JPS5592818A - Temperature control circuit for combustion equipment - Google Patents
Temperature control circuit for combustion equipmentInfo
- Publication number
- JPS5592818A JPS5592818A JP151379A JP151379A JPS5592818A JP S5592818 A JPS5592818 A JP S5592818A JP 151379 A JP151379 A JP 151379A JP 151379 A JP151379 A JP 151379A JP S5592818 A JPS5592818 A JP S5592818A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- resistor
- series
- control circuit
- comparator
- 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)
- Control Of Temperature (AREA)
Abstract
PURPOSE: To retain the output of a comparator at its fuel stop side in a temperature control circuit for a combustion equipment to thereby protect a transistor in the control circuit against damage by raising standard voltage and fixing a detecting voltage to a lower voltage than the standard voltage when a thermistor is disconnected.
CONSTITUTION: A standard voltage branched from a mid-point of resistors R5 and R6 connected in series with a DC power supply line is applied to the inverting input side of a comparator 1, and the other side of the resistor R6 is connected in series with a transistor TR1. Detected voltage VTH branched from a mid-point of a resistor R2 connected in series with a power supply line, a temperature setting variable resistor VR and a hot water temperature detecting thermistor TH is applied to the non-inverting input of the comparator 1. A resistor R3 is connected in series with the input line of the detected voltage, and a capacitor C3 is inserted between the input line and the power supply line (-)l to thus form an integrating circuit. A resistor R4 is connected across the capacitor C3 to thereby limit the upper limit of the detecting voltage.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP151379A JPS6032764B2 (en) | 1979-01-08 | 1979-01-08 | Temperature control circuit for combustion equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP151379A JPS6032764B2 (en) | 1979-01-08 | 1979-01-08 | Temperature control circuit for combustion equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5592818A true JPS5592818A (en) | 1980-07-14 |
JPS6032764B2 JPS6032764B2 (en) | 1985-07-30 |
Family
ID=11503555
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP151379A Expired JPS6032764B2 (en) | 1979-01-08 | 1979-01-08 | Temperature control circuit for combustion equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6032764B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018071852A (en) * | 2016-10-27 | 2018-05-10 | 株式会社ノーリツ | Burning appliance |
-
1979
- 1979-01-08 JP JP151379A patent/JPS6032764B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018071852A (en) * | 2016-10-27 | 2018-05-10 | 株式会社ノーリツ | Burning appliance |
Also Published As
Publication number | Publication date |
---|---|
JPS6032764B2 (en) | 1985-07-30 |
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