JPH02140150U - - Google Patents
Info
- Publication number
- JPH02140150U JPH02140150U JP4854789U JP4854789U JPH02140150U JP H02140150 U JPH02140150 U JP H02140150U JP 4854789 U JP4854789 U JP 4854789U JP 4854789 U JP4854789 U JP 4854789U JP H02140150 U JPH02140150 U JP H02140150U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- flame
- integrating circuit
- circuit
- pull
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
Landscapes
- Control Of Combustion (AREA)
Description
第１図は本考案の実施例を示す回路図、第２図
は従来例を示す回路図、第３図は電蝕発生を説明
するための図である。
２１……器体アース、２２……バーナ、２３…
…フレームロツド、２４……トランス、２５……
抵抗、２６……コンデンサ、２９……プルアツプ
抵抗。
FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIG. 2 is a circuit diagram showing a conventional example, and FIG. 3 is a diagram for explaining the occurrence of electrolytic corrosion. 21... Vessel earth, 22... Burner, 23...
...Framerod, 24...Trance, 25...
Resistor, 26...Capacitor, 29...Pull-up resistor.
Claims (1)
と、このバーナからの炎が接触する位置に設けら
れたフレームロツドと、抵抗及びコンデンサから
なる積分回路と、前記フレームロツドと前記積分
回路の抵抗の一端との間に接続されたトランスと
、前記積分回路の抵抗の他端と直流電源の正極端
子との間に接続されたプルアツプ抵抗とからなり
、前記プルアツプ抵抗の電位差を炎検知信号とし
て出力することを特徴とする炎検知回路。 A burner connected to body ground and circuit ground, a flame rod provided at a position where the flame from the burner comes into contact, an integrating circuit consisting of a resistor and a capacitor, and one end of the resistor of the integrating circuit between the flame rod and the flame rod. and a pull-up resistor connected between the other end of the resistor of the integrating circuit and the positive terminal of the DC power supply, and outputs the potential difference of the pull-up resistor as a flame detection signal. flame detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4854789U JPH02140150U (en) | 1989-04-25 | 1989-04-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4854789U JPH02140150U (en) | 1989-04-25 | 1989-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02140150U true JPH02140150U (en) | 1990-11-22 |
Family
ID=31565451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4854789U Pending JPH02140150U (en) | 1989-04-25 | 1989-04-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02140150U (en) |
-
1989
- 1989-04-25 JP JP4854789U patent/JPH02140150U/ja active Pending
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