JPH0176185U - - Google Patents
Info
- Publication number
- JPH0176185U JPH0176185U JP1987171652U JP17165287U JPH0176185U JP H0176185 U JPH0176185 U JP H0176185U JP 1987171652 U JP1987171652 U JP 1987171652U JP 17165287 U JP17165287 U JP 17165287U JP H0176185 U JPH0176185 U JP H0176185U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- switching power
- extracted
- negative
- supply device
- 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
- 238000004804 winding Methods 0.000 description 2
Description
第１図は本考案によるホワードコンバータ方式
によるスイツチング電源装置の一実施例を示す回
路構成図、第２図は第１図によるスイツチング電
源装置の動作電圧波形図、第３図は従来のスイツ
チング電源装置の回路構成図、第４図は同回路の
電圧波形図、第５図は同回路に使われていたスナ
バ回路の動作説明図である。なお、図中、同一符
号は同一または相当部分を示す。
３はトランス、３ａは一次巻線、３ｂは二次巻
線、４はスイツチング用トランジスタ、９，１７
は出力端子である。
Fig. 1 is a circuit configuration diagram showing an embodiment of the forward converter type switching power supply according to the present invention, Fig. 2 is an operating voltage waveform diagram of the switching power supply according to Fig. 1, and Fig. 3 is a conventional switching power supply. FIG. 4 is a voltage waveform diagram of the circuit, and FIG. 5 is an explanatory diagram of the operation of the snubber circuit used in the circuit. In addition, in the figures, the same reference numerals indicate the same or corresponding parts. 3 is a transformer, 3a is a primary winding, 3b is a secondary winding, 4 is a switching transistor, 9, 17
is the output terminal.
Claims (1)
るフライバツクエネルギーを二次側で負の直流出
力として取り出すようにしたことを特徴とするス
イツチング電源装置。 A switching power supply device characterized in that flyback energy generated on the primary side of a transformer during switching is extracted as a negative DC output on the secondary side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987171652U JPH0176185U (en) | 1987-11-10 | 1987-11-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987171652U JPH0176185U (en) | 1987-11-10 | 1987-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0176185U true JPH0176185U (en) | 1989-05-23 |
Family
ID=31463663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987171652U Pending JPH0176185U (en) | 1987-11-10 | 1987-11-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0176185U (en) |
-
1987
- 1987-11-10 JP JP1987171652U patent/JPH0176185U/ja active Pending