JPS642587U - - Google Patents
Info
- Publication number
- JPS642587U JPS642587U JP1987096586U JP9658687U JPS642587U JP S642587 U JPS642587 U JP S642587U JP 1987096586 U JP1987096586 U JP 1987096586U JP 9658687 U JP9658687 U JP 9658687U JP S642587 U JPS642587 U JP S642587U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- direct current
- alternating current
- transformer
- rectifying
- 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
- 238000009499 grossing Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Rectifiers (AREA)
- Power Conversion In General (AREA)
Description
第１図は本考案の電源装置の一実施例を示した
ブロツク図、第２図は従来の電源装置の一例を示
したブロツク図である。
１１……ＡＣスイツチ、１２……サーミスタ、
１３……整流ダイオード、１４……平滑コンデン
サ、１５，２０，２１……トランジスタ、１６…
…トランス、１９……ツエナーダイオード。
FIG. 1 is a block diagram showing an embodiment of the power supply device of the present invention, and FIG. 2 is a block diagram showing an example of a conventional power supply device. 11...AC switch, 12...thermistor,
13... Rectifier diode, 14... Smoothing capacitor, 15, 20, 21... Transistor, 16...
...Transformer, 19...Zener diode.
Claims (1)
を介して平滑整流回路に入力して直流電流に変換
し、この直流電流をスイツチング素子にてスイツ
チングして交番電流としてトランスの１次側に流
すことにより、このトランスの２次側に所定の交
番電圧を誘起させる電源回路において、前記整流
平滑回路の出力電圧を検出する電圧検出手段と、
前記整流平滑回路の出力電圧が所定値以下となつ
た場合に前記直流電流をスイツチングするスイツ
チング素子の動作を停止させる制御手段とを具備
したことを特徴とする電源装置。 By inputting an alternating current supplied from an alternating current power supply into a smoothing rectifier circuit via a thermistor and converting it into a direct current, this direct current is switched by a switching element to flow as an alternating current to the primary side of the transformer. In a power supply circuit that induces a predetermined alternating voltage on the secondary side of the transformer, voltage detection means for detecting the output voltage of the rectifying and smoothing circuit;
A power supply device comprising: control means for stopping the operation of the switching element that switches the direct current when the output voltage of the rectifying and smoothing circuit becomes equal to or lower than a predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987096586U JPS642587U (en) | 1987-06-25 | 1987-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987096586U JPS642587U (en) | 1987-06-25 | 1987-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS642587U true JPS642587U (en) | 1989-01-09 |
Family
ID=31321578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987096586U Pending JPS642587U (en) | 1987-06-25 | 1987-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS642587U (en) |
-
1987
- 1987-06-25 JP JP1987096586U patent/JPS642587U/ja active Pending