JPS63191890U - - Google Patents
Info
- Publication number
- JPS63191890U JPS63191890U JP8254587U JP8254587U JPS63191890U JP S63191890 U JPS63191890 U JP S63191890U JP 8254587 U JP8254587 U JP 8254587U JP 8254587 U JP8254587 U JP 8254587U JP S63191890 U JPS63191890 U JP S63191890U
- Authority
- JP
- Japan
- Prior art keywords
- coupled
- power supply
- output terminal
- winding
- main transformer
- 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 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000001629 suppression Effects 0.000 claims description 2
- 230000005284 excitation Effects 0.000 claims 1
- 238000009499 grossing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案によるノイズ抑制装置の一実施
例を示す斜視図、第２図はスイツチング電源の電
気回路図、第３図は従来装置の斜視図である。
１……主トランス、２……１次巻線、２ａ，２
ｂ，２ｃ，２ｄ……リード線、３……コモンモー
ドチヨークコイル、３ａ，３ｂ，３ｃ，３ｄ……
リード線、４……開閉素子、５……直流電源、６
……２次巻線、１１，１２……出力端子、１３…
…出力検出増幅回路、１４……アイソレータ、１
５……時比率制御ＩＣ、１６……プリント基板、
１７……スルーホール、１８……プリント配線、
１９……トルイダル状磁心。
FIG. 1 is a perspective view showing an embodiment of a noise suppression device according to the present invention, FIG. 2 is an electric circuit diagram of a switching power supply, and FIG. 3 is a perspective view of a conventional device. 1... Main transformer, 2... Primary winding, 2a, 2
b, 2c, 2d...Lead wire, 3...Common mode chain coil, 3a, 3b, 3c, 3d...
Lead wire, 4...Switching element, 5...DC power supply, 6
...Secondary winding, 11, 12...Output terminal, 13...
...Output detection amplifier circuit, 14...Isolator, 1
5... Time ratio control IC, 16... Printed circuit board,
17...Through hole, 18...Printed wiring,
19...Truidal magnetic core.
Claims (1)
に結合し、前記主トランスの２次巻線に整流平滑
回路を介して出力端子を結合し、この出力端子に
出力検出増幅回路、アイソレータを介して時比率
制御ＩＣを結合し、このＩＣにより前記開閉素子
の開閉を制御するようにしたスイツチング電源に
おいて、前記主トランスの１次巻線の両端部の２
本のリード線を、トロイダル状磁心に、励磁方向
が互いに逆になるように同一回数だけ巻回してコ
モンモードチヨークコイルを構成したことを特徴
とするスイツチング電源のノイズ抑制装置。 The primary winding and switching element of the main transformer are coupled to a DC power source, the output terminal is coupled to the secondary winding of the main transformer via a rectifying and smoothing circuit, and an output detection amplifier circuit and an isolator are connected to this output terminal. In the switching power supply, a duty ratio control IC is coupled through the switch, and this IC controls the opening/closing of the switching element.
A noise suppression device for a switching power supply, characterized in that a common mode choke coil is constructed by winding a book lead wire around a toroidal magnetic core the same number of times so that the directions of excitation are opposite to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8254587U JPS63191890U (en) | 1987-05-29 | 1987-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8254587U JPS63191890U (en) | 1987-05-29 | 1987-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63191890U true JPS63191890U (en) | 1988-12-09 |
Family
ID=30935304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8254587U Pending JPS63191890U (en) | 1987-05-29 | 1987-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63191890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02197268A (en) * | 1989-01-24 | 1990-08-03 | Fanuc Ltd | Inverter device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5698369A (en) * | 1980-01-09 | 1981-08-07 | Mitsubishi Electric Corp | Dc/dc converter |
-
1987
- 1987-05-29 JP JP8254587U patent/JPS63191890U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5698369A (en) * | 1980-01-09 | 1981-08-07 | Mitsubishi Electric Corp | Dc/dc converter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02197268A (en) * | 1989-01-24 | 1990-08-03 | Fanuc Ltd | Inverter device |
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