JPS60190185U - Switching type power supply circuit - Google Patents
Switching type power supply circuitInfo
- Publication number
- JPS60190185U JPS60190185U JP7750484U JP7750484U JPS60190185U JP S60190185 U JPS60190185 U JP S60190185U JP 7750484 U JP7750484 U JP 7750484U JP 7750484 U JP7750484 U JP 7750484U JP S60190185 U JPS60190185 U JP S60190185U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- supply circuit
- switching
- voltage
- duty
- 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.)
- Granted
Links
Landscapes
- Dc-Dc Converters (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案スイッチング式電源回路の実施の一例を
示す回路図、第２図Ａ、 Ｂはスイッチング信号の波形
図で、Ａは入力電圧が低い時における波形、Ｂは入力電
圧が高い時における波形を示し、第３図は第１図に示し
たスイッチング式電源回路を具体化した回路例を示す回
路図、第４図は従来のスイッチング式電源回路の一例を
示す回路図である。 −
符号の説明、Ｑｓｗ・・・・・・スイッチング素子、Ｔ
１・・・・・・インダクタンス手段、ＰＣＯ・・・・・
・出力変化範囲制御回路。Figure 1 is a circuit diagram showing an example of the implementation of the switching power supply circuit of the present invention, and Figures 2A and B are waveform diagrams of switching signals, where A is the waveform when the input voltage is low and B is the waveform when the input voltage is high. 3 is a circuit diagram showing an example of a circuit embodying the switching power supply circuit shown in FIG. 1, and FIG. 4 is a circuit diagram showing an example of a conventional switching power supply circuit. - Explanation of symbols, Qsw...Switching element, T
1... Inductance means, PCO...
・Output change range control circuit.
Claims (1)
ン、オフするスイッチング素子を介してインダクタンス
手段に印加して該インダクタンス手段に高周波電圧を発
生させ、その高周波電圧を整流して直流の出力電圧を得
ると共に前記スイッチング信号のデュニテイを出力電圧
が一定になるように制御するようにしたスイッチング式
電源回路であって、スイッチング信号のデユーティを許
容範囲を越えて大きくならないように規制する出力変化
範囲制御回路を設け、該出力変化範囲制御回路により規
制される前記デユーティの許容範囲が入力電圧が高くな
る程狭くなるようにしてなることを特徴とするスイッチ
ング式電源回路。A DC input voltage is applied to the inductance means through a switching element that turns on and off in response to a high-frequency switching signal to generate a high-frequency voltage in the inductance means, and the high-frequency voltage is rectified to obtain a DC output voltage. and a switching power supply circuit that controls the duty of the switching signal so that the output voltage is constant, the switching power supply circuit including an output change range control circuit that regulates the duty of the switching signal so that it does not exceed an allowable range. A switching power supply circuit characterized in that the duty tolerance range regulated by the output change range control circuit becomes narrower as the input voltage becomes higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7750484U JPS60190185U (en) | 1984-05-26 | 1984-05-26 | Switching type power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7750484U JPS60190185U (en) | 1984-05-26 | 1984-05-26 | Switching type power supply circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60190185U true JPS60190185U (en) | 1985-12-17 |
| JPH0326794Y2 JPH0326794Y2 (en) | 1991-06-10 |
Family
ID=30620628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7750484U Granted JPS60190185U (en) | 1984-05-26 | 1984-05-26 | Switching type power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60190185U (en) |
-
1984
- 1984-05-26 JP JP7750484U patent/JPS60190185U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0326794Y2 (en) | 1991-06-10 |
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