JPS59135475U - Power detection circuit - Google Patents
Power detection circuitInfo
- Publication number
- JPS59135475U JPS59135475U JP2837683U JP2837683U JPS59135475U JP S59135475 U JPS59135475 U JP S59135475U JP 2837683 U JP2837683 U JP 2837683U JP 2837683 U JP2837683 U JP 2837683U JP S59135475 U JPS59135475 U JP S59135475U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- power supply
- base
- emitter
- detection 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
Landscapes
- Control Of High-Frequency Heating Circuits (AREA)
- Constitution Of High-Frequency Heating (AREA)
- Emergency Protection Circuit Devices (AREA)
- Control Of Voltage And Current In General (AREA)
- Measurement Of Current Or Voltage (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案による電源検知回路の一例を示す接続図
、第２図はその動作の説明に使用する波形図である。
−
１ａ、 １ｂは交流電源端子、１１は低電圧源、１１
ａはその直流電源端子、１３は電圧安定化回路、１２は
安定化された直流電源端子（負荷側電源端子）、１８は
抵抗器、１９はコンデンサ、２０はスイッチ用トランジ
スタ、２２は出力用トランジスタである。FIG. 1 is a connection diagram showing an example of a power supply detection circuit according to the present invention, and FIG. 2 is a waveform diagram used to explain its operation.
- 1a, 1b are AC power supply terminals, 11 is a low voltage source, 11
a is the DC power supply terminal, 13 is the voltage stabilization circuit, 12 is the stabilized DC power supply terminal (load side power supply terminal), 18 is the resistor, 19 is the capacitor, 20 is the switch transistor, 22 is the output transistor It is.
Claims (1)
ランジスタのベースと接地との間に、定電圧素子及びト
ランジスタのベース−エミッタを通ずる直列回路を接続
し、上記直流電源端子と接地との間龜抵抗器、ダイオー
ド、出力用トランジスタのコレクターエミッタ及び上記
トランジスタのコレクターエミッタを通ずる直列回路を
接続し、上記抵抗器及び上記ダイオードの接続点を接地
との間に、コンデンサ及びスイッチ用トランジスタのベ
ース−エミッタを通ずる直列回路を接続し、負荷側の直
流電源端子を抵抗器を通じて上記出力用トランジスタの
ベースに接続すると共に、上記スイッチ用トランジスタ
のコレクタに接続してなる電源検知回路。A series circuit passing through the constant voltage element and the base-emitter of the transistor is connected between the base of the voltage stabilizing transistor connected between the DC power supply terminal and the load and the ground, and the voltage stabilizing transistor is connected between the DC power supply terminal and the ground. A series circuit is connected between the resistor, the diode, the collector emitter of the output transistor, and the collector emitter of the transistor, and the base of the capacitor and the switch transistor is connected between the connection point of the resistor and the diode and the ground. - A power supply detection circuit comprising a series circuit connected through the emitter, and a DC power supply terminal on the load side connected to the base of the output transistor through a resistor and also connected to the collector of the switch transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2837683U JPS59135475U (en) | 1983-02-28 | 1983-02-28 | Power detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2837683U JPS59135475U (en) | 1983-02-28 | 1983-02-28 | Power detection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59135475U true JPS59135475U (en) | 1984-09-10 |
| JPH0333015Y2 JPH0333015Y2 (en) | 1991-07-12 |
Family
ID=30159265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2837683U Granted JPS59135475U (en) | 1983-02-28 | 1983-02-28 | Power detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59135475U (en) |
-
1983
- 1983-02-28 JP JP2837683U patent/JPS59135475U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0333015Y2 (en) | 1991-07-12 |
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