JPS6416187U - - Google Patents
Info
- Publication number
- JPS6416187U JPS6416187U JP11097987U JP11097987U JPS6416187U JP S6416187 U JPS6416187 U JP S6416187U JP 11097987 U JP11097987 U JP 11097987U JP 11097987 U JP11097987 U JP 11097987U JP S6416187 U JPS6416187 U JP S6416187U
- Authority
- JP
- Japan
- Prior art keywords
- switching transistor
- switching
- circuit
- output
- transistor
- 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 2
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案のスイツチング電源回路の一実
施例を示す図、第２図は従来のスイツチング電源
回路を示す図である。
２……コントロール回路、３……平滑回路、６
……定電圧回路、Ｑ……スイツチングトランジス
タ、Ｓ１……モード切換えスイツチ。
FIG. 1 is a diagram showing an embodiment of the switching power supply circuit of the present invention, and FIG. 2 is a diagram showing a conventional switching power supply circuit. 2...Control circuit, 3...Smoothing circuit, 6
... Constant voltage circuit, Q ... Switching transistor, S 1 ... Mode changeover switch.
Claims (1)
ロール部によつてスイツチング制御されて前記定
電圧回路の出力電圧を所定のデユーテイ比で出力
するスイツチングトランジスタと、該スイツチン
グトランジスタの出力を平滑する平滑回路と、前
記スイツチングトランジスタを前記コントロール
部で制御する第１モードと、前記スイツチングト
ランジスタをオン状態に維持し続ける第２モード
に切り換える切り換えスイツチとを備えてなるス
イツチング電源回路。 a constant voltage circuit that stabilizes the input voltage; a switching transistor that is controlled by a control section to output the output voltage of the constant voltage circuit at a predetermined duty ratio; and a smoothing transistor that smooths the output of the switching transistor. A switching power supply circuit comprising: a circuit; and a changeover switch for switching between a first mode in which the switching transistor is controlled by the control section and a second mode in which the switching transistor is maintained in an on state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11097987U JPS6416187U (en) | 1987-07-20 | 1987-07-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11097987U JPS6416187U (en) | 1987-07-20 | 1987-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6416187U true JPS6416187U (en) | 1989-01-26 |
Family
ID=31348629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11097987U Pending JPS6416187U (en) | 1987-07-20 | 1987-07-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6416187U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015177619A (en) * | 2014-03-14 | 2015-10-05 | 株式会社メガチップス | Step-down converter circuit and method for testing the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5711093B2 (en) * | 1974-06-28 | 1982-03-02 |
-
1987
- 1987-07-20 JP JP11097987U patent/JPS6416187U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5711093B2 (en) * | 1974-06-28 | 1982-03-02 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015177619A (en) * | 2014-03-14 | 2015-10-05 | 株式会社メガチップス | Step-down converter circuit and method for testing the same |