JPS61138931U - - Google Patents
Info
- Publication number
- JPS61138931U JPS61138931U JP2214385U JP2214385U JPS61138931U JP S61138931 U JPS61138931 U JP S61138931U JP 2214385 U JP2214385 U JP 2214385U JP 2214385 U JP2214385 U JP 2214385U JP S61138931 U JPS61138931 U JP S61138931U
- Authority
- JP
- Japan
- Prior art keywords
- ventilation
- output
- converter
- gas sensor
- read signal
- 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
- 238000009423 ventilation Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims 1
- 229910044991 metal oxide Inorganic materials 0.000 claims 1
- 150000004706 metal oxides Chemical class 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Ventilation (AREA)
Description
第１図は実施例の回路図、第２図は変形例の要
部回路図、第３図は第１図の実施例の動作を現す
波形図で有る。第４図は他の実施例の回路図で有
る。
２……ガスセンサ、１０……調整用可変抵抗、
１２……比較回路、１６……換気扇、２４……単
安定マルチバイブレータ、２８……Ａ／Ｄコンバ
ータ、３８……Ｄ／Ａコンバータ。
FIG. 1 is a circuit diagram of the embodiment, FIG. 2 is a main circuit diagram of a modified example, and FIG. 3 is a waveform diagram showing the operation of the embodiment of FIG. FIG. 4 is a circuit diagram of another embodiment. 2... Gas sensor, 10... Variable resistance for adjustment,
12... Comparison circuit, 16... Ventilation fan, 24... Monostable multivibrator, 28... A/D converter, 38... D/A converter.
Claims (1)
ガスセンサの出力により換気装置を駆動するよう
にしたものにおいて、 換気装置の動作に対応して基準出力読み込み信
号を発するための換気検出手段と、 基準出力読み込み信号により動作して換気時の
ガスセンサの出力をデジタル的に記憶するための
、Ｄ／Ａコンバータ付きＡ／Ｄコンバータと、 非換気時のガスセンサの出力と、前記Ｄ／Ａコ
ンバータの出力とを異なるゲインにおいて比較し
、換気装置を駆動するための比較手段、 とを設けたことを特徴とする換気コントローラ。[Scope of Claim for Utility Model Registration] In a device in which a ventilation device is driven by the output of a metal oxide semiconductor gas sensor for detecting atmospheric pollution, a device for generating a reference output read signal in response to the operation of the ventilation device. ventilation detection means; an A/D converter with a D/A converter operated by a reference output read signal to digitally store the output of the gas sensor during ventilation; the output of the gas sensor during non-ventilation; 1. A ventilation controller comprising: comparison means for comparing the output of the /A converter at different gains and driving a ventilation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2214385U JPS61138931U (en) | 1985-02-19 | 1985-02-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2214385U JPS61138931U (en) | 1985-02-19 | 1985-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61138931U true JPS61138931U (en) | 1986-08-28 |
Family
ID=30514177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2214385U Pending JPS61138931U (en) | 1985-02-19 | 1985-02-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61138931U (en) |
-
1985
- 1985-02-19 JP JP2214385U patent/JPS61138931U/ja active Pending
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