JPH0232199U - - Google Patents
Info
- Publication number
- JPH0232199U JPH0232199U JP13325188U JP13325188U JPH0232199U JP H0232199 U JPH0232199 U JP H0232199U JP 13325188 U JP13325188 U JP 13325188U JP 13325188 U JP13325188 U JP 13325188U JP H0232199 U JPH0232199 U JP H0232199U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- power supply
- power
- comparison 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
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 1
Description
第１図は本考案の具体的実施例である警報回路
のブロツク系統図、第２図は第１図の動作の説明
に供するタイムチヤート、第３図は本考案のその
他の実施例である警報回路のブロツク系統図、第
４図は第３図の動作の説明に供するタイムチヤー
ト、第５図は従来の警報回路の概要ブロツク図で
ある。
１……電源回路、２……波形整形回路、３……
周波数／電圧変換回路（Ｆ／Ｖ変換回路）、４…
…基準電圧発生回路、５……比較回路、６……警
報出力回路、７……第１異常出力回避回路、８…
…第２異常出力回避回路。
Fig. 1 is a block system diagram of an alarm circuit which is a specific embodiment of the present invention, Fig. 2 is a time chart for explaining the operation of Fig. 1, and Fig. 3 is an alarm circuit which is another embodiment of the present invention. FIG. 4 is a time chart for explaining the operation of FIG. 3, and FIG. 5 is a schematic block diagram of a conventional alarm circuit. 1...Power supply circuit, 2...Waveform shaping circuit, 3...
Frequency/voltage conversion circuit (F/V conversion circuit), 4...
... Reference voltage generation circuit, 5 ... Comparison circuit, 6 ... Alarm output circuit, 7 ... First abnormal output avoidance circuit, 8 ...
...Second abnormal output avoidance circuit.
Claims (1)
の出力で警報出力回路を動作させる警報機能を有
する警報回路において、 前記比較回路の出力及び前記電源回路の―電源
を監視し、電源投入時の前記＋／−電源の出力タ
イミングがアンバランスとなる時に、前記比較回
路の出力を、強制的に前記アンバランスが解消さ
れる迄の一定期間、前記電源投入前の状態に保持
する第１異常出力回避回路、 前記比較回路の出力及び前記電源回路からの基
準電圧と前記―電源を監視し、前記比較回路の出
力の異常状態がある時に、前記基準電圧と―電源
の状態により、前記比較回路出力を異常状態の前
の状態に保持する第２異常出力回避回路、 の少なくともいずれか一方を具備することを特
徴とする警報回路。[Claims for Utility Model Registration] In an alarm circuit having an alarm function of operating an alarm output circuit with the output of a comparison circuit to which +/- power is supplied from a power supply circuit, the output of the comparison circuit and the - power of the power supply circuit is monitored, and when the output timing of the +/- power supply becomes unbalanced when the power is turned on, the output of the comparison circuit is forcibly changed to the output timing before the power is turned on for a certain period of time until the unbalance is eliminated. a first abnormal output avoidance circuit that monitors the output of the comparison circuit and the reference voltage from the power supply circuit and the power supply, and when there is an abnormal state of the output of the comparison circuit, the reference voltage and the power supply An alarm circuit comprising at least one of: a second abnormal output avoidance circuit that maintains the comparison circuit output in a state before the abnormal state depending on the state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13325188U JPH0232199U (en) | 1988-04-13 | 1988-10-12 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4961788 | 1988-04-13 | ||
| JP13325188U JPH0232199U (en) | 1988-04-13 | 1988-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0232199U true JPH0232199U (en) | 1990-02-28 |
Family
ID=31497384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13325188U Pending JPH0232199U (en) | 1988-04-13 | 1988-10-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0232199U (en) |
-
1988
- 1988-10-12 JP JP13325188U patent/JPH0232199U/ja active Pending
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