JPS5599530A - Cooker - Google Patents

Cooker

Info

Publication number
JPS5599530A
JPS5599530A JP753579A JP753579A JPS5599530A JP S5599530 A JPS5599530 A JP S5599530A JP 753579 A JP753579 A JP 753579A JP 753579 A JP753579 A JP 753579A JP S5599530 A JPS5599530 A JP S5599530A
Authority
JP
Japan
Prior art keywords
comparator
switch
gas sensor
time period
voltage
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
JP753579A
Other languages
Japanese (ja)
Inventor
Takeshi Tanabe
Shuji Nakagawa
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP753579A priority Critical patent/JPS5599530A/en
Publication of JPS5599530A publication Critical patent/JPS5599530A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electric Ovens (AREA)
  • Control Of Temperature (AREA)

Abstract

PURPOSE: To avoid heating during unstable-operation period of a gas sensor and provide stable heating operation by a method wherein a heat source is energized after a predetermined time period required for the gas sensor to get stable operation has passed after the closing of a cooking switch.
CONSTITUTION: With food placed in an oven 2, a door closed, and a door switch 29 as well as a cooking switch 30 turned on, an AC power souce 27 is immediately connected with a detection circuit 26. The voltage on a compared-voltage input terminal 21 of a second comparator 18 in the circuit 26 gradually increases beyond the time constant of a charging circuit. The output of a first comparator 10 is at high level after the closing of the switch 30; the output of the second comparator 18 remains at low level during the time period T0 required for the charging voltage of a capacitor 20 to accord with a reference voltage. Therefore, a switching transistor 16 is energized when the time period T0 has passed and a gas sensor 7 gets a stable operation condition, to close a relay contact 28 for driving a heating device 4.
COPYRIGHT: (C)1980,JPO&Japio
JP753579A 1979-01-24 1979-01-24 Cooker Pending JPS5599530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP753579A JPS5599530A (en) 1979-01-24 1979-01-24 Cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP753579A JPS5599530A (en) 1979-01-24 1979-01-24 Cooker

Publications (1)

Publication Number Publication Date
JPS5599530A true JPS5599530A (en) 1980-07-29

Family

ID=11668470

Family Applications (1)

Application Number Title Priority Date Filing Date
JP753579A Pending JPS5599530A (en) 1979-01-24 1979-01-24 Cooker

Country Status (1)

Country Link
JP (1) JPS5599530A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62266335A (en) * 1986-05-09 1987-11-19 Matsushita Seiko Co Ltd Air cleaner
JPH03144221A (en) * 1989-10-27 1991-06-19 Matsushita Electric Ind Co Ltd Heating device with sensor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62266335A (en) * 1986-05-09 1987-11-19 Matsushita Seiko Co Ltd Air cleaner
JPH03144221A (en) * 1989-10-27 1991-06-19 Matsushita Electric Ind Co Ltd Heating device with sensor

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