JPS6043068A - Constant current output switching power source - Google Patents
Constant current output switching power sourceInfo
- Publication number
- JPS6043068A JPS6043068A JP15143483A JP15143483A JPS6043068A JP S6043068 A JPS6043068 A JP S6043068A JP 15143483 A JP15143483 A JP 15143483A JP 15143483 A JP15143483 A JP 15143483A JP S6043068 A JPS6043068 A JP S6043068A
- Authority
- JP
- Japan
- Prior art keywords
- constant current
- output
- resistor
- current
- capacitor
- 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
Abstract
Description
【発明の詳細な説明】
従来の一般に使用されている定電流出力スイノチング電
源は，定電圧源を入力とし帰還を施してスイソテンダ動
作のデー−ティー比を制御することに，より定電流出力
を得るものであり，定電流源を入力とする定電流出力ス
イノチング電源は従来提案されていない。[Detailed Description of the Invention] Conventional and commonly used constant current output switching power supplies obtain a constant current output by using a constant voltage source as input and applying feedback to control the duty ratio of the switching isotender operation. Therefore, a constant current output switching power supply that uses a constant current source as input has not been proposed to date.
本発明は，」二記の点に鑑み々されたものて，その１」
釣上するきころは，定電流源を入力として安定化された
定電流出力を得ることができる定電流出力スイノチング
電源を提供することにある。The present invention has been made in consideration of the following two points, part 1.
The objective is to provide a constant current output switching power supply that can obtain a stabilized constant current output using a constant current source as input.
本発明の定１ｌ１流出力スイノチング電源は，定電流源
を入力とし，定電流源と並列に第１のコンデンサか接Ｍ
１−さＪＬ，前記第１のコンデンサと並列にトランスの
Ｊ次巻線とトランジスタの直列回路が接続され，］・ラ
ンスの２次巻線と並列にダイオードと第２のコンデンサ
が接続され第２のコンデンサと並列に第１の抵抗器と第
２の抵抗器の直列回路が接続され，第１の抵抗器の両端
を入力とするパルス幅制御回路の出力が前記トランジス
タの駆動端子に接続されている。The constant 1l1 output switching power supply of the present invention has a constant current source as an input, and a first capacitor or a connected M in parallel with the constant current source.
1-Sa JL, a J-order winding of a transformer and a series circuit of a transistor are connected in parallel with the first capacitor, and a diode and a second capacitor are connected in parallel with the secondary winding of the lance, and a second A series circuit of a first resistor and a second resistor is connected in parallel with the capacitor, and an output of a pulse width control circuit whose inputs are both ends of the first resistor is connected to a drive terminal of the transistor. There is.
以下図面を参照して本発明の詳細な説明する。The present invention will be described in detail below with reference to the drawings.
第１図は本発明による定電流出カスイツチング′：１′
ｌ源の一実施例の構成を示した回路図である。図に示さ
れるように、広知のバックブースト方式コンバータ２が
定電流源１に接続されている。乙のコンバーク２は、定
電流源１と並列に接続されたコンデンサ３と、コンデン
サ３と並列に接続されたトランス５の１次巻線６及びト
ランジスタ４と。Figure 1 shows constant current output switching ′:1′ according to the present invention.
FIG. 2 is a circuit diagram showing the configuration of an embodiment of the l source. As shown in the figure, a well-known buck-boost converter 2 is connected to a constant current source 1. The converter 2 consists of a capacitor 3 connected in parallel with the constant current source 1, a primary winding 6 of a transformer 5 and a transistor 4 connected in parallel with the capacitor 3.
トランス５の２次巻線７と並列に接続されたダイオード
８及びコンデンサ９とから構成されている。It consists of a diode 8 and a capacitor 9 connected in parallel with the secondary winding 7 of the transformer 5.
コンバータ２の□出力、すなわちコンデンサ９の両端に
は、出力電流検出抵抗１０及び負荷抵抗１１の直列回路
が接続されている。更に、出力電流検出抵抗１０の両端
（（は、ノクルス幅制御回路なるデ−−テー比制御回路
１２の入力が接続され、このデー−ティー比制御回路１
２の出力がコンバータ２のトランジスタ４の駆動端７に
接続されている。A series circuit of an output current detection resistor 10 and a load resistor 11 is connected to the square output of the converter 2, that is, to both ends of the capacitor 9. Further, both ends of the output current detection resistor 10 (() are connected to the inputs of a data ratio control circuit 12, which is a Nockles width control circuit.
2 is connected to the drive terminal 7 of the transistor 4 of the converter 2.
第２図には５巻線６，７の電流波形Ｚ Ｓ Ｉ♂０の一
例が示されている。FIG. 2 shows an example of the current waveform ZSI♂0 of the five windings 6, 7.
次に、第１図及び第２図を参照して本発明の動作原理に
ついて説明する。Next, the operating principle of the present invention will be explained with reference to FIGS. 1 and 2.
第２図において、Ｔは周期＋ ＴＯＮはトランジスタ４
のオン１１、冒Ｈ］ ｌ ’１０１ＮＦはトランジスタ
４のオフ時間を示している。Ｄをトランジスタ４０オン
時間−’ｔｃ、ｌ−６
］゛いとオシフ時間゛の比、即ちスイッチングパルスの
デユーティ−比とすれば、トランジスタ４のオン１１！
Ｊ間Ｔ。Ｎ及びオフ時間Ｔ。ｐｙ ｉｄ−、１周期Ｔと
デー−ティー比Ｄｆ、用いて次のように表わされる。In Figure 2, T is period + TON is transistor 4
ON 11, OFF] l'101NF indicates the off time of the transistor 4. If D is the ratio of the on-time of the transistor 40 -'tc,l-6] and the off-time, that is, the duty ratio of the switching pulse, then the on-time of the transistor 4 is 11!
J between T. N and off time T. It is expressed as follows using py id-, one period T and duty ratio Df.
ＴＯＮ＝Ｄ′Ｆ（１）
Ｔｏｌ、１．＝（１−Ｄ ）Ｔ （２）又、コンバータ
２の入力電流、出力電流をそれぞｆ’ＬＩ８．ｉｏとす
れば、オン時間Ｔ。Ｎにおける巻線６の平均電流ｔ８と
、オフ時間Ｔ。ＦＦにおける巻線７の平均電流２ は、
それぞれ、 （１） 、 （２）式を用いて。TON=D'F(1) Tol, 1. =(1-D)T (2) Also, the input current and output current of converter 2 are respectively f'LI8. If io is the on-time T. The average current t8 of the winding 6 at N and the off time T. The average current 2 of the winding 7 in the FF is
Using equations (1) and (2), respectively.
と表わされる。It is expressed as
ここで、トランス５の巻線６，７の巻数をそれ（’しＮ
、Ｎ とすると、トランジスタ４のターンオンオフ時の
電流連続条件から＋ ＺＳ＋ｔｏの間には。Here, the number of turns of the windings 6 and 7 of the transformer 5 is set to
, N, then from the continuous current condition when turning on and off the transistor 4, between +ZS+to.
Ｎｉ 二Ｎ ｉ （５） の関係がある。Ni 2N i (5) There is a relationship between
（３） 、 （４）式を（５）式に代入するととなり、
上式を変形して。Substituting equations (3) and (4) into equation (5), we get
Transform the above formula.
の関係が得られる。The following relationship is obtained.
（６）式から次のことが言える。すなわち、入力電流Ｉ
が一定のとき、デユーティ−比りが大きくなると出力
電流Ｊ が減少し、デー−ティー比りが小さくなると出
力電流■ が増加するので、出力電流ｌ は・、デー−
ティー比りによって調整可能である。The following can be said from equation (6). That is, the input current I
When is constant, the output current J decreases as the duty ratio increases, and the output current J increases as the duty ratio decreases, so the output current l becomes .
It can be adjusted by the tee ratio.
従って、デー−ティ比制御回路１２が、入力電流■８が
増大した時デー−ティー比りを大きクシ。Therefore, the data ratio control circuit 12 increases the data ratio when the input current (1)8 increases.
入力電流Ｉ、が減少した時デユーティ−比りを小さくす
る様構成されているので、入力電流Ｉ の変動に対して
出力市、流工。を安定化させることができる。Since the structure is configured to reduce the duty ratio when the input current I decreases, the output current and the current decrease due to fluctuations in the input current I. can be stabilized.
以」二説明した如く２本発明によると、定電流源を入力
としバックブースト方式コン・ぐ−夕のデ−ティー比制
御によって出力電流を安定化できる。As described above, according to the present invention, the output current can be stabilized by controlling the duty ratio of a buck-boost converter using a constant current source as an input.
定電流出力スイッチングミ源を提供できる効呆かある。It is effective in providing a constant current output switching source.
１１図１ｆ１１の１°ｉｉｌ ’ｌ’−な説明第１図は
本発明による定電流出力スイッチング′市ｖ１贋の一実
施例の構成を示した回路図、第２図は第１１シ１の動作
を説明するための波形図である。1°iil 'l'-Explanation of Fig. 1f11 Fig. 1 is a circuit diagram showing the configuration of an embodiment of constant current output switching according to the present invention, and Fig. 2 shows the operation of Fig. 11. FIG. 2 is a waveform diagram for explaining.
１・定’１１１ Ｍ＋、 源、 ２−・バンクツースト
方式コンノクータ、３・・コンデンサ、４・・トランジ
スタ、５・トランス、６・・十ランス５の１次巻線、７
・パトランス５の２次巻線、８・・・ダイオード、９・
コンチング、Ｊ（）・−出力電流検出抵抗、１１・・・
負荷抵抗。1. Constant '111 M+, source, 2-. Bank toist type connocoator, 3.. Capacitor, 4.. Transistor, 5. Transformer, 6.. Primary winding of ten lance 5, 7
・Secondary winding of path transformer 5, 8...diode, 9・
Conching, J()・-Output current detection resistor, 11...
Load resistance.
１２・・デー−ティー比制御回路。12...Date ratio control circuit.
Claims (1)
であって、前記定電流源と並列に接続さＩした’７４１
のコンデンサと、該第１のコンデンサと並列に接続され
たトランスの１次巻線及びトランジスタと、前記トラン
スの２次巻線に並列に接続されたダイオード及び第２の
コンデンサと、該第２のコンデンサと並列に接続された
第１の抵抗器及び第２の抵抗器と、該第１の抵抗器の両
端の電圧を入力し、出力が前記トランジスタの、駆動端
子■ A constant current output switching power supply that receives a constant current source as an input, and is connected in parallel with the constant current source.
a primary winding of a transformer and a transistor connected in parallel with the first capacitor; a diode and a second capacitor connected in parallel with the secondary winding of the transformer; A first resistor and a second resistor are connected in parallel with the capacitor, and the voltage across the first resistor is input, and the output is the drive terminal of the transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15143483A JPS6043068A (en) | 1983-08-19 | 1983-08-19 | Constant current output switching power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15143483A JPS6043068A (en) | 1983-08-19 | 1983-08-19 | Constant current output switching power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6043068A true JPS6043068A (en) | 1985-03-07 |
Family
ID=15518526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15143483A Pending JPS6043068A (en) | 1983-08-19 | 1983-08-19 | Constant current output switching power source |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6043068A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5380840A (en) * | 1985-09-12 | 1995-01-10 | The Upjohn Company | Triazinylpiperazinyl steroids |
| USRE35053E (en) * | 1985-09-12 | 1995-10-10 | The Upjohn Company | Amines useful in producing pharmaceutically active CNS compounds |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58105313A (en) * | 1981-12-17 | 1983-06-23 | Fujitsu Ltd | Constant current circuit |
-
1983
- 1983-08-19 JP JP15143483A patent/JPS6043068A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58105313A (en) * | 1981-12-17 | 1983-06-23 | Fujitsu Ltd | Constant current circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5380840A (en) * | 1985-09-12 | 1995-01-10 | The Upjohn Company | Triazinylpiperazinyl steroids |
| US5380841A (en) * | 1985-09-12 | 1995-01-10 | The Upjohn Company | Pyridinylpiperazinyl steroids |
| USRE35053E (en) * | 1985-09-12 | 1995-10-10 | The Upjohn Company | Amines useful in producing pharmaceutically active CNS compounds |
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