JPH01113585U - - Google Patents
Info
- Publication number
- JPH01113585U JPH01113585U JP721088U JP721088U JPH01113585U JP H01113585 U JPH01113585 U JP H01113585U JP 721088 U JP721088 U JP 721088U JP 721088 U JP721088 U JP 721088U JP H01113585 U JPH01113585 U JP H01113585U
- Authority
- JP
- Japan
- Prior art keywords
- output
- voltage
- power supply
- switching power
- stabilized
- 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
- 238000010586 diagram Methods 0.000 description 4
- 238000009499 grossing Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案におけるスイツチング電源の回
路構成を示すブロツク図、第２図は本考案の他の
実施例のオンオン型スイツチング電源の回路構成
を示すブロツク図、第３図は従来のスイツチング
電源の回路構成を示すブロツク図である。
１……スイツチングトランス、２……２次巻線
、３……整流平滑回路、４……出力端子、５……
共通電圧端子、６……２次巻線、７……整流平滑
回路、８……電圧制御回路、９……出力端子、１
０……誤差検出器、１１……過電圧検出器、１２
……信号媒体、１３……ＰＷＭ、駆動回路、１４
……スイツチングトランジスタ、１５……電流検
出抵抗。
Figure 1 is a block diagram showing the circuit configuration of a switching power supply according to the present invention, Figure 2 is a block diagram showing the circuit configuration of an on-on type switching power supply according to another embodiment of the present invention, and Figure 3 is a block diagram showing the circuit configuration of a conventional switching power supply. FIG. 3 is a block diagram showing the circuit configuration. 1... Switching transformer, 2... Secondary winding, 3... Rectifier and smoothing circuit, 4... Output terminal, 5...
Common voltage terminal, 6... Secondary winding, 7... Rectifying and smoothing circuit, 8... Voltage control circuit, 9... Output terminal, 1
0...Error detector, 11...Overvoltage detector, 12
... Signal medium, 13 ... PWM, drive circuit, 14
...Switching transistor, 15...Current detection resistor.
Claims (1)
イツチング電源装置において、第１の出力電圧は
２次側に設けた過電流保護回路を有する電圧制御
回路で安定化され、上記第１の出力電圧と第２の
出力電圧の差電圧が安定化されるように１次側Ｐ
ＷＭ制御回路にフイードバツク制御すると共に、
上記第２の出力電圧に対して過電圧保護回路を有
するスイツチング電源装置。 In a multi-output switching power supply device that obtains at least two or more output voltages, the first output voltage is stabilized by a voltage control circuit having an overcurrent protection circuit provided on the secondary side, and the first output voltage and The primary side P so that the differential voltage between the two output voltages is stabilized.
Along with feedback control to the WM control circuit,
A switching power supply device having an overvoltage protection circuit for the second output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP721088U JPH01113585U (en) | 1988-01-22 | 1988-01-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP721088U JPH01113585U (en) | 1988-01-22 | 1988-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01113585U true JPH01113585U (en) | 1989-07-31 |
Family
ID=31212034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP721088U Pending JPH01113585U (en) | 1988-01-22 | 1988-01-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01113585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04200228A (en) * | 1990-11-29 | 1992-07-21 | Matsushita Electric Ind Co Ltd | Power supply circuit |
-
1988
- 1988-01-22 JP JP721088U patent/JPH01113585U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04200228A (en) * | 1990-11-29 | 1992-07-21 | Matsushita Electric Ind Co Ltd | Power supply circuit |