JPS622330U - - Google Patents
Info
- Publication number
- JPS622330U JPS622330U JP9231185U JP9231185U JPS622330U JP S622330 U JPS622330 U JP S622330U JP 9231185 U JP9231185 U JP 9231185U JP 9231185 U JP9231185 U JP 9231185U JP S622330 U JPS622330 U JP S622330U
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- conductive
- converter
- power supply
- transformer
- 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
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims 2
- 230000004913 activation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000005669 field effect Effects 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図はこの考案の一実施例を示すコンバータ
型直流電源の保護回路図、第２図はこの考案の他
の実施例を示す回路図、第３図ａ，ｂは従来の保
護回路を示す回路図である。
図中、ＦＥＴは電界効果トランジスタ、ＳＣＲ
はシリコン制御整流器、Ｄｚはツエナーダイオー
ド、Ｄｌは起動用のダイオード、１０はパルス発
生回路を示す。
Fig. 1 is a protection circuit diagram of a converter-type DC power supply showing one embodiment of this invention, Fig. 2 is a circuit diagram showing another embodiment of this invention, and Figs. 3 a and b show conventional protection circuits. It is a circuit diagram. In the figure, FET is a field effect transistor, SCR
is a silicon controlled rectifier, Dz is a Zener diode, Dl is a starting diode, and 10 is a pulse generation circuit.
Claims (1)
グ素子と、前記トランスの二次側に接続されてい
る整流回路と、前記スイツチング素子を開閉制御
するためのパルス発生器からなるコンバータ型直
流電源において、前記整流出力が第１の値を越え
たとき導通するシリコン制御整流器と、前記整流
出力が第２の値より低下したとき不導通になる半
導体素子を設け、前記シリコン制御整流器が導通
することによつて前記スイツチング素子の起動信
号を阻止し、前記半導体素子が不導通になつたと
きは前記パルス発生器の出力が前記スイツチング
素子に供給されないように構成されていることを
特徴とするコンバータ型直流電源の保護回路。 A converter-type DC power supply comprising a switching element connected to the primary side of the transformer, a rectifier circuit connected to the secondary side of the transformer, and a pulse generator for controlling opening/closing of the switching element. a silicon-controlled rectifier that becomes conductive when the output exceeds a first value; and a semiconductor element that becomes non-conductive when the rectified output falls below a second value; Protection of a converter-type DC power supply, characterized in that it is configured to block an activation signal of a switching element so that when the semiconductor element becomes non-conductive, the output of the pulse generator is not supplied to the switching element. circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9231185U JPS622330U (en) | 1985-06-20 | 1985-06-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9231185U JPS622330U (en) | 1985-06-20 | 1985-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS622330U true JPS622330U (en) | 1987-01-08 |
Family
ID=30648997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9231185U Pending JPS622330U (en) | 1985-06-20 | 1985-06-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS622330U (en) |
-
1985
- 1985-06-20 JP JP9231185U patent/JPS622330U/ja active Pending