JPS5697727A - Proportional valve controlling circuit for combustion control system - Google Patents

Proportional valve controlling circuit for combustion control system

Info

Publication number
JPS5697727A
JPS5697727A JP38080A JP38080A JPS5697727A JP S5697727 A JPS5697727 A JP S5697727A JP 38080 A JP38080 A JP 38080A JP 38080 A JP38080 A JP 38080A JP S5697727 A JPS5697727 A JP S5697727A
Authority
JP
Japan
Prior art keywords
proportional valve
hot
circuit
control circuit
accordance
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
JP38080A
Other languages
Japanese (ja)
Inventor
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 JP38080A priority Critical patent/JPS5697727A/en
Publication of JPS5697727A publication Critical patent/JPS5697727A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To remove hysteresis effect in the proportional valve and improve the control characteristics thereof by a method wherein a bidirectional constant voltage circuit is inserted in series with an integral capacitor in a PID control circuit inputting a hot-water outlet temperature deviation signal in the proportional valve control circuit.
CONSTITUTION: A hot-water heater has the proportional valve 13 varying the opening degree thereof continuously in accordance with conducted current to control increase and decrease of the volume of supplied gas, and the proportional valve 13 is controlled by a control device in accordance with the output of a thermistor 18 detecting a hot-water temperature at the hot-water outlet of the hot-water heater. The control device comprises the PID control circuit inputting a differential output between the thermistor 18 and a temperature setting variable resistor VR and effecting an integrating operation principally and a constant current driving circuit supplying a current in accordance with the output of the PID control circuit. In this case, the PID control circuit connects a circuit in which the same kind of diodes 63, 64 are connected in anti-parallel connection to the integral capacitor 62 of the including integral circuit. According to this method, the hystresis effect in the proportional valve may be removed.
COPYRIGHT: (C)1981,JPO&Japio
JP38080A 1980-01-07 1980-01-07 Proportional valve controlling circuit for combustion control system Pending JPS5697727A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP38080A JPS5697727A (en) 1980-01-07 1980-01-07 Proportional valve controlling circuit for combustion control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP38080A JPS5697727A (en) 1980-01-07 1980-01-07 Proportional valve controlling circuit for combustion control system

Publications (1)

Publication Number Publication Date
JPS5697727A true JPS5697727A (en) 1981-08-06

Family

ID=11472184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP38080A Pending JPS5697727A (en) 1980-01-07 1980-01-07 Proportional valve controlling circuit for combustion control system

Country Status (1)

Country Link
JP (1) JPS5697727A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61237916A (en) * 1985-04-15 1986-10-23 Omron Tateisi Electronics Co Combustion controller for hot water supplier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61237916A (en) * 1985-04-15 1986-10-23 Omron Tateisi Electronics Co Combustion controller for hot water supplier

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