JPH0249330U - - Google Patents
Info
- Publication number
- JPH0249330U JPH0249330U JP12559488U JP12559488U JPH0249330U JP H0249330 U JPH0249330 U JP H0249330U JP 12559488 U JP12559488 U JP 12559488U JP 12559488 U JP12559488 U JP 12559488U JP H0249330 U JPH0249330 U JP H0249330U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- rectifier
- protection circuit
- scr
- switching device
- 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
Landscapes
- Protection Of Static Devices (AREA)
- Dc-Dc Converters (AREA)
Description
第１図は、本考案の実施例を示す結線図、第２
図は従来の結線図である。
１……半導体スイツチング素子、２……コント
ロール回路、３……保護回路、４……変換トラン
ス、５……整流回路、６，１２……コンデンサ、
７……整流出力回路、８……電源スイツチ、９…
…変換トランスの補助巻線、１０……ＳＣＲ、１
１，１３……ダイオード、１４，１５……抵抗、
１６……保護回路の駆動部。
Figure 1 is a wiring diagram showing an embodiment of the present invention, Figure 2 is a wiring diagram showing an embodiment of the present invention.
The figure is a conventional wiring diagram. 1... Semiconductor switching element, 2... Control circuit, 3... Protection circuit, 4... Conversion transformer, 5... Rectifier circuit, 6, 12... Capacitor,
7... Rectifier output circuit, 8... Power switch, 9...
...Auxiliary winding of conversion transformer, 10...SCR, 1
1, 13... Diode, 14, 15... Resistor,
16... Drive section of protection circuit.
Claims (1)
導体スイツチング素子１と、前記半導体スイツチ
ング素子１のコレクタ側に接続された変換トラン
ス４と、前記変換トランス４及び半導体スイツチ
ング素子１のエミツタ側に出力端子を接続し、一
次側交流電源に入力端子を接続した整流回路５と
、前記整流回路５の出力端子に並列接続されたコ
ンデンサ６と、一次側電源スイツチ８と、さらに
前記電源トランス４の二次側に接続された整流出
力回路７とから構成されたスイツチング・レギユ
レータにおいて、 前記変換トランス４の一次側に設けた補助巻線
９と、ダイオード１３及び抵抗１４を介して前記
補助巻線９に接続されたゲート回路を備え、ダイ
オード１１を介して一次側電源回路に接続された
ＳＣＲ１０と、前記ＳＣＲ１０のアノード側と前
記保護回路３の間に挿入されたコンデンサ１２と
、さらに前記ＳＣＲ１０のカソード側と前記保護
回路３の間に挿入された抵抗１５とから構成され
た保護回路の駆動部１６を設けたことを特徴とす
るスイツチング・レギユレータの保護回路。[Claims for Utility Model Registration] A semiconductor switching device 1 including a control circuit 2 and a protection circuit 3, a conversion transformer 4 connected to the collector side of the semiconductor switching device 1, and the conversion transformer 4 and the semiconductor switching device 1. A rectifier circuit 5 having an output terminal connected to the emitter side of the rectifier circuit 5 and an input terminal connected to the primary side AC power supply, a capacitor 6 connected in parallel to the output terminal of the rectifier circuit 5, a primary side power switch 8, and the In a switching regulator composed of a rectifier output circuit 7 connected to the secondary side of the power transformer 4, the auxiliary winding 9 provided on the primary side of the conversion transformer 4 is connected to the rectifier output circuit 7 through a diode 13 and a resistor 14. an SCR 10 including a gate circuit connected to the auxiliary winding 9 and connected to the primary power supply circuit via a diode 11; a capacitor 12 inserted between the anode side of the SCR 10 and the protection circuit 3; A protection circuit for a switching regulator, characterized in that a drive section 16 of the protection circuit is provided, which is constituted by a resistor 15 inserted between the cathode side of the SCR 10 and the protection circuit 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12559488U JPH0615474Y2 (en) | 1988-09-26 | 1988-09-26 | Switching regulator protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12559488U JPH0615474Y2 (en) | 1988-09-26 | 1988-09-26 | Switching regulator protection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0249330U true JPH0249330U (en) | 1990-04-05 |
| JPH0615474Y2 JPH0615474Y2 (en) | 1994-04-20 |
Family
ID=31376344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12559488U Expired - Lifetime JPH0615474Y2 (en) | 1988-09-26 | 1988-09-26 | Switching regulator protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0615474Y2 (en) |
-
1988
- 1988-09-26 JP JP12559488U patent/JPH0615474Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0615474Y2 (en) | 1994-04-20 |