JPS6077289U - Switching type DC power supply - Google Patents
Switching type DC power supplyInfo
- Publication number
- JPS6077289U JPS6077289U JP16978483U JP16978483U JPS6077289U JP S6077289 U JPS6077289 U JP S6077289U JP 16978483 U JP16978483 U JP 16978483U JP 16978483 U JP16978483 U JP 16978483U JP S6077289 U JPS6077289 U JP S6077289U
- Authority
- JP
- Japan
- Prior art keywords
- load
- power supply
- switching type
- detection resistor
- current detection
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のスイッチング方式直流電源、第２図は本
考案の一実施例を示す回路図である。
６・・・整流フィルタ回路、６４・・・出力平滑用コン
デンサ、７・・・負荷、８・・・定電圧制御回路、９・
・・パ −ルス幅制御回路、１０・・・電流検出抵抗、
１１・・・電流制限回路。FIG. 1 is a circuit diagram showing a conventional switching type DC power supply, and FIG. 2 is a circuit diagram showing an embodiment of the present invention. 6... Rectifier filter circuit, 64... Output smoothing capacitor, 7... Load, 8... Constant voltage control circuit, 9...
...Pulse width control circuit, 10...Current detection resistor,
11... Current limiting circuit.
Claims (1)
とスイッチング素子の直列回路に与え、該トランジスタ
の出力を整流フィルタ回路で整流平滑して負荷に直流電
力を供給し、負荷電圧を一定に制御する制御信号に応じ
て該スイッチング素子のオン・オフ比を制御する制御回
路が負荷電流を電流検出抵抗で検出して該負荷電流が一
定値を越えようとするときに該オン・オフ比を制限する
過電流制限手段を有するスイッチング方式直流電源にお
いて、上記電流検出抵抗を上記整流フィルタ回路の出力
平滑用コンデンサの前段に位置させ、該出力平滑用コン
デンサと負荷との接続に該電流検出抵抗が介装されない
構成にしたことを特徴とするスイッチング方式直流電源
。A DC input that has been rectified and smoothed from AC is applied to a series circuit of a switching transformer and a switching element, and the output of the transistor is rectified and smoothed by a rectification filter circuit to supply DC power to the load, which produces a control signal that controls the load voltage at a constant level. A control circuit that controls the on/off ratio of the switching element accordingly detects the load current with a current detection resistor, and limits the on/off ratio when the load current is about to exceed a certain value. In the switching type DC power supply having the means, the current detection resistor is located before the output smoothing capacitor of the rectifying filter circuit, and the current detection resistor is not interposed in the connection between the output smoothing capacitor and the load. A switching type DC power supply characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16978483U JPS6077289U (en) | 1983-11-01 | 1983-11-01 | Switching type DC power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16978483U JPS6077289U (en) | 1983-11-01 | 1983-11-01 | Switching type DC power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6077289U true JPS6077289U (en) | 1985-05-30 |
Family
ID=30370831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16978483U Pending JPS6077289U (en) | 1983-11-01 | 1983-11-01 | Switching type DC power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6077289U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57193819A (en) * | 1981-04-28 | 1982-11-29 | Toko Inc | Switching regulator |
-
1983
- 1983-11-01 JP JP16978483U patent/JPS6077289U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57193819A (en) * | 1981-04-28 | 1982-11-29 | Toko Inc | Switching regulator |
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