JPS641263U - - Google Patents
Info
- Publication number
- JPS641263U JPS641263U JP9544487U JP9544487U JPS641263U JP S641263 U JPS641263 U JP S641263U JP 9544487 U JP9544487 U JP 9544487U JP 9544487 U JP9544487 U JP 9544487U JP S641263 U JPS641263 U JP S641263U
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- input port
- output
- amplifier
- input
- 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
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Regulation And Control Of Combustion (AREA)
- Control Of Combustion (AREA)
Description
第１図は本考案の一実施例を示す炎検知回路図
、第２図ａ，ｂ，ｃはその波形図、第３図は従来
の炎検知回路図である。
１……商用電源、７，１５……コンパレータ、
８，１１……増幅器、９―１……結合素子の入力
側、９―２……結合素子の出力側、１０……熱電
対、２１……マイコン、２２……出力ポート、２
３，２４……入力ポート。
FIG. 1 is a flame detection circuit diagram showing an embodiment of the present invention, FIG. 2 a, b, and c are waveform diagrams thereof, and FIG. 3 is a conventional flame detection circuit diagram. 1... Commercial power supply, 7, 15... Comparator,
8, 11...Amplifier, 9-1...Input side of coupling element, 9-2...Output side of coupling element, 10...Thermocouple, 21...Microcomputer, 22...Output port, 2
3, 24...Input port.
Claims (1)
器の炎を検知する炎検知回路において、出力ポー
ト２２より入力ポート２３に入力されるパルスの
一波おきのパルスを出力し、入力ポート２３に入
力されるパルスの立上り後の一定時間Ｔ経た後に
入力ポート２４に一波おきのパルスの有無にて炎
の検知をするようにプログラムしたマイコン２１
を設け、出力ポート２２に直接又は増幅器８を介
して直流絶縁結合素子の入力側９―１を接続し、
熱電対１０の出力を増幅する増幅器１１の増幅率
を結合素子の出力側９―２を接続することにより
パルス変換し、増幅器１１のコンパレータ１５を
介して入力ポート２４に接続し、商用電源１に同
期したパルスをコンパレータ７を介して入力ポー
ト２３に接続したことを特徴とする炎検知回路。 In a flame detection circuit that detects the flame of a combustor by amplifying the output of a thermocouple 10 with an amplifier 11, every other pulse inputted to an input port 23 is outputted from an output port 22, and a pulse is outputted to the input port 23. The microcomputer 21 is programmed to detect flame based on the presence or absence of every other pulse at the input port 24 after a certain period of time T has elapsed after the rise of the input pulse.
and connect the input side 9-1 of the DC insulating coupling element to the output port 22 directly or via the amplifier 8,
The amplification factor of the amplifier 11 that amplifies the output of the thermocouple 10 is converted into a pulse by connecting the output side 9-2 of the coupling element, and is connected to the input port 24 via the comparator 15 of the amplifier 11, and is connected to the commercial power supply 1. A flame detection circuit characterized in that synchronized pulses are connected to an input port 23 via a comparator 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9544487U JPS641263U (en) | 1987-06-22 | 1987-06-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9544487U JPS641263U (en) | 1987-06-22 | 1987-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS641263U true JPS641263U (en) | 1989-01-06 |
Family
ID=30959984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9544487U Pending JPS641263U (en) | 1987-06-22 | 1987-06-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS641263U (en) |
-
1987
- 1987-06-22 JP JP9544487U patent/JPS641263U/ja active Pending