JPH0214123U - - Google Patents
Info
- Publication number
- JPH0214123U JPH0214123U JP9121188U JP9121188U JPH0214123U JP H0214123 U JPH0214123 U JP H0214123U JP 9121188 U JP9121188 U JP 9121188U JP 9121188 U JP9121188 U JP 9121188U JP H0214123 U JPH0214123 U JP H0214123U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- output
- converter
- converters
- constant voltage
- 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
- 230000015556 catabolic process Effects 0.000 claims 3
- 238000009499 grossing Methods 0.000 claims 3
- 239000003990 capacitor Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Description
第１図はこの考案に係る多出力直流電源回路の
一例を示す電気回路図、第２図は同多出力直流電
源回路の動作説明用の信号波形図、第３図は従来
の多出力直流電源回路の構成を示す電気回路図で
ある。
１，２……交流入力端子、３……整流回路、５
，６……ＤＣ−ＤＣコンバータ、７，８……トラ
ンス、９，１０……スイツチングトランジスタ、
２７，２８……起動用抵抗体、２９，３０……定
電圧素子。
Fig. 1 is an electric circuit diagram showing an example of a multi-output DC power supply circuit according to this invention, Fig. 2 is a signal waveform diagram for explaining the operation of the multi-output DC power supply circuit, and Fig. 3 is a conventional multi-output DC power supply. FIG. 2 is an electrical circuit diagram showing the configuration of a circuit. 1, 2... AC input terminal, 3... Rectifier circuit, 5
, 6...DC-DC converter, 7, 8... Transformer, 9, 10... Switching transistor,
27, 28... Starting resistor, 29, 30... Constant voltage element.
Claims (1)
し、この整流回路の１対の出力端間に整流出力を
平滑する１つの平滑用コンデンサを接続して、上
記平滑された電圧をスイツチングトランジスタの
ＯＮ・ＯＦＦ動作の繰り返しで交流化してトラン
スの１次側に印加するとともに、所定電圧に変換
されて上記トランスの２次側に出力された交流電
圧を直流に変換して出力する複数のＤＣ−ＤＣコ
ンバータをそれぞれ上記平滑用コンデンサに並列
接続し、これらＤＣ−ＤＣコンバータにおける各
スイツチングトランジスタの起動用抵抗体と該ス
イツチングトランジスタのベース側との間に、そ
のＤＣ−ＤＣコンバータの直流出力電圧の立ち上
がりおよび立ち下がりを決める定電圧素子をそれ
ぞれ介挿接続して、１つのＤＣ−ＤＣコンバータ
における定電圧素子の降伏電圧値を他のＤＣ−Ｄ
Ｃコンバータにおける定電圧素子の降伏電圧値よ
りも小に設定したことを特徴とする多出力直流電
源回路。 A rectifier circuit is connected between a pair of AC input terminals, and a smoothing capacitor for smoothing the rectified output is connected between a pair of output terminals of this rectifier circuit, and the smoothed voltage is switched. A plurality of voltage converters convert AC voltage by repeating ON/OFF operations of transistors and apply it to the primary side of the transformer, and convert the AC voltage to a predetermined voltage and output it to the secondary side of the transformer to DC. The DC-DC converters are connected in parallel to the smoothing capacitors, and the DC-DC converter is connected between the starting resistor of each switching transistor in these DC-DC converters and the base side of the switching transistor. By inserting and connecting constant voltage elements that determine the rise and fall of the output voltage, the breakdown voltage value of the constant voltage element in one DC-DC converter can be adjusted to the breakdown voltage value of the constant voltage element in one DC-DC converter.
A multi-output DC power supply circuit characterized in that the voltage is set to be lower than the breakdown voltage of a constant voltage element in a C converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9121188U JPH0214123U (en) | 1988-07-08 | 1988-07-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9121188U JPH0214123U (en) | 1988-07-08 | 1988-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0214123U true JPH0214123U (en) | 1990-01-29 |
Family
ID=31315697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9121188U Pending JPH0214123U (en) | 1988-07-08 | 1988-07-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0214123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010142052A (en) * | 2008-12-12 | 2010-06-24 | Aisin Seiki Co Ltd | Outdoor unit of heat pump air conditioner |
-
1988
- 1988-07-08 JP JP9121188U patent/JPH0214123U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010142052A (en) * | 2008-12-12 | 2010-06-24 | Aisin Seiki Co Ltd | Outdoor unit of heat pump air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0214123U (en) | ||
| JPS6358899U (en) | ||
| JPH0214293U (en) | ||
| JPS63100991U (en) | ||
| JPS63176378U (en) | ||
| JPS6437384U (en) | ||
| JPS62145491U (en) | ||
| JPS6358895U (en) | ||
| JPS6093492U (en) | Switching power supply control circuit | |
| JPS627784U (en) | ||
| JPS6288484U (en) | ||
| JPS6329389U (en) | ||
| JPS6317583U (en) | ||
| JPS62185488U (en) | ||
| JPH0214292U (en) | ||
| JPS6434889U (en) | ||
| JPH02129188U (en) | ||
| JPS63120586U (en) | ||
| JPH0461489U (en) | ||
| JPS6281485U (en) | ||
| JPH0217986U (en) | ||
| JPS62198884U (en) | ||
| JPH02104788U (en) | ||
| JPS5857291U (en) | DC-DC converter | |
| JPS61101483U (en) |