JPH0263125U - - Google Patents
Info
- Publication number
- JPH0263125U JPH0263125U JP14294688U JP14294688U JPH0263125U JP H0263125 U JPH0263125 U JP H0263125U JP 14294688 U JP14294688 U JP 14294688U JP 14294688 U JP14294688 U JP 14294688U JP H0263125 U JPH0263125 U JP H0263125U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- intersection
- time constant
- power failure
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Power Sources (AREA)
Description
第１図は本願考案による電源瞬断表示回路の一
実施例の接続図、第２図は従来の電源瞬断による
リセツト回路である。
図中、１，１５は瞬断検出部、２，１８は波形
整形回路、３はラツチ回路、４は駆動回路である
。
FIG. 1 is a connection diagram of an embodiment of the instantaneous power interruption indicating circuit according to the present invention, and FIG. 2 is a conventional reset circuit in response to instantaneous power interruption. In the figure, reference numerals 1 and 15 are momentary interruption detection sections, 2 and 18 are waveform shaping circuits, 3 is a latch circuit, and 4 is a drive circuit.
Claims (1)
電源側に接続した第１ＣＲ時定数回路と、この第
１ＣＲ時定数回路の交点に前記瞬断検出回路の出
力端を接続すると共にこの交点に接続しリセツト
信号を出力する波形整形回路と、前記瞬断検出回
路にデータ端子を接続し、抵抗を電源側に接続し
た第２ＣＲ時定数回路の交点にリセツト端子を接
続したラツチ回路と、このラツチ回路に接続した
駆動回路と、駆動回路に接続した表示回路とで構
成したことを特徴とする電源瞬断表示回路。 A momentary power failure detection circuit for detecting a momentary power failure, a first CR time constant circuit having a resistor connected to the power source side, and an output end of the instantaneous power failure detection circuit being connected to the intersection of the first CR time constant circuit, and this intersection. a waveform shaping circuit that is connected to the power supply circuit and outputs a reset signal; a latch circuit that has a data terminal connected to the instantaneous interruption detection circuit and a reset terminal connected to the intersection of a second CR time constant circuit that has a resistor connected to the power supply side; What is claimed is: 1. A power interruption display circuit comprising a drive circuit connected to a latch circuit and a display circuit connected to the drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14294688U JPH0263125U (en) | 1988-10-31 | 1988-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14294688U JPH0263125U (en) | 1988-10-31 | 1988-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0263125U true JPH0263125U (en) | 1990-05-11 |
Family
ID=31409324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14294688U Pending JPH0263125U (en) | 1988-10-31 | 1988-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0263125U (en) |
-
1988
- 1988-10-31 JP JP14294688U patent/JPH0263125U/ja active Pending
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