JPS63124088U - - Google Patents
Info
- Publication number
- JPS63124088U JPS63124088U JP1413587U JP1413587U JPS63124088U JP S63124088 U JPS63124088 U JP S63124088U JP 1413587 U JP1413587 U JP 1413587U JP 1413587 U JP1413587 U JP 1413587U JP S63124088 U JPS63124088 U JP S63124088U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- section
- switching
- current detection
- output
- 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 4
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000009499 grossing Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Voltage And Current In General (AREA)
- Dc-Dc Converters (AREA)
Description
第１図は本考案のスイツチング電源装置の一実
施例の構成図、第２図は従来のスイツチング電源
装置の構成図である。
３……スイツチング部、６……比較検出部、７
……直流部〔整流平滑部〕、１０……演算増幅器
〔比較部〕、Ｒ１……電流検出用抵抗〔第１の抵
抗〕、Ｒ２……抵抗〔第２の抵抗〕、Ｃ４……コ
ンデンサ。
FIG. 1 is a block diagram of an embodiment of a switching power supply according to the present invention, and FIG. 2 is a block diagram of a conventional switching power supply. 3... Switching section, 6... Comparison detection section, 7
...DC section [rectifying and smoothing section], 10... operational amplifier [comparison section], R1... resistor for current detection [first resistor], R2... resistor [second resistor], C4... capacitor.
Claims (1)
から電流検出用の第１の抵抗を介して負荷に給電
し、前記第１の抵抗の降下電圧に応じて導通する
トランジスタを第２の抵抗を介して前記スイツチ
ング部の出力に接続し、基準電圧と前記第２の抵
抗の端子電圧とを比較部で比較して前記スイツチ
ング部のスイツチング動作を制御するよう構成す
るとともに、前記第２の抵抗にコンデンサを並列
接続して前記比較部へ供給される電流検出信号を
遅延したスイツチング電源装置。 Power is supplied to the load from a rectifying and smoothing section connected to the output of the switching section via a first resistor for current detection, and a transistor which becomes conductive according to the voltage drop of the first resistor is connected via a second resistor. It is connected to the output of the switching section and is configured to compare the reference voltage and the terminal voltage of the second resistor in a comparison section to control the switching operation of the switching section, and a capacitor is connected to the second resistor. A switching power supply device connected in parallel to delay a current detection signal supplied to the comparison section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1413587U JPS63124088U (en) | 1987-02-02 | 1987-02-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1413587U JPS63124088U (en) | 1987-02-02 | 1987-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63124088U true JPS63124088U (en) | 1988-08-12 |
Family
ID=30803843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1413587U Pending JPS63124088U (en) | 1987-02-02 | 1987-02-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63124088U (en) |
-
1987
- 1987-02-02 JP JP1413587U patent/JPS63124088U/ja active Pending