JPS6329387U - - Google Patents
Info
- Publication number
- JPS6329387U JPS6329387U JP12239386U JP12239386U JPS6329387U JP S6329387 U JPS6329387 U JP S6329387U JP 12239386 U JP12239386 U JP 12239386U JP 12239386 U JP12239386 U JP 12239386U JP S6329387 U JPS6329387 U JP S6329387U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- circuit
- switching
- main power
- standby
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案の一実施例によるスイツチング
電源回路を示す回路ブロツク図、第２図は従来の
スイツチング電源回路を示す回路ブロツク図であ
る。
１……誤差検出回路、２，７……フオトカプラ
、３……制御回路、４……ドライブ回路、ＴＲ…
…スイツチングトランジスタ、Ｔ１，Ｔ２……ト
ランス、Ｄ１，Ｄ２，Ｄ３……ダイオード、Ｃ１
，Ｃ２，Ｃ３……平滑コンデンサ。
FIG. 1 is a circuit block diagram showing a switching power supply circuit according to an embodiment of the present invention, and FIG. 2 is a circuit block diagram showing a conventional switching power supply circuit. 1...Error detection circuit, 2, 7...Photocoupler, 3...Control circuit, 4...Drive circuit, TR...
...Switching transistor, T1, T2...Transformer, D1, D2, D3...Diode, C1
, C2, C3... Smoothing capacitors.
Claims (1)
圧のスタンバイ電源とを具備するスイツチング電
源回路において、メイン電源動作時の電源電圧を
検出する検出回路と、この検出回路の出力により
スタンバイ電源動作時に動作する回路に供給する
電源を前記メイン電源又はスタンバイ電源に切り
換えるスイツチ回路と、スイツチング用のトラン
ジスタをドライブするドライブ回路への制御を前
記スタンバイ電源のための所定の信号か又は前記
メイン電源のための安定化回路の信号かを切り換
えるスイツチ回路とを具備することを特徴とする
スイツチング電源回路。 In a switching power supply circuit comprising a main power supply and a standby power supply with a voltage lower than the main power supply voltage, a detection circuit that detects the power supply voltage when the main power supply is operating, and a circuit that operates when the standby power supply is operated based on the output of this detection circuit. A switch circuit that switches the power supply to the main power supply or the standby power supply, and a drive circuit that drives the switching transistor is controlled by a predetermined signal for the standby power supply or a stabilization circuit for the main power supply. 1. A switching power supply circuit comprising a switch circuit for switching between signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12239386U JPS6329387U (en) | 1986-08-09 | 1986-08-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12239386U JPS6329387U (en) | 1986-08-09 | 1986-08-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6329387U true JPS6329387U (en) | 1988-02-26 |
Family
ID=31012538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12239386U Pending JPS6329387U (en) | 1986-08-09 | 1986-08-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6329387U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03251079A (en) * | 1990-02-26 | 1991-11-08 | Origin Electric Co Ltd | Series resonance converter |
-
1986
- 1986-08-09 JP JP12239386U patent/JPS6329387U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03251079A (en) * | 1990-02-26 | 1991-11-08 | Origin Electric Co Ltd | Series resonance converter |