JPH0260483U - - Google Patents
Info
- Publication number
- JPH0260483U JPH0260483U JP13940688U JP13940688U JPH0260483U JP H0260483 U JPH0260483 U JP H0260483U JP 13940688 U JP13940688 U JP 13940688U JP 13940688 U JP13940688 U JP 13940688U JP H0260483 U JPH0260483 U JP H0260483U
- Authority
- JP
- Japan
- Prior art keywords
- overcurrent
- oscillation
- circuit
- detection circuit
- power supply
- 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
- 230000010355 oscillation Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の電源回路を示す回路図、第２
図は電源回路の従来例を示す回路図である。
１……ブリツジ整流回路、３……発振トランス
、５……スイツチングトランジスタ、６……過電
流検出抵抗、７……制御回路、１７，１８……ツ
エナーダイオード。
Figure 1 is a circuit diagram showing the power supply circuit of the present invention, Figure 2 is a circuit diagram showing the power supply circuit of the present invention.
The figure is a circuit diagram showing a conventional example of a power supply circuit. DESCRIPTION OF SYMBOLS 1... Bridge rectifier circuit, 3... Oscillation transformer, 5... Switching transistor, 6... Overcurrent detection resistor, 7... Control circuit, 17, 18... Zener diode.
Claims (1)
、二次側より複数の電圧出力を取り出すよう構成
したスイツチング方式の電源回路に於いて、発振
トランスの一次側に設けた過電流検出回路と、該
回路による過電流の検出で発振動作を停止させよ
う制御する制御回路と、発振トランスの二次側の
出力端子の内短絡時の過電流が前記過電流検出回
路に検出されるよう設定された検出用の出力端子
と他の出力端子間に接続したツエナーダイオード
で構成したことを特徴とする電源回路。 In a switching power supply circuit configured to take out a plurality of voltage outputs from the secondary side by the oscillation operation of the primary side of one oscillation transformer, an overcurrent detection circuit provided on the primary side of the oscillation transformer, and the circuit a control circuit that controls the oscillation operation to be stopped by detecting an overcurrent, and a detection circuit that is set so that the overcurrent detection circuit detects an overcurrent when the output terminals on the secondary side of the oscillation transformer are short-circuited. A power supply circuit characterized by comprising a Zener diode connected between an output terminal and another output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13940688U JPH0260483U (en) | 1988-10-26 | 1988-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13940688U JPH0260483U (en) | 1988-10-26 | 1988-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0260483U true JPH0260483U (en) | 1990-05-02 |
Family
ID=31402635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13940688U Pending JPH0260483U (en) | 1988-10-26 | 1988-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0260483U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61189169A (en) * | 1985-02-08 | 1986-08-22 | エスジェーエス―トムソン ミクロエレクトロニクス ソシエテ アノニム | Control circuit for gradual start type chop power source |
-
1988
- 1988-10-26 JP JP13940688U patent/JPH0260483U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61189169A (en) * | 1985-02-08 | 1986-08-22 | エスジェーエス―トムソン ミクロエレクトロニクス ソシエテ アノニム | Control circuit for gradual start type chop power source |