JPS5556527A - Combustion detecting circuit - Google Patents
Combustion detecting circuitInfo
- Publication number
- JPS5556527A JPS5556527A JP12912378A JP12912378A JPS5556527A JP S5556527 A JPS5556527 A JP S5556527A JP 12912378 A JP12912378 A JP 12912378A JP 12912378 A JP12912378 A JP 12912378A JP S5556527 A JPS5556527 A JP S5556527A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- switching means
- oscillating
- combustion detecting
- condenser
- 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.)
- Granted
Links
Landscapes
- Regulation And Control Of Combustion (AREA)
- Control Of Combustion (AREA)
Abstract
PURPOSE: To provide a combustion detecting circuit wherein operations are highly stable and sure, an adaptable range for resistances of flames is wide and safety is high, by constituting the circuit in a type of an oscillating circuit.
CONSTITUTION: In a combustion detecting circuit, consisting of a flame detecting signal circuit A, an oscillating circuit B, a switching circuit C, an AC coupling means D and a rectifying circuit E, circuits B1WB5, effecting same functions as the oscillating circuit B, are provided. The circuit B1 is a switching means, being connected when a terminal voltage of a condenser 4 is arrived at a predetermined level due to receiving flame signal voltages. The circuit B2 is a timer circuit operated when the switching means B1 is connected. The circuit B3 is a voltage comparator having predetermined reference voltage and hysteresis. The circuit B4 is a reset circuit for resetting a condenser 35 in the circuit B2, and the circuit B5 is a stopping circuit for disconnecting the switching means B1.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12912378A JPS5556527A (en) | 1978-10-19 | 1978-10-19 | Combustion detecting circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12912378A JPS5556527A (en) | 1978-10-19 | 1978-10-19 | Combustion detecting circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5556527A true JPS5556527A (en) | 1980-04-25 |
JPS6132575B2 JPS6132575B2 (en) | 1986-07-28 |
Family
ID=15001639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12912378A Granted JPS5556527A (en) | 1978-10-19 | 1978-10-19 | Combustion detecting circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5556527A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60232422A (en) * | 1984-05-02 | 1985-11-19 | Matsushita Electric Ind Co Ltd | Flame electric current detecting apparatus |
-
1978
- 1978-10-19 JP JP12912378A patent/JPS5556527A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60232422A (en) * | 1984-05-02 | 1985-11-19 | Matsushita Electric Ind Co Ltd | Flame electric current detecting apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS6132575B2 (en) | 1986-07-28 |
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