JPS5599530A - Cooker - Google Patents
CookerInfo
- 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
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
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)
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 apparatus with sensor |
-
1979
- 1979-01-24 JP JP753579A patent/JPS5599530A/en active Pending
Cited By (2)
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 apparatus with sensor |
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