JPH0458088U - - Google Patents
Info
- Publication number
- JPH0458088U JPH0458088U JP9951190U JP9951190U JPH0458088U JP H0458088 U JPH0458088 U JP H0458088U JP 9951190 U JP9951190 U JP 9951190U JP 9951190 U JP9951190 U JP 9951190U JP H0458088 U JPH0458088 U JP H0458088U
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- control circuit
- circuit
- power
- switching
- 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
- 238000004804 winding Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案のスイツチング電源装置の回路
図、第２図は従来のスイツチング電源装置の回路
図である。
１……交流電源、２……整流器、３……コンデ
ンサ、４……トランス、５……スイツチング素子
、６……制御回路、７……遅延回路。
FIG. 1 is a circuit diagram of a switching power supply according to the present invention, and FIG. 2 is a circuit diagram of a conventional switching power supply. 1... AC power supply, 2... Rectifier, 3... Capacitor, 4... Transformer, 5... Switching element, 6... Control circuit, 7... Delay circuit.
Claims (1)
グ素子とが接続され、このスイツチング素子をス
イツチングさせて前記トランスの２次巻線から負
荷に給電するスイツチング電源装置において、前
記直流電源間にその電圧が一定値以上になつた時
に導通し、一定電圧の制御電源を前記スイツチン
グ素子の制御回路に供給するスイツチ回路を設け
るとともに、前記制御回路に外部信号が入力され
、この信号で前記制御回路を起動させる起動端子
を設け、前記スイツチ回路の出力を遅延回路を介
して前記起動端子に入力させるようにしたことを
特徴とするスイツチング電源装置。 In a switching power supply device in which a primary winding of a transformer and a switching element are connected between a DC power source, and the switching element is switched to supply power from the secondary winding of the transformer to a load, the voltage between the DC power sources is A switch circuit is provided, which becomes conductive when the voltage exceeds a certain value, and supplies a constant voltage control power source to the control circuit of the switching element, and an external signal is input to the control circuit, and this signal activates the control circuit. 1. A switching power supply device characterized in that a starting terminal is provided, and the output of the switch circuit is inputted to the starting terminal via a delay circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9951190U JPH0458088U (en) | 1990-09-19 | 1990-09-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9951190U JPH0458088U (en) | 1990-09-19 | 1990-09-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0458088U true JPH0458088U (en) | 1992-05-19 |
Family
ID=31841493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9951190U Pending JPH0458088U (en) | 1990-09-19 | 1990-09-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0458088U (en) |
-
1990
- 1990-09-19 JP JP9951190U patent/JPH0458088U/ja active Pending