JPH0213267A - Voltage doubler rectifier power source provided with auxiliary charging circuit - Google Patents
Voltage doubler rectifier power source provided with auxiliary charging circuitInfo
- Publication number
- JPH0213267A JPH0213267A JP16156888A JP16156888A JPH0213267A JP H0213267 A JPH0213267 A JP H0213267A JP 16156888 A JP16156888 A JP 16156888A JP 16156888 A JP16156888 A JP 16156888A JP H0213267 A JPH0213267 A JP H0213267A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- charging
- voltage doubler
- doubler rectifier
- power source
- 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
- 239000003990 capacitor Substances 0.000 claims abstract description 36
- 238000004804 winding Methods 0.000 claims abstract description 10
- 229910052724 xenon Inorganic materials 0.000 abstract description 4
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004904 shortening Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Rectifiers (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、補助充電回路を併せ備えた倍電圧整流電源に
関し、充電用コンデンサを高速充電でき、特に複写機、
ファクシミリ等のフラッシュランプ用電源として好適で
ある。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a voltage doubler rectifier power supply that is also equipped with an auxiliary charging circuit, which can charge a charging capacitor at high speed, and is particularly applicable to copying machines,
Suitable as a power source for flash lamps such as facsimile machines.
従来の技術
一般に複写機、ファクシミリ等の定着あるいはm+用と
して用いられるキセノンランプ等のフラッシュランプは
相当な高出力を要するものであるため、発光エネルギー
を充電するコンデンサに高圧、大容量のものを用い、大
きな充電電荷を蓄える必要がある。そのため、倍電圧整
流電源が一般に用いられていた。Conventional technology Generally, flash lamps such as xenon lamps used for fusing in copying machines, facsimile machines, etc. or for m+ use require considerably high output, so a high voltage, large capacity capacitor is used to charge the emitted energy. , it is necessary to store a large charge. Therefore, voltage doubler rectifier power supplies were generally used.
発明が解決しようとする課題
ところが、倍電圧整流電源はコンデンサへの充電時間が
遅いという問題があり、フラッシュランプの発光間隔を
短時間化するのに障害があった。Problems to be Solved by the Invention However, the voltage doubler rectified power supply has a problem in that the time required to charge the capacitor is slow, making it difficult to shorten the flash lamp emission interval.
本発明は、充電用コンデンサを高速充電できる補助充電
回路を併せ備えた倍電圧整流電源を提供することを目的
とするものである。An object of the present invention is to provide a voltage doubler rectifier power supply that is also equipped with an auxiliary charging circuit that can charge a charging capacitor at high speed.
課題を解決するための手段
本発明は、交流電源をトランスと倍電圧整流部を介して
充電用コンデンサに接続するとともに、前記トランスの
2次巻線と充電用コンデンサの間に補助充電用のダイオ
ードを接続することを特徴とした補助充電回路付倍電圧
整流電源を構成する。Means for Solving the Problems The present invention connects an AC power supply to a charging capacitor via a transformer and a voltage doubler rectifier, and also connects an auxiliary charging diode between the secondary winding of the transformer and the charging capacitor. This constitutes a voltage doubler rectifier power supply with an auxiliary charging circuit that is characterized by being connected to the auxiliary charging circuit.
なお、前記倍電圧整流部とは2倍圧のみならず3以上の
整数倍圧(N倍圧)のものも意味する。Note that the voltage doubler rectifier means not only a double voltage rectifier but also a voltage doubler of 3 or more (N double voltage).
作用
本発明によれば、コンデンサー・の充電初期は補助充冨
回路も介して行なわハ、その充Nff圧がある値に達す
わば倍電正整流部本来の作用のみによってコンデンサに
充電され、充N時間の高速化に寄与する。According to the present invention, the initial charging of the capacitor is performed through the auxiliary charging circuit, and when the charging Nff pressure reaches a certain value, the capacitor is charged only by the original action of the doubler positive rectifier, and the charging starts. Contributes to speeding up N hours.
実施例 本発明の実施例を図面を参照して説明する。Example Embodiments of the present invention will be described with reference to the drawings.
第1図において、交流T源ムCは、リーケージ型のトラ
ンスTと、ダイオードD2.D、、コンデンサC1から
なる倍電圧整流部DRを介して充電用コンデンサC2に
接続するとともに、トランスTの2次巻線N2と充電用
コンデンサC2の間に補助充電用のダイオードD1を接
続し、である。そして、コンデンサC2の充電電荷はキ
セノンランプのような負荷xOにトリガーが与えられる
とコイルLを介して放電し、負荷Xsがフラッシュ発光
する。In FIG. 1, an AC T source C includes a leakage type transformer T and a diode D2. D., connected to a charging capacitor C2 via a voltage doubler rectifier DR consisting of a capacitor C1, and connecting an auxiliary charging diode D1 between the secondary winding N2 of the transformer T and the charging capacitor C2; It is. Then, when a trigger is applied to a load xO such as a xenon lamp, the charge in the capacitor C2 is discharged through the coil L, causing the load Xs to emit a flash.
上記構成による動作を第2図も参照して説明する。The operation of the above configuration will be explained with reference also to FIG.
まず、倍電圧整流部DR本来の動作によるコンデンサC
2への充電を説明すれば、2次巻線N2が図示の極性と
反対の極性の時にダイオードD31!−介する電流上、
によってコンデンサC8が図示の極性で充電さねると、
2次巻線N2が図示の極性に変わった時に、2次巻線N
2とコンデンサC1の電圧が加算されてダイオードD2
を介してコンデンサC2を充電するものである。この時
のダイオードD2の電流12は図示の通りで、コンデン
サC2の充電進行に伴い、徐々に増大する。一方、コン
デンサC2の充電初期においては、2次巻線N2が図示
の極性の時にダイオードD1を介してもコンデンサC2
が充電され、交流電源ACのこの極性半波毎に図示の電
流11がダイオードD1に流れる。この電流i、は最初
は大きく、コンデンサC2の充電進行に伴いその充電電
圧Vcが2次巻線N2の端子電圧VN2付近に達する時
刻t、になると、流れなくなり、前述したように倍電圧
整流sDR本来の動作のみによってコンデンサC2の充
電電圧Toが最終電圧に達する時刻t2まで充電される
。IはコンデンサC2の充電電流でI=i、−)−i2
である。First, capacitor C due to the original operation of voltage doubler rectifier DR
2, when the secondary winding N2 has a polarity opposite to that shown, the diode D31! - on the current flowing through,
When capacitor C8 is charged with the polarity shown,
When the polarity of the secondary winding N2 changes to the one shown in the figure, the secondary winding N2
2 and the voltage of capacitor C1 are added and the voltage of diode D2
The capacitor C2 is charged via the capacitor C2. The current 12 of the diode D2 at this time is as shown in the figure, and gradually increases as the capacitor C2 progresses in charging. On the other hand, in the initial stage of charging the capacitor C2, when the secondary winding N2 has the polarity shown, the capacitor C2
is charged, and the illustrated current 11 flows through the diode D1 every half wave of this polarity of the alternating current power supply AC. This current i is large at first, but stops flowing at time t when the charging voltage Vc reaches around the terminal voltage VN2 of the secondary winding N2 as the charging of the capacitor C2 progresses, and as described above, the voltage doubler rectifier sDR Only by the original operation, the capacitor C2 is charged until the time t2 when the charging voltage To reaches the final voltage. I is the charging current of capacitor C2, I=i, -)-i2
It is.
なお、トランスTにリーケージ型のものを用いるのは、
突入電流を低減化して回路部品の損傷を防止するためで
あり、第3図のように通常のトランスTに千1−クコイ
ルL、を組み合わせて同等の機能を達成できる。In addition, when using a leakage type transformer T,
This is to reduce inrush current and prevent damage to circuit components, and the same function can be achieved by combining an ordinary transformer T with a 1,100-inch coil L, as shown in FIG.
以上のように、本実施例によれば、コンデンサC2の充
電初期には倍電圧整流iDHの動作以外に、ダイオード
D、による補助充電も行なわれ、充電時間の高速化に寄
与する。そして、コンデンサC1に小容量のものを用い
ても充電時間を速くできるので、小型化ならびに低コス
ト化にもなる。As described above, according to this embodiment, in addition to the operation of the voltage doubler rectifier iDH, auxiliary charging is performed by the diode D at the initial stage of charging the capacitor C2, contributing to speeding up the charging time. Furthermore, even if a small capacity capacitor C1 is used, the charging time can be shortened, resulting in miniaturization and cost reduction.
発明の効果
本発明によれば、倍電圧整流電源に補助充電回路を付加
したため、充電用コンデンサの充電時間を高速化できる
効果を奏し、複与機、ファクシミリ等のフラッシュラン
プ用電源として有用である。Effects of the Invention According to the present invention, since an auxiliary charging circuit is added to the voltage doubler rectifier power supply, the charging time of the charging capacitor can be speeded up, and the power supply is useful as a power supply for flash lamps of copiers, facsimile machines, etc. .
第1図は本発明の実施例を示す回路図、第2図は同動作
を示すタイミングチャート、第3図は本発明の他の実施
例を示す回路図である。
ムC・・・・・・交流電源、T・・・・・・トランス、
DR・・・・・・倍電圧整流部、C2・・・・・・充電
用コンデンサ、N2・・・・・・2次巻線、
D、・・・・・・幇助充電用のダイオード。FIG. 1 is a circuit diagram showing an embodiment of the invention, FIG. 2 is a timing chart showing the same operation, and FIG. 3 is a circuit diagram showing another embodiment of the invention. M... AC power supply, T... Transformer,
DR: voltage doubler rectifier, C2: charging capacitor, N2: secondary winding, D: auxiliary charging diode.
Claims (1)
デンサに接続するとともに、前記トランスの2次巻線と
充電用コンデンサの間に補助充電用のダイオードを接続
することを特徴とした補助充電回路付倍電圧整流電源。An auxiliary charging circuit characterized in that an AC power source is connected to a charging capacitor via a transformer and a voltage doubler rectifier, and a diode for auxiliary charging is connected between the secondary winding of the transformer and the charging capacitor. Voltage doubler rectifier power supply.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16156888A JPH0213267A (en) | 1988-06-29 | 1988-06-29 | Voltage doubler rectifier power source provided with auxiliary charging circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16156888A JPH0213267A (en) | 1988-06-29 | 1988-06-29 | Voltage doubler rectifier power source provided with auxiliary charging circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0213267A true JPH0213267A (en) | 1990-01-17 |
Family
ID=15737587
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16156888A Pending JPH0213267A (en) | 1988-06-29 | 1988-06-29 | Voltage doubler rectifier power source provided with auxiliary charging circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0213267A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS562542U (en) * | 1979-06-21 | 1981-01-10 | ||
JPS58393U (en) * | 1981-06-25 | 1983-01-05 | 株式会社東芝 | Lightning arrester |
JPS591436U (en) * | 1982-06-25 | 1984-01-07 | アイダエンジニアリング株式会社 | Oiling device |
-
1988
- 1988-06-29 JP JP16156888A patent/JPH0213267A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS562542U (en) * | 1979-06-21 | 1981-01-10 | ||
JPS58393U (en) * | 1981-06-25 | 1983-01-05 | 株式会社東芝 | Lightning arrester |
JPS591436U (en) * | 1982-06-25 | 1984-01-07 | アイダエンジニアリング株式会社 | Oiling device |
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