JPS57108521A - Digital combustion controlling apparatus - Google Patents

Digital combustion controlling apparatus

Info

Publication number
JPS57108521A
JPS57108521A JP18476680A JP18476680A JPS57108521A JP S57108521 A JPS57108521 A JP S57108521A JP 18476680 A JP18476680 A JP 18476680A JP 18476680 A JP18476680 A JP 18476680A JP S57108521 A JPS57108521 A JP S57108521A
Authority
JP
Japan
Prior art keywords
circuit
shift register
output
trial
valve controlling
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
Application number
JP18476680A
Other languages
Japanese (ja)
Other versions
JPS6357697B2 (en
Inventor
Yuji Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Azbil Corp
Original Assignee
Azbil Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Azbil Corp filed Critical Azbil Corp
Priority to JP18476680A priority Critical patent/JPS57108521A/en
Publication of JPS57108521A publication Critical patent/JPS57108521A/en
Publication of JPS6357697B2 publication Critical patent/JPS6357697B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Regulation And Control Of Combustion (AREA)
  • Control Of Combustion (AREA)

Abstract

PURPOSE: To obtain a fail-safe type digital combustion controlling apparatus for use in a gas burner or the like, by combining a pilot valve driving circuit including an AND-circuit and a memory circuit with the output of a trial shift register and a matching circuit resetting output.
CONSTITUTION: A thermal request signal generating section TH is set into operation, a safety switch heater SSH is operated and an input is given to a prepurging shift register PSR, so that a series of operation is carried out according to a predetermined sequence. At the same time, a first valve controlling circuit VIC and a second valve controlling circuit V2C are set into operation through operation of a trial clock generating section OSC2, so that a gas burner or the like is ignited. Here, if through-pass is caused in a trial shift register TSR, output of an AND-circuit AN2 is inverted to a low level and a memory M3 is reset, so that application of input signals to the first and the second valve controlling circuits V1C, V2C is interrupted and a fail-safe system is set into operation.
COPYRIGHT: (C)1982,JPO&Japio
JP18476680A 1980-12-25 1980-12-25 Digital combustion controlling apparatus Granted JPS57108521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18476680A JPS57108521A (en) 1980-12-25 1980-12-25 Digital combustion controlling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18476680A JPS57108521A (en) 1980-12-25 1980-12-25 Digital combustion controlling apparatus

Publications (2)

Publication Number Publication Date
JPS57108521A true JPS57108521A (en) 1982-07-06
JPS6357697B2 JPS6357697B2 (en) 1988-11-11

Family

ID=16158947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18476680A Granted JPS57108521A (en) 1980-12-25 1980-12-25 Digital combustion controlling apparatus

Country Status (1)

Country Link
JP (1) JPS57108521A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04186015A (en) * 1990-11-20 1992-07-02 Matsushita Electric Ind Co Ltd Combustion control circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5360729A (en) * 1976-11-12 1978-05-31 Hitachi Ltd Timer circuit for combustion control
JPS5367121A (en) * 1976-11-29 1978-06-15 Hitachi Ltd Combustion control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5360729A (en) * 1976-11-12 1978-05-31 Hitachi Ltd Timer circuit for combustion control
JPS5367121A (en) * 1976-11-29 1978-06-15 Hitachi Ltd Combustion control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04186015A (en) * 1990-11-20 1992-07-02 Matsushita Electric Ind Co Ltd Combustion control circuit

Also Published As

Publication number Publication date
JPS6357697B2 (en) 1988-11-11

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