JPH0480288U - - Google Patents
Info
- Publication number
- JPH0480288U JPH0480288U JP12359490U JP12359490U JPH0480288U JP H0480288 U JPH0480288 U JP H0480288U JP 12359490 U JP12359490 U JP 12359490U JP 12359490 U JP12359490 U JP 12359490U JP H0480288 U JPH0480288 U JP H0480288U
- Authority
- JP
- Japan
- Prior art keywords
- input
- capacitor
- transformer
- switching transistor
- circuit
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims 3
- 238000004804 winding Methods 0.000 claims 2
- 230000005284 excitation Effects 0.000 claims 1
- 238000009499 grossing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は、本考案の一実施例のスイツチングレ
ギユレータの基本回路図である。第２図は、従来
のスイツチングレギユレータの基本回路図である
。
１，２……直流入力、３……起動回路、４……
スイツチングトランジスタ、５……スイツチング
トランス。
FIG. 1 is a basic circuit diagram of a switching regulator according to an embodiment of the present invention. FIG. 2 is a basic circuit diagram of a conventional switching regulator. 1, 2...DC input, 3...Start circuit, 4...
Switching transistor, 5...Switching transformer.
Claims (1)
チングトランジスタとの直列回路とが、直流入力
に対して接続され、一方、トランス２次巻線には
整流平滑回路が接続されて、前記トランジスタの
オフ時にトランス励磁エネルギを２次側に供給す
るスイツチレギユレータにおいて、直流入力（＋
）側と入力コンデンサ（＋）側の間にダイオード
を挿入し、かつ、直流入力（＋）側とスイツチン
グトランジスタのベースとの間にコンデンサと抵
抗の直列回路を接続したことを特徴とするスイツ
チングレギユレータの保護回路。 An input capacitor and a series circuit of a transformer primary winding and a switching transistor are connected to the DC input, while a rectifier and smoothing circuit is connected to the transformer secondary winding, so that when the transistor is turned off, In the switch regulator that supplies transformer excitation energy to the secondary side, the DC input (+
) side and the input capacitor (+) side, and a series circuit of a capacitor and a resistor is connected between the DC input (+) side and the base of the switching transistor. Protection circuit for angular regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12359490U JP2534811Y2 (en) | 1990-11-27 | 1990-11-27 | Protection circuit of the switching regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12359490U JP2534811Y2 (en) | 1990-11-27 | 1990-11-27 | Protection circuit of the switching regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0480288U true JPH0480288U (en) | 1992-07-13 |
| JP2534811Y2 JP2534811Y2 (en) | 1997-05-07 |
Family
ID=31871290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12359490U Expired - Lifetime JP2534811Y2 (en) | 1990-11-27 | 1990-11-27 | Protection circuit of the switching regulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2534811Y2 (en) |
-
1990
- 1990-11-27 JP JP12359490U patent/JP2534811Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2534811Y2 (en) | 1997-05-07 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |