JPS58103544U - hold down circuit - Google Patents
hold down circuitInfo
- Publication number
- JPS58103544U JPS58103544U JP85282U JP85282U JPS58103544U JP S58103544 U JPS58103544 U JP S58103544U JP 85282 U JP85282 U JP 85282U JP 85282 U JP85282 U JP 85282U JP S58103544 U JPS58103544 U JP S58103544U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- down circuit
- hold down
- input terminal
- power supply
- 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
- Details Of Television Scanning (AREA)
- Emergency Protection Circuit Devices (AREA)
- Power Conversion In General (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のホールドダウン回路の一例を示す回路図
であり、第２図が本考案によるホールドダウン回路の一
実施例を示す回路図である。
１：電源入力端子、４：平滑コンデンサ、１１゜１２：
ホールドダウン用スイッチングトランジスタ、１６：放
電用スイッチングトランジスタ。FIG. 1 is a circuit diagram showing an example of a conventional hold-down circuit, and FIG. 2 is a circuit diagram showing an embodiment of the hold-down circuit according to the present invention. 1: Power input terminal, 4: Smoothing capacitor, 11゜12:
Hold-down switching transistor, 16: Discharge switching transistor.
Claims (1)
設け、このスイッチング回路により入力端に平滑用コン
デンサが接続された負荷回路への電源供給を遮断するよ
うにした回路に於いて、前記スイッチング回路の動作時
に導通するスイッチング素子を前記入力端に接続し、こ
のスイッチング素子により前記コンデンサの放電ループ
を形成するようにしたことを特徴とするホールドダウン
回路。In a circuit that is provided with a switching circuit that operates by detecting a rise in power supply voltage, and that cuts off the power supply to a load circuit whose input terminal is connected to a smoothing capacitor, the switching circuit A hold-down circuit characterized in that a switching element that is conductive during operation is connected to the input terminal, and the switching element forms a discharge loop for the capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP85282U JPS58103544U (en) | 1982-01-06 | 1982-01-06 | hold down circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP85282U JPS58103544U (en) | 1982-01-06 | 1982-01-06 | hold down circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58103544U true JPS58103544U (en) | 1983-07-14 |
| JPH0214289Y2 JPH0214289Y2 (en) | 1990-04-18 |
Family
ID=30013905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP85282U Granted JPS58103544U (en) | 1982-01-06 | 1982-01-06 | hold down circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58103544U (en) |
-
1982
- 1982-01-06 JP JP85282U patent/JPS58103544U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0214289Y2 (en) | 1990-04-18 |
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