JPS5697728A - Proportional valve controlling circuit in combustion control system - Google Patents

Proportional valve controlling circuit in combustion control system

Info

Publication number
JPS5697728A
JPS5697728A JP17113079A JP17113079A JPS5697728A JP S5697728 A JPS5697728 A JP S5697728A JP 17113079 A JP17113079 A JP 17113079A JP 17113079 A JP17113079 A JP 17113079A JP S5697728 A JPS5697728 A JP S5697728A
Authority
JP
Japan
Prior art keywords
proportional valve
output
comparator
constituted
hot
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
Application number
JP17113079A
Other languages
Japanese (ja)
Inventor
Yasuhiko Ueno
Shinichi Murashige
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP17113079A priority Critical patent/JPS5697728A/en
Publication of JPS5697728A publication Critical patent/JPS5697728A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Combustion (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Feedback Control In General (AREA)

Abstract

PURPOSE: To enable to remove a hysteresis in the proportional valve, which is existing as a characteristic thereof, by a method wherein a shift circuit consisting of a comparator, inputting a hot-water temperature deviation signal, and a switching element, switched by the output of the comparator, is equipped.
CONSTITUTION: The output of a bridge 55 constituted with a voltage V1, set by a resistor 61, a hot-water temperature setter 51, a hot-water temperature detector 52 and a resistor 62, and a standard voltage V2, constituted with resistors 63, 64, is inputted into the proportional control circuit 53. The same circuit 53 is constituted with a PID circuit effecting an integrating operation principally and the output VOUT thereof sets a voltage VS, divided by resistors 67, 68 in accordance with the characteristics of the proportional valve 54 and becomming a standard of the value of a valve current. Comparative voltages V1, V2 of the bridge 55 are compared in the comparator 56 and the output thereof is connected to the base of a transistor Tr57. One end of a hysteresis correcting resistor 69 is connected to the collector of the transistor Tr57 while the other end thereof is connected to the base of a proportional valve driving transistor Tr58.
COPYRIGHT: (C)1981,JPO&Japio
JP17113079A 1979-12-31 1979-12-31 Proportional valve controlling circuit in combustion control system Pending JPS5697728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17113079A JPS5697728A (en) 1979-12-31 1979-12-31 Proportional valve controlling circuit in combustion control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17113079A JPS5697728A (en) 1979-12-31 1979-12-31 Proportional valve controlling circuit in combustion control system

Publications (1)

Publication Number Publication Date
JPS5697728A true JPS5697728A (en) 1981-08-06

Family

ID=15917528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17113079A Pending JPS5697728A (en) 1979-12-31 1979-12-31 Proportional valve controlling circuit in combustion control system

Country Status (1)

Country Link
JP (1) JPS5697728A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5884304A (en) * 1981-11-13 1983-05-20 Matsushita Electric Ind Co Ltd Proportional controller
JPS60169016A (en) * 1984-02-10 1985-09-02 Youei Seisakusho:Kk Burning control device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5884304A (en) * 1981-11-13 1983-05-20 Matsushita Electric Ind Co Ltd Proportional controller
JPS60169016A (en) * 1984-02-10 1985-09-02 Youei Seisakusho:Kk Burning control device
JPH0440608B2 (en) * 1984-02-10 1992-07-03 Harman Co Ltd

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