JPS55150424A - Proportional combustion control device - Google Patents

Proportional combustion control device

Info

Publication number
JPS55150424A
JPS55150424A JP5813279A JP5813279A JPS55150424A JP S55150424 A JPS55150424 A JP S55150424A JP 5813279 A JP5813279 A JP 5813279A JP 5813279 A JP5813279 A JP 5813279A JP S55150424 A JPS55150424 A JP S55150424A
Authority
JP
Japan
Prior art keywords
circuit
control circuit
voltage portion
low voltage
proportional
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
JP5813279A
Other languages
Japanese (ja)
Inventor
Sumio Nakagawa
Norio Tanaka
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5813279A priority Critical patent/JPS55150424A/en
Publication of JPS55150424A publication Critical patent/JPS55150424A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Combustion (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

PURPOSE: To commonly use both a proportional control circuit and a sequence control circuit at constant voltage circuit or the like to reduce the number of circuit elements by connecting a low voltage portion and a high voltage portion in a proportional control circuit portion through a phototransistor.
CONSTITUTION: A proportional combustion control device consists of a sequence control circuit 3 for controlling automatically the sequence of the on or off of the burner combustion and a proportional control circuit 1 for proportionally controlling the load current flown to high load 2 such as blower motor or the like. In this case, a low voltage portion 20 having a temperature sensor 5 and an amplifier circuit 6 in the circuit 1 is connected to the high voltage portion of the load current limiter circuit 7 through a phototransistor 19 for electrically insulating it. According to this configuration, the ground of the low voltage portion 20 is commonly used to the ground G of the control circuit 3, and a constant-voltage circuit 12 can be commonly used as the constant-voltage circuit of the low voltage portion 20 to as to reduce the number of circuit elements as compared with the conventional one.
COPYRIGHT: (C)1980,JPO&Japio
JP5813279A 1979-05-14 1979-05-14 Proportional combustion control device Pending JPS55150424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5813279A JPS55150424A (en) 1979-05-14 1979-05-14 Proportional combustion control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5813279A JPS55150424A (en) 1979-05-14 1979-05-14 Proportional combustion control device

Publications (1)

Publication Number Publication Date
JPS55150424A true JPS55150424A (en) 1980-11-22

Family

ID=13075448

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5813279A Pending JPS55150424A (en) 1979-05-14 1979-05-14 Proportional combustion control device

Country Status (1)

Country Link
JP (1) JPS55150424A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01151051U (en) * 1988-04-07 1989-10-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01151051U (en) * 1988-04-07 1989-10-18

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