JPS5832512U - switching power supply - Google Patents
switching power supplyInfo
- Publication number
- JPS5832512U JPS5832512U JP12493081U JP12493081U JPS5832512U JP S5832512 U JPS5832512 U JP S5832512U JP 12493081 U JP12493081 U JP 12493081U JP 12493081 U JP12493081 U JP 12493081U JP S5832512 U JPS5832512 U JP S5832512U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- switching power
- transformer
- winding
- resistor
- 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図は従来のスイッチング電源の回路図、第２図は同
じく別の他における回路図、第３図は本考案に係るスイ
ッチング電源の回路図、第４図ａ〜ｂは同じくそのタイ
ムチャート、第５図は同じく別の実施例における回路図
である。
Ｑｌ・・・トランジスタ、Ｑ３・・・スイッチング素子
、Ｔ１・・・変圧器、Ｎ□、 Ｎ２． Ｎ３． Ｎ１．
Ｎ５・・・変圧器の巻線、Ｃ３・・・コンデンサ、Ｒ
６・・・抵抗、６・・・比較器。FIG. 1 is a circuit diagram of a conventional switching power supply, FIG. 2 is a circuit diagram of another one, FIG. 3 is a circuit diagram of a switching power supply according to the present invention, and FIGS. 4 a to b are time charts thereof. FIG. 5 is a circuit diagram of another embodiment. Ql...Transistor, Q3...Switching element, T1...Transformer, N□, N2. N3. N1.
N5...Transformer winding, C3...Capacitor, R
6...Resistor, 6...Comparator.
Claims (1)
から入力側に正帰還をかけ自励発振動作をさせ、その発
振出力を前記変圧器の他の巻線より取り出すようにした
スイッチング電源において、前記変圧器の巻線に生ずる
フライバックエネルギーによって充電されるコンデンサ
と、前記トランジスタのオン時電流による電圧降下を生
じさせる抵抗と、前記コンデンサの充電電圧と前記抵抗
による電圧降下分とを重畳したものを基準値と比較する
比較回路と、この比較回路の比較出力によって前記トラ
ンジスタのスイッチング動作を制御するスイッチング素
子とを備えることを特徴とするスイッチング電源。７゜
（２）前記コンデンサの充電電圧と前記抵抗による電圧
降下分とを重畳したものに、前記変圧器の巻線に生じる
誘起電圧信号を重畳させる回路を有することを特徴とす
る実用新案登録請求の範囲第１項に記載のスイッチング
電源。(1) In a switching power supply in which positive feedback is applied from the output side to the input side of the transistor through the winding of the transformer to cause self-oscillation operation, and the oscillation output is taken out from the other winding of the transformer. , a capacitor that is charged by flyback energy generated in the winding of the transformer, a resistor that causes a voltage drop due to the on-state current of the transistor, and a superimposition of the charging voltage of the capacitor and the voltage drop due to the resistor. 1. A switching power supply comprising: a comparison circuit that compares a signal with a reference value; and a switching element that controls a switching operation of the transistor based on a comparison output of the comparison circuit. 7゜(2) A request for registration of a utility model characterized by having a circuit that superimposes an induced voltage signal generated in the winding of the transformer on the superposition of the charging voltage of the capacitor and the voltage drop caused by the resistor. A switching power supply according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12493081U JPS5832512U (en) | 1981-08-24 | 1981-08-24 | switching power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12493081U JPS5832512U (en) | 1981-08-24 | 1981-08-24 | switching power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5832512U true JPS5832512U (en) | 1983-03-03 |
| JPS6219105Y2 JPS6219105Y2 (en) | 1987-05-15 |
Family
ID=29918777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12493081U Granted JPS5832512U (en) | 1981-08-24 | 1981-08-24 | switching power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5832512U (en) |
-
1981
- 1981-08-24 JP JP12493081U patent/JPS5832512U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6219105Y2 (en) | 1987-05-15 |
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