JPH0164986U - - Google Patents
Info
- Publication number
- JPH0164986U JPH0164986U JP1987158755U JP15875587U JPH0164986U JP H0164986 U JPH0164986 U JP H0164986U JP 1987158755 U JP1987158755 U JP 1987158755U JP 15875587 U JP15875587 U JP 15875587U JP H0164986 U JPH0164986 U JP H0164986U
- Authority
- JP
- Japan
- Prior art keywords
- winding
- voltage
- switching
- primary winding
- common mode
- 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 description 9
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案による一実施例を示す回路構成
図、第２図は一実施例の動作を説明するための電
圧波形図、第３図は従来例を示す回路構成図、第
４図は従来例の動作を説明するための電圧波形図
である。
１……スイツチング電源トランス、２……１次
巻線、３……２次巻線、４……スイツチング・ト
ランジスタ、９……ノイズ補償巻線。
Fig. 1 is a circuit diagram showing an embodiment of the present invention, Fig. 2 is a voltage waveform diagram for explaining the operation of the embodiment, Fig. 3 is a circuit diagram showing a conventional example, and Fig. 4 is a circuit diagram showing an embodiment of the present invention. FIG. 3 is a voltage waveform diagram for explaining the operation of a conventional example. 1... Switching power transformer, 2... Primary winding, 3... Secondary winding, 4... Switching transistor, 9... Noise compensation winding.
Claims (1)
るスイツチング電源トランスと、該トランスの１
次巻線の一端にコレクタが接続されエミツタが入
力電源の一端に接続されたスイツチング・トラン
ジスタとを備え、上記１次巻線を流れる電流をス
イツチング・トランジスタで制御して２次巻線に
接続された負荷に電力を供給するようにしたスイ
ツチング・レギユレータにおいて、 上記トランスの２次側にコモン・モード・ノイ
ズ電圧と同レベルで逆極性の電圧を発生するノイ
ズ補償巻線を備え、 上記ノイズ補償巻線により発生された電圧によ
りコモン・モード・ノイズ電圧を相殺するように
したことを特徴とするスイツチング・レギユレー
タ。[Claims for Utility Model Registration] A switching power supply transformer having a magnetically coupled primary winding and a secondary winding;
A switching transistor has a collector connected to one end of the primary winding and an emitter connected to one end of the input power supply, and the current flowing through the primary winding is controlled by the switching transistor and connected to the secondary winding. In a switching regulator designed to supply power to a load, the secondary side of the transformer is equipped with a noise compensation winding that generates a voltage of the same level and opposite polarity as the common mode noise voltage. A switching regulator characterized in that a common mode noise voltage is canceled out by a voltage generated by a line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987158755U JPH0164986U (en) | 1987-10-19 | 1987-10-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987158755U JPH0164986U (en) | 1987-10-19 | 1987-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0164986U true JPH0164986U (en) | 1989-04-26 |
Family
ID=31439369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987158755U Pending JPH0164986U (en) | 1987-10-19 | 1987-10-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0164986U (en) |
-
1987
- 1987-10-19 JP JP1987158755U patent/JPH0164986U/ja active Pending