JPS61189786U - - Google Patents
Info
- Publication number
- JPS61189786U JPS61189786U JP7392585U JP7392585U JPS61189786U JP S61189786 U JPS61189786 U JP S61189786U JP 7392585 U JP7392585 U JP 7392585U JP 7392585 U JP7392585 U JP 7392585U JP S61189786 U JPS61189786 U JP S61189786U
- Authority
- JP
- Japan
- Prior art keywords
- control
- voltage value
- filter
- coil
- control pulse
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Continuous-Control Power Sources That Use Transistors (AREA)
- Dc-Dc Converters (AREA)
Description
第１図は本考案による過電流検出保護装置を具
備したスイツチングレギユレータ式電源回路の一
実施例の回路図、第２図は従来のスイツチングレ
ギユレータ式電源回路の回路図である。
２……スイツチング制御回路、３……フイルタ
ー回路、５……制御パルス発生回路、６……コン
パレータ、８……過電流検出回路、Ｑ１……スイ
ツチングトランジスタ、Ｌ１，Ｌ２……コイル。
Figure 1 is a circuit diagram of an embodiment of a switching regulator type power supply circuit equipped with an overcurrent detection and protection device according to the present invention, and Figure 2 is a circuit diagram of a conventional switching regulator type power supply circuit. . 2...Switching control circuit, 3...Filter circuit, 5...Control pulse generation circuit, 6...Comparator, 8...Overcurrent detection circuit, Q1 ...Switching transistor, L1 , L2 ...Coil .
Claims (1)
イツチング制御素子と、前記制御素子の出力側に
接続されたコイルを含むフイルターと、前記フイ
ルターを経て得られる直流出力電圧値を検知して
その電圧値に応じた前記制御パルスを生成する制
御パルス発生器とからなるスイツチングレギユレ
ータ式電源回路において、前記フイルターを構成
しているコイルの両端に生じる電位差をコンパレ
ータにて比較検出し、前記コイルに所定値を越え
る過大電流が流れたとき前記コンパレータの出力
に基いて前記制御パルス発生器の動作を停止せし
めるようにしたことを特徴とする過電流検出保護
装置。 A switching control element that is subjected to switching control based on a control pulse, a filter including a coil connected to the output side of the control element, and a DC output voltage value obtained through the filter is detected and a DC output voltage value is detected according to the voltage value. In a switching regulator type power supply circuit comprising a control pulse generator that generates the control pulses, a comparator compares and detects the potential difference generated across the coil constituting the filter, and applies a predetermined value to the coil. An overcurrent detection and protection device, characterized in that the operation of the control pulse generator is stopped based on the output of the comparator when an excessive current exceeding the limit flows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7392585U JPS61189786U (en) | 1985-05-17 | 1985-05-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7392585U JPS61189786U (en) | 1985-05-17 | 1985-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61189786U true JPS61189786U (en) | 1986-11-26 |
Family
ID=30613745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7392585U Pending JPS61189786U (en) | 1985-05-17 | 1985-05-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61189786U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6018681B2 (en) * | 1975-06-04 | 1985-05-11 | 三菱化学株式会社 | Manufacturing method of powdered rubber |
-
1985
- 1985-05-17 JP JP7392585U patent/JPS61189786U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6018681B2 (en) * | 1975-06-04 | 1985-05-11 | 三菱化学株式会社 | Manufacturing method of powdered rubber |