JPS63164381U - - Google Patents
Info
- Publication number
- JPS63164381U JPS63164381U JP5506487U JP5506487U JPS63164381U JP S63164381 U JPS63164381 U JP S63164381U JP 5506487 U JP5506487 U JP 5506487U JP 5506487 U JP5506487 U JP 5506487U JP S63164381 U JPS63164381 U JP S63164381U
- Authority
- JP
- Japan
- Prior art keywords
- switching
- output
- oscillation frequency
- switch
- voltage
- 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 7
- 238000009499 grossing Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000013256 coordination polymer Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案のスイツチングレギユレータの
１実施例の電気回路図、第２図は従来のスイツチ
ングレギユレータの電気回路図である。
Ｔｉ……直流入力端子、Ｔｏ……出力端子、Ｑ
１……スイツチング素子、ＳＬ……平滑用インダ
クタ、ＯＳＣ……発振回路、ＣＰ……比較器、Ｃ
Ｄ……出力電流検出回路、Ｑ３……スイツチ素子
、Ｃ２，Ｒ４，Ｒ５……発振周波数決定用素子。
FIG. 1 is an electrical circuit diagram of one embodiment of the switching regulator of the present invention, and FIG. 2 is an electrical circuit diagram of a conventional switching regulator. Ti...DC input terminal, To...output terminal, Q
1... Switching element, SL... Smoothing inductor, OSC... Oscillation circuit, CP... Comparator, C
D... Output current detection circuit, Q3... Switch element, C2, R4, R5... Element for determining oscillation frequency.
Claims (1)
ら出力される３角波等の比較用基準電圧と比較し
、その比較出力によつて直流入力端子と出力端子
との間に接続されたスイツチング素子をオン・オ
フ制御し、このスイツチング素子のオン時に平滑
用インダクタに蓄積した磁気エネルギをオフ時に
放出するようになつたスイツチングレギユレータ
において、前記発振器に、発振周波数決定用素子
を切換えるスイツチ素子を設けるとともに、この
スイツチ素子を、出力電流検出回路の検出信号に
より出力電流が小さい時に発振周波数が高く且つ
出力電流が大きい時に発振周波数が低くなるよう
切換えるよう構成したことを特徴とするスイツチ
ングレギユレータ。 The difference voltage between the output voltage and the reference voltage is compared with a comparison reference voltage such as a triangular wave output from the oscillation circuit, and the comparison output is used to control the switching connected between the DC input terminal and the output terminal. In a switching regulator that controls on/off of an element and releases magnetic energy accumulated in a smoothing inductor when the switching element is on and off when the switching element is off, the oscillator is provided with a switch for switching an oscillation frequency determining element. A switching element is provided, and the switch element is configured to switch the oscillation frequency so that when the output current is small, the oscillation frequency is high and when the output current is large, the oscillation frequency is low. Regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5506487U JPS63164381U (en) | 1987-04-10 | 1987-04-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5506487U JPS63164381U (en) | 1987-04-10 | 1987-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63164381U true JPS63164381U (en) | 1988-10-26 |
Family
ID=30882630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5506487U Pending JPS63164381U (en) | 1987-04-10 | 1987-04-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63164381U (en) |
-
1987
- 1987-04-10 JP JP5506487U patent/JPS63164381U/ja active Pending