JPS6355738U - - Google Patents
Info
- Publication number
- JPS6355738U JPS6355738U JP14863286U JP14863286U JPS6355738U JP S6355738 U JPS6355738 U JP S6355738U JP 14863286 U JP14863286 U JP 14863286U JP 14863286 U JP14863286 U JP 14863286U JP S6355738 U JPS6355738 U JP S6355738U
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- power supply
- control element
- voltage
- semiconductor control
- 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
- 239000003990 capacitor Substances 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 claims 4
- 238000004804 winding Methods 0.000 claims 3
- 238000009499 grossing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Protection Of Static Devices (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は本考案の他の実施例を示す回路図、第３図は
従来の電源回路の一例を示す回路図である。
２…ヒユーズ、３…電源トランス、４，５，７
，８…ダイオード、６，９…コンデンサ、１２，
１５，２２…トランジスタ、１６…制御電源、２
１…ツエナーダイオード。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a circuit diagram showing another embodiment of the present invention, and FIG. 3 is a circuit diagram showing an example of a conventional power supply circuit. 2... Fuse, 3... Power transformer, 4, 5, 7
, 8...diode, 6, 9... capacitor, 12,
15, 22...Transistor, 16...Control power supply, 2
1...Zener diode.
Claims (1)
流電源に接続し、前記電源トランスの二次巻線の
両端に誘起する交流電圧を第１のダイオード回路
で全波整流し、該整流電圧を第１のコンデンサで
平滑するとともに、前記電源トランスの二次巻線
の中点と両端との間に誘起する交流電圧を第２の
ダイオード回路で全波整流し、該整流電圧を第２
のコンデンサで平滑するように構成された電源回
路において、 前記第１のコンデンサに並列接続された第１の
半導体制御素子と、 前記第１の半導体制御素子にオン制御電流を供
給する制御電源と、 前記第２のコンデンサの端子電圧に応じて、前
記制御電源から第１の半導体制御素子へのオン電
流の供給を制御する第２の半導体制御素子とを備
えたことを特徴とする電源保護回路。[Claims for Utility Model Registration] The primary winding of a power transformer is connected to an AC power source via a fuse, and the AC voltage induced across the secondary winding of the power transformer is full-wave rectified by a first diode circuit. The rectified voltage is smoothed by a first capacitor, and the AC voltage induced between the middle point and both ends of the secondary winding of the power transformer is full-wave rectified by a second diode circuit. Voltage 2nd
A power supply circuit configured to perform smoothing with a capacitor, comprising: a first semiconductor control element connected in parallel to the first capacitor; a control power supply supplying an on-control current to the first semiconductor control element; A power supply protection circuit comprising: a second semiconductor control element that controls supply of on-current from the control power supply to the first semiconductor control element in accordance with a terminal voltage of the second capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14863286U JPS6355738U (en) | 1986-09-30 | 1986-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14863286U JPS6355738U (en) | 1986-09-30 | 1986-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6355738U true JPS6355738U (en) | 1988-04-14 |
Family
ID=31063089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14863286U Pending JPS6355738U (en) | 1986-09-30 | 1986-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6355738U (en) |
-
1986
- 1986-09-30 JP JP14863286U patent/JPS6355738U/ja active Pending