-04 | 2013-05-23 | Ge-Hitachi Nuclear Energy Americas Llc | Fault tolerant turbine speed control system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007288916A (en) | 2006-04-17 | 2007-11-01 | Yamaha Motor Co Ltd | Voltage regulator circuit and motorcycle equipped with voltage regulator circuit |
| JP5975865B2 (en) * | 2012-12-19 | 2016-08-23 | 新電元工業株式会社 | Battery charging apparatus and control method |
-
1992
- 1992-10-20 JP JP30659792A patent/JP3210101B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013100814A (en) * | 2011-11-04 | 2013-05-23 | Ge-Hitachi Nuclear Energy Americas Llc | Fault tolerant turbine speed control system |
| US10311985B2 (en) | 2011-11-04 | 2019-06-04 | Ge-Hitachi Nuclear Energy Americas Llc | Fault tolerant turbine speed control system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06141457A (en) | 1994-05-20 |
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