JPH0459479U - - Google Patents
Info
- Publication number
- JPH0459479U JPH0459479U JP10243790U JP10243790U JPH0459479U JP H0459479 U JPH0459479 U JP H0459479U JP 10243790 U JP10243790 U JP 10243790U JP 10243790 U JP10243790 U JP 10243790U JP H0459479 U JPH0459479 U JP H0459479U
- Authority
- JP
- Japan
- Prior art keywords
- set value
- circuit
- state
- interruption determination
- determination 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.)
- Pending
Links
- 239000004065 semiconductor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Power Sources (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
第１図はこの考案の一実施例による電源瞬断判
定回路を示す回路図、第２図ａ，ｂは従来の電源
瞬断判定回路の回路図である。
１はＮＯＲゲート、２はＦＥＴスイツチ、３，
６，７，８は抵抗、４はダイオード、５はコンデ
ンサ、９はオペアンプ、１１はリレードライバ、
１２は時限保持動作リレー、１３はインバータ、
１４は制御回路、１５は制御回路電源、１６は信
号保持回路、１７は２次電源。なお、図中、同一
符号は同一、又は相当部分を示す。
FIG. 1 is a circuit diagram showing an instantaneous power interruption determination circuit according to an embodiment of the present invention, and FIGS. 2a and 2b are circuit diagrams of a conventional power interruption determination circuit. 1 is a NOR gate, 2 is a FET switch, 3,
6, 7, 8 are resistors, 4 is a diode, 5 is a capacitor, 9 is an operational amplifier, 11 is a relay driver,
12 is a timed holding operation relay, 13 is an inverter,
14 is a control circuit, 15 is a control circuit power supply, 16 is a signal holding circuit, and 17 is a secondary power supply. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
あるかどうかを判定して設定値以内であれば、そ
の状態が発生する前の信号の状態を保持する回路
において、半導体素子を用い、かつ２次電源を必
要としないように構成したことを特徴とする電源
瞬断判定回路。 A circuit that detects a power outage, determines whether the time is within a set value, and, if it is within the set value, maintains the state of the signal before that state occurs, using a semiconductor element, and A power interruption determination circuit characterized in that it is configured so as not to require a secondary power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10243790U JPH0459479U (en) | 1990-09-28 | 1990-09-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10243790U JPH0459479U (en) | 1990-09-28 | 1990-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0459479U true JPH0459479U (en) | 1992-05-21 |
Family
ID=31846692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10243790U Pending JPH0459479U (en) | 1990-09-28 | 1990-09-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0459479U (en) |
-
1990
- 1990-09-28 JP JP10243790U patent/JPH0459479U/ja active Pending