JPS60183967A - High voltage dc stabilized power source - Google Patents
High voltage dc stabilized power sourceInfo
- Publication number
- JPS60183967A JPS60183967A JP3757884A JP3757884A JPS60183967A JP S60183967 A JPS60183967 A JP S60183967A JP 3757884 A JP3757884 A JP 3757884A JP 3757884 A JP3757884 A JP 3757884A JP S60183967 A JPS60183967 A JP S60183967A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- output
- circuit
- supplied
- converter
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明のゴ文ｖｉＪ分歩ｒ」
こＶ％明は、例えば６瀘性が高＜ 、Ｌ ；ｙ・も、篩
電圧が要求され／）貝１ｉＩに通用もれる為圧直流安定
化電ａ徂装置ハ忙に関する。[Detailed Description of the Invention] [Gobun of the Invention] This V% brightness, for example, has a high filtering property of < , L ; y, also requires a sieve voltage/) and is applicable to shellfish 1iI. Regarding the operation of the voltage DC stabilizing electric device.
〔発明の技術的背京とその間照点３
渕知のように、各層性負荷に通用される高圧直ν；Ｃ安
に化電源装置は従来よシフライパック方式が用いられて
いる。[Technical Background of the Invention and Points of Interest 3] As mentioned by Fuchi, the shift fly pack system has been conventionally used for high-voltage DC power supplies that are used in various layered loads.
第１図は従来の高圧匿υｌｊ安定化’Ｐｉｔ源装置を示
すものであり、入力端１１．１２には直流−圧が供給さ
れる。この入力端１１にはコンバータ１３を構成するト
ランス１４の一次巻線１４１の一端部が接続式れ、この
−次巻線１４１の他端部はスイッチング素子、例えばト
ランジスタ１５のコレクタに接続される。このトランジ
スタＺ５のエミッタは前記入力端１２に接１元され、ベ
ースは・！シス１５号を出力するドライブ回路１６の出
力端に接続される。しかして、このドライブ回路１６よ
シ出力されるパルス信号によってトランジスタ１５がス
イッチングされ、入力能θｉｌ ’＋［圧がチピツピン
グされる。一方、トランス１４の二次巻−１４冨の一端
部はダイオード１７を順方向に介して出力端１８に接続
δれ、他端郁は出力端１９に接続される。これら出力１
８，１９の相互間には容λ性負荷２０が接続され、この
ｄ量性貝荷２０には前記コンバータ部１３で昇圧、盈流
された出力電圧が供給される。また、前記出力端１８．
１９の相互間には出力電圧検出回路２Ｉを構成する抵抗
２１！ 。FIG. 1 shows a conventional high-voltage isolated υlj stabilized 'Pit source device, in which input terminals 11, 12 are supplied with DC-pressure. One end of a primary winding 141 of a transformer 14 constituting the converter 13 is connected to this input terminal 11, and the other end of this secondary winding 141 is connected to a switching element, for example, a collector of a transistor 15. The emitter of this transistor Z5 is connected to the input terminal 12, and the base is ! It is connected to the output end of the drive circuit 16 that outputs the system No. 15. The transistor 15 is switched by the pulse signal output from the drive circuit 16, and the input voltage θil'+[pressure is chipped. On the other hand, one end of the secondary winding 14 of the transformer 14 is connected to the output end 18 via the diode 17 in the forward direction, and the other end is connected to the output end 19. These outputs 1
A λ capacitive load 20 is connected between 8 and 19, and the output voltage boosted and drained by the converter section 13 is supplied to this d capacitive load 20. Further, the output end 18.
19, there is a resistor 21! which constitutes the output voltage detection circuit 2I. .
２１、が直列接続葛れ、これら抵抗２１１．２１ｇの接
続部より出力電圧が分圧して取出される。21 and 21 are connected in series, and the output voltage is divided and taken out from the connection between these resistors 211 and 21g.
この分圧出力は誤差増１鵬器２２に供給され、この誤差
Ｍ幅器２２において基準電圧Ｖ、と比較される。この比
較出力イイ号はパルス幅メヒ矩回路２３に供給され、こ
のノＪ？ルス幅設定回路２３において前記比軟出力信号
に応じたパルス幅の・イルスＩＪ号を発生する。このパ
ル１１６号は前記ドライブ回路Ｉ６を介してトランジス
タ１５に洪給嘔れ、このトランジスタ１５がスイッチン
グされて出力１ｍ流゛屯圧のｆｔ１ｌＪ御がなされる。This divided voltage output is supplied to an error multiplier 22, where it is compared with a reference voltage V. This comparison output No. is supplied to the pulse width mech rectangle circuit 23, and this No.J? A pulse width setting circuit 23 generates pulse IJ with a pulse width corresponding to the soft output signal. This pulse No. 116 flows through the drive circuit I6 to the transistor 15, and this transistor 15 is switched to control the output 1m current pressure ft1lJ.
ところで、上記装置は負荷電流が少ない場合においても
ノ４ルス幅を絞った状態で回路全体は常に動作されてい
る。この動作はｍｓの゛電源装置のような大きな負帰還
回路を有しているため、ハンチング防止を行う必要があ
る。また、出力電圧回路２２はインピーダンスが高く、
電源自体ＯｆＷッピング周波１１Ｌ 等による誘導があ
り、高摺度化が困離であった。Incidentally, in the above device, even when the load current is small, the entire circuit is always operated with a narrowed pulse width. Since this operation has a large negative feedback circuit like a ms power supply, it is necessary to prevent hunting. Further, the output voltage circuit 22 has high impedance,
The power supply itself was induced by the OfW frequency 11L, etc., making it difficult to achieve high friction.
この発明は上記事情に基づいてなされたもので、その目
的とするところはハンチング防止回路が不要で、？）シ
、電源自体のチ「ラビング周波数等の誘導を受けに＜＜
、シかも、高Ｍ度化が容易で高効率のｈ正直流安定化電
源装置を提供しようとするものである。This invention was made based on the above circumstances, and its purpose is to eliminate the need for a hunting prevention circuit. ), the power supply itself is guided by the rubbing frequency, etc.
In addition, the present invention aims to provide a high-efficiency straight current stabilized power supply device that can easily be made to have a high M degree.
この発明は出力電圧に比例しだノ臂ルス幅のパルス信号
を発生するとともに、出力電圧に応じた前記パルス１５
号をドライブ回路に供給または停止することによシ出力
％圧を制御するものである。This invention generates a pulse signal with a pulse width proportional to the output voltage, and generates the pulse signal 15 in accordance with the output voltage.
The output % pressure is controlled by supplying or stopping the signal to the drive circuit.
以下、この発明の一実施例について図面をｄ照して説明
する。尚、第２図において第１図と同一部分には同一符
号を付し、異なる部分についてのみ説明する。An embodiment of the present invention will be described below with reference to the drawings. In FIG. 2, the same parts as in FIG. 1 are given the same reference numerals, and only the different parts will be explained.
！Ｌ ２１Ｊにおいて、出力電圧検出回路２１より取出
された分圧電圧は・平ルス幅設定回路３１に供給され、
このパルス幅設定回１３３ｚにおいて出力電圧に比例し
た・臂ルス幅を有するノ！ルス信号が発生される。即も
、出力電圧が而くなればパルス幅が広く、出力電圧が低
くなれば・ンルス幅が狭い／４′ルス（１号が発生され
る。このようにしそ発生された／ｆルス１ｇ号はコンバ
ータオン／オフ制御部３２に供給される。! At L21J, the divided voltage taken out from the output voltage detection circuit 21 is supplied to the normal pulse width setting circuit 31,
In this pulse width setting circuit 133z, the pulse width is proportional to the output voltage. A pulse signal is generated. Immediately, as the output voltage decreases, the pulse width becomes wider, and as the output voltage decreases, the pulse width becomes narrower. is supplied to the converter on/off control section 32.
また、前記出力′曵圧検出回路ｚ１より取出された分圧
電圧は、比較回路３３の一方入力端に供給される。この
比較回路３３はヒステリシス特性をもつコンＩ母レータ
で構成されていて、その他方入力端には基準電圧発生回
路３５より基準電圧Ｖ、が供給される◎
前に！第１の比較回路３３では分圧′配圧と４１１＆電
圧Ｖ、とが比較される。ここで、コンノ９レータにヒス
テリシス％性０（１’ｒｅ ４だせ第３図に示す２つの
蘭イ直をもたせである。この比較出力信号はＩ￥ＩＪ記
コンバータオン／オフ制御部ｓ ｚ Ｋ供給サレ、この
制御部３２がオン・オフ制御される。例えは、分圧１１
圧が基準電圧Ｖ、のＨの帝の下端か、それより八い場合
は比較出力信号によって、コンバータオン／オフ制ｖｌ
Ｉ部３２がオン状態となされ、ＦＪＩＪ ’６１２ ”
ルス幅設定回路３１の出力１イ号″がドライブ回路１６
を介してコンバーター３に供給される。したがって、こ
のコンバーター３では出力電圧を上げるよう一連の動作
が行われる。Further, the divided voltage taken out from the output voltage detection circuit z1 is supplied to one input terminal of the comparator circuit 33. This comparison circuit 33 is composed of a converter I generator with hysteresis characteristics, and the other input terminal is supplied with a reference voltage V from a reference voltage generation circuit 35◎ Before! In the first comparison circuit 33, the divided voltage ' distribution and 411 & voltage V are compared. Here, the converter has a hysteresis percentage of 0 (1're 4) and has two outputs as shown in FIG. Supply control, this control unit 32 is controlled on/off.For example, partial pressure 11
If the voltage is at or above the lower limit of H of the reference voltage V, the converter on/off control vl is determined by the comparison output signal.
I section 32 is turned on, and FJIJ '612''
The output No. 1'' of the pulse width setting circuit 31 is the drive circuit 16.
is supplied to the converter 3 via. Therefore, this converter 3 performs a series of operations to increase the output voltage.
一方、出力゛酸比が基＄電圧Ｖのヒステリ７スの帯の上
端か、それよシ高くなった場合は、コンバータオン／オ
フ制御部３２がオフとなシ、〕４ルス幅設定回路３Ｉで
作シ出される出力電圧に比νｕした一イルス信号はドラ
イブ回路１６に体送括れなくなり、コンバーター３は動
作を休止する・従って負荷側に電力は伝送されないため
出力電圧は１然に下がりて来る。この出力−圧に対応す
る分圧電圧が、またＶ （２）Ｈの帯の下端か、それよ
り低くなるとコンノ櫂−夕１３がオンになυ、出力電圧
を上げるといった動作で出力電圧を安定化するものであ
る。On the other hand, if the output acid ratio is at or above the upper end of the hysteresis band of the base voltage V, the converter on/off control section 32 is turned off. The signal νu compared to the output voltage produced by the converter 3 is no longer sent to the drive circuit 16, and the converter 3 stops operating.Therefore, no power is transmitted to the load side, so the output voltage suddenly decreases. . When the divided voltage corresponding to this output voltage falls to or below the lower end of the V (2)H band, the controller 13 turns on and stabilizes the output voltage by increasing the output voltage. It is something that becomes.
第３図は比較回路３３に設定された閾＋ｔ＋Ｌ （ヒス
テリシス）Ｈと出力電圧の関係を示すものである。同図
に示すグロく、定常動作時の出力電圧は基準電圧Ｖを中
心として比較回路３３のヒステリシス■で決まるーリッ
ジルミ圧となるが、このヒステリシスＨの最下点に、出
力電圧が下がりてきたときコンバーター３が動作され、
最上点に到達したとき１す止される。したがって、定常
動作時はコンバーター３が間欠的に動作される・尚、リ
ッジルミ圧は比較回路３３のヒステリシスに比例して犬
定され、コン／マー夕１３の動作頻度は許８’）ツブル
ミ圧に逆比例する。FIG. 3 shows the relationship between the threshold +t+L (hysteresis) H set in the comparator circuit 33 and the output voltage. As shown in the figure, the output voltage during steady operation is determined by the hysteresis (■) of the comparator circuit 33 with the reference voltage V as the center - ridge lumen pressure, but when the output voltage drops to the lowest point of this hysteresis H. Converter 3 is activated,
When it reaches the highest point, it stops one time. Therefore, during steady operation, the converter 3 is operated intermittently.The ridge pressure is determined in proportion to the hysteresis of the comparator circuit 33, and the frequency of operation of the converter 13 is limited to the 8') ridge pressure. be inversely proportional.
上記実施例によれば、パルス偏設に回路３１によって出
力電圧に比例した／！ルス幅のノ々ルス信号を発生する
とともに、このノ９ルス信号を比較回路ｓｓ、コンバー
タオン／オフ制御部３２によシ、出力電圧に応じてドラ
イブ回路１６に供給している。According to the above-mentioned embodiment, the circuit 31 distributes the pulses proportionally to the output voltage /! In addition to generating a signal having a pulse width, this signal is supplied to the drive circuit 16 according to the output voltage by the comparator circuit ss and the converter on/off control section 32.
また、コンバータ１３は比較回路３３、コンバータオン
／オフ制御部３２によって間欠的に動作されるため、従
来の連続動作される電源のようにリニアな負ｄ？ｆ還回
路がない。したがりて、ハンチング防止回路が不要でお
るとともに、誘導の少ない状態で出力電圧を検出するこ
とができるため、効率が良く、調整が容易で、高精度化
が可能となる利点を有している。Furthermore, since the converter 13 is operated intermittently by the comparison circuit 33 and the converter on/off control section 32, the linear negative d? There is no feedback circuit. Therefore, an anti-hunting circuit is not required, and the output voltage can be detected in a state with little induction, which has the advantages of high efficiency, easy adjustment, and high accuracy. .
以上詳述したようにこの発明によれば、ノ・ンチング防
止回路が不要であシ、電源自体のチョッピング周波数の
誘導を受けに＜＜、シかも、高精度化が容易で高効率の
高圧直流安定化電源装置を提供できる。As described in detail above, according to the present invention, there is no need for a knocking prevention circuit, and it is possible to use high-voltage direct current that is easy to improve accuracy and is highly efficient. A stabilized power supply can be provided.
第１図は従来の高圧直流安定化電源装置の一例を示す構
成図、第２図はこの発明に係わる尚正直流安定化＠、源
装置の一実施例を示す（４成図、第３図はこの発明の詳
細な説明するために示す図でおる口
１３・・・コンノ々−タ、１４・・・トランス、１５・
・・トランジスタ、１６・・・ト９う１１回路、２０・
・・容量性負荷、２１・・・出力電圧検出回路、３１・
・・／マルス幅設定回路、３２・・・コンノ櫂−ターオ
ンオ７ｔｌｉｌＪ卿部、３３・・・比較回路、■、・・
・基準′電圧。
出願人代理人 弁理士 鈴 江 武 彦第１図
（１３Fig. 1 is a block diagram showing an example of a conventional high-voltage DC stabilized power supply device, and Fig. 2 shows an embodiment of a direct current stabilization @ source device according to the present invention (4 diagrams, Fig. 3 are In the drawings shown for detailed explanation of this invention, ports 13...converter, 14...transformer, 15...
...Transistor, 16...G9U11 circuit, 20.
... Capacitive load, 21... Output voltage detection circuit, 31.
.../Mars width setting circuit, 32... Konno Kai-Terono7tlilJ Sirbe, 33... Comparison circuit, ■,...
・Reference voltage. Applicant's agent Patent attorney Takehiko Suzue Figure 1 (13)
Claims (1)
ｖａｔ ｔ４４圧をｆ Ｗ７ビングする＋段と、１ｊ
ｌＪ ｔ＋ｅ ｆ目ツビングされた電圧より高圧の出力
直流電圧ｆ、得々手段と、前記出力直（ｔｕ、 ’電圧
か印卯され６′８に注只１ｄＪと、前記出力１は流′−
圧に比例した・ゼルス幅の・ゼルス１．３号を殆生する
・ゼルス１＾ｉ設足回路と）＋ｊｌＪ！己出力匣υＩＣ
亀出４・Ｃ対応した匝流電１１こ基準電圧とｔ比奴する
ヒステリシス特しｔ持ノ比威回路と、この比較出力１ｄ
号に応じで前記・卆ルス設定回路の出力１イ号を前記ド
ライブ回路に供給制御する回路とて具備した高圧は流女
短化７を像装置。Input Mt with No. 4 Rust No. supplied from the drive circuit
VAT T44 pressure to f W7 + stage and 1J
lJ t+e An output DC voltage f higher than the fth voltage, preferably means, and the output direct current (tu, 'voltage is impressed and 1 dJ is applied to 6'8, the output 1 is current '-')
Proportional to the pressure / Zels width / Zels 1.3 almost generated / Zels 1^i foot circuit) + jlJ! Self-output box υIC
A hysteresis characteristic circuit corresponding to Kamede 4.C and a comparison output 1d of the reference voltage and t ratio.
The high voltage provided as a circuit for supplying and controlling the output No. 1 of the pulse setting circuit to the drive circuit according to the number of outputs is the image device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3757884A JPS60183967A (en) | 1984-02-29 | 1984-02-29 | High voltage dc stabilized power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3757884A JPS60183967A (en) | 1984-02-29 | 1984-02-29 | High voltage dc stabilized power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60183967A true JPS60183967A (en) | 1985-09-19 |
Family
ID=12501417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3757884A Pending JPS60183967A (en) | 1984-02-29 | 1984-02-29 | High voltage dc stabilized power source |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60183967A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0226264A (en) * | 1988-07-14 | 1990-01-29 | Fujitsu Ltd | Dc-dc converter |
| JPH03190563A (en) * | 1989-12-19 | 1991-08-20 | Origin Electric Co Ltd | Converter control circuit |
| JP2008131798A (en) * | 2006-11-22 | 2008-06-05 | Brother Ind Ltd | Power supply device and image forming device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59175335A (en) * | 1983-03-25 | 1984-10-04 | 富士通株式会社 | Power source protecting circuit |
-
1984
- 1984-02-29 JP JP3757884A patent/JPS60183967A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59175335A (en) * | 1983-03-25 | 1984-10-04 | 富士通株式会社 | Power source protecting circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0226264A (en) * | 1988-07-14 | 1990-01-29 | Fujitsu Ltd | Dc-dc converter |
| JPH03190563A (en) * | 1989-12-19 | 1991-08-20 | Origin Electric Co Ltd | Converter control circuit |
| JP2008131798A (en) * | 2006-11-22 | 2008-06-05 | Brother Ind Ltd | Power supply device and image forming device |
| JP4524685B2 (en) * | 2006-11-22 | 2010-08-18 | ブラザー工業株式会社 | Power supply device and image forming apparatus |
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