JPS61104785U - - Google Patents
Info
- Publication number
- JPS61104785U JPS61104785U JP19058084U JP19058084U JPS61104785U JP S61104785 U JPS61104785 U JP S61104785U JP 19058084 U JP19058084 U JP 19058084U JP 19058084 U JP19058084 U JP 19058084U JP S61104785 U JPS61104785 U JP S61104785U
- Authority
- JP
- Japan
- Prior art keywords
- switching
- output
- switching element
- power supply
- winding
- 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 8
- 238000009499 grossing Methods 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案に係るスイツチング電源の電気
回路接続図、第２図は従来のスイツチング電源の
電気回路接続図である。
１……スイツチング素子、３……制御回路、４
……出力整流平滑回路、５……補助電源、Ｔ１…
…変圧器、Ｎ１……入力巻線、Ｎ２……出力巻線
、Ｌ１……チヨークコイル、Ｄ１〜Ｄ３……ダイ
オード、Ｃ１，Ｃ２……コンデンサ。
FIG. 1 is an electric circuit connection diagram of a switching power supply according to the present invention, and FIG. 2 is an electric circuit connection diagram of a conventional switching power supply. 1... Switching element, 3... Control circuit, 4
...Output rectifying and smoothing circuit, 5...Auxiliary power supply, T1 ...
... transformer, N 1 ... input winding, N 2 ... output winding, L 1 ... chiyoke coil, D 1 to D 3 ... diode, C 1 , C 2 ... capacitor.
Claims (1)
与えられる直流入力をスイツチングするスイツチ
ング素子と、このスイツチング素子を制御する制
御回路と、前記変圧器の巻線を含み前記制御回路
に動作電源を供給する補助電源と、変圧器の出力
巻線に取出されたスイツチング出力を整流平滑す
る出力整流平滑回路とを備えるスイツチング電源
において、前記出力整流平滑回路はチヨークイン
プツト整流平滑回路とし、この出力整流平滑回路
を接続した出力巻線を、前記補助電源用巻線とし
て兼用したことを特徴とするスイツチング電源。 (2) 前記補助電源は、コンデンサインプツト整
流平滑回路で構成されることを特徴とする実用新
案登録請求の範囲第１項に記載のスイツチング電
源。 (3) 起動時に前記スイツチング素子にスイツチ
ング動作をさせる起動回路を備え、この起動回路
によつて前記スイツチング素子を起動させたとき
に前記出力巻線に出じる誘起電圧を利用して、前
記補助電源によつて前記制御回路を駆動する電源
を作り、前記制御回路が動作を開始した後は、前
記起動回路に代り、前記制御回路によつて前記ス
イツチング素子を駆動制御することを特徴とする
実用新案登録請求の範囲第１項または第２項に記
載のスイツチング電源。[Claims for Utility Model Registration] (1) A transformer, a switching element that switches DC input applied through an input winding of the transformer, a control circuit that controls this switching element, and a winding of the transformer. and an output rectifying and smoothing circuit that rectifies and smoothes the switching output taken out to the output winding of the transformer, the output rectifying and smoothing circuit having a A switching power supply characterized in that an input rectification and smoothing circuit is used, and an output winding connected to the output rectification and smoothing circuit is also used as the auxiliary power supply winding. (2) The switching power supply according to claim 1, wherein the auxiliary power supply is constituted by a capacitor input rectifying and smoothing circuit. (3) A starting circuit is provided that causes the switching element to perform a switching operation at the time of start-up, and when the switching element is started by the starting circuit, the induced voltage appearing in the output winding is used to cause the auxiliary switching element to perform a switching operation. The practical use is characterized in that a power source for driving the control circuit is generated by a power source, and after the control circuit starts operating, the control circuit drives and controls the switching element instead of the starting circuit. A switching power supply according to claim 1 or 2 of the invention registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19058084U JPS61104785U (en) | 1984-12-15 | 1984-12-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19058084U JPS61104785U (en) | 1984-12-15 | 1984-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61104785U true JPS61104785U (en) | 1986-07-03 |
Family
ID=30748031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19058084U Pending JPS61104785U (en) | 1984-12-15 | 1984-12-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61104785U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52103625A (en) * | 1976-02-27 | 1977-08-31 | Nec Corp | Switching regulator |
| JPS5720823A (en) * | 1980-07-11 | 1982-02-03 | Hitachi Ltd | Switching power supply circuit |
-
1984
- 1984-12-15 JP JP19058084U patent/JPS61104785U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52103625A (en) * | 1976-02-27 | 1977-08-31 | Nec Corp | Switching regulator |
| JPS5720823A (en) * | 1980-07-11 | 1982-02-03 | Hitachi Ltd | Switching power supply circuit |
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