Title:
CONTROL CIRCUIT OF EQUIPMENT HAVING GAS SENSOR
Document Type and Number:
Japanese Patent JP3156329
Kind Code:
B2
Abstract:
PURPOSE: To obtain a control circuit of a simple circuit constitution which is not operated until a gas senor becomes stable and is of power-saving type, and securely controls the equipment depending on the filthiness in a room after the gas sensor gets stable.
CONSTITUTION: A temperature detecting device 9 is provided within a gas senor 6 or in the vicinity of the gas sensor 6, and a calculating control circuit 12 to start the calculation interlockingly with the output of the temperature detecting device 9 and to realize control according to the output of the gas sensor is provided. A suturation point detecting device to detect the saturation point of the temperature value of the gas sensor is provided, and a calculation control circuit to start the calculation interlockingly with the output of this detecting device and to realize control according to the output of the gas sensor is provided.
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Inventors:
Tatsuo Yoshikawa
Application Number:
JP458092A
Publication Date:
April 16, 2001
Filing Date:
January 14, 1992
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
F24F7/007; G01N27/00; G01N27/12; G05D21/00; (IPC1-7): G01N27/00; F24F7/007; G01N27/12; G05D21/00
Domestic Patent References:
| JP3189549A | ||||
| JP378651A |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)