JPH0390040U - - Google Patents
Info
- Publication number
- JPH0390040U JPH0390040U JP15083589U JP15083589U JPH0390040U JP H0390040 U JPH0390040 U JP H0390040U JP 15083589 U JP15083589 U JP 15083589U JP 15083589 U JP15083589 U JP 15083589U JP H0390040 U JPH0390040 U JP H0390040U
- Authority
- JP
- Japan
- Prior art keywords
- temperature detection
- detection circuit
- output end
- temperature
- microcomputer
- 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
- 238000001514 detection method Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Description
第１図は本考案の一実施例を示す温度検出のブ
ロツク図、第２図は同実施例の要部回路説明図、
第３図は同実施例に基づく温度検出特性図、第４
図は従来例を示す温度検出のブロツク図である。
図中、１……温度検出回路、２……温度検出セ
ンサ（サーミスタ）、３……マイコン、４……Ａ
／Ｄ変換部、５……制御部、６……受光部、７…
…入出力ポート、Ｅ……電源、Ｐ……出力端、Ｒ
１，Ｒ２……抵抗。
Fig. 1 is a temperature detection block diagram showing an embodiment of the present invention, Fig. 2 is an explanatory diagram of the main circuit of the embodiment,
Figure 3 is a temperature detection characteristic diagram based on the same example;
The figure is a block diagram of temperature detection showing a conventional example. In the figure, 1...Temperature detection circuit, 2...Temperature detection sensor (thermistor), 3...Microcomputer, 4...A
/D conversion section, 5... control section, 6... light receiving section, 7...
...Input/output port, E...Power supply, P...Output end, R
1, R2...Resistance.
Claims (1)
検出センサと第１の抵抗とから成る温度検出回路
において、前記温度検出回路の出力端と前記アー
ス間に、高温検出時に接続され、低温検出時に接
続を解除される第２の抵抗を接続して成ることを
特徴とする温度検出回路。 (2) 前記温度検出回路の出力端を空気調和機を
運転制御するマイコンのＡ／Ｄ変換部の入力ポー
トに接続するとともに、前記出力端に接続された
第２の抵抗の一側を、暖房運転時はＬレベルに、
冷房運転時はＨレベルに制御される前記マイコン
の入出力ポートに接続して成る請求項１記載の温
度検出回路。[Claims for Utility Model Registration] (1) In a temperature detection circuit consisting of a temperature detection sensor and a first resistor connected in series between a DC power source and ground, between the output end of the temperature detection circuit and the ground, A temperature detection circuit characterized by connecting a second resistor that is connected when high temperature is detected and disconnected when low temperature is detected. (2) Connect the output end of the temperature detection circuit to the input port of the A/D converter of the microcomputer that controls the operation of the air conditioner, and connect one side of the second resistor connected to the output end to the heating When driving, set to L level.
2. The temperature detection circuit according to claim 1, wherein the temperature detection circuit is connected to an input/output port of the microcomputer which is controlled to an H level during cooling operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15083589U JPH0390040U (en) | 1989-12-28 | 1989-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15083589U JPH0390040U (en) | 1989-12-28 | 1989-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0390040U true JPH0390040U (en) | 1991-09-13 |
Family
ID=31697167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15083589U Pending JPH0390040U (en) | 1989-12-28 | 1989-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0390040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013137201A (en) * | 2011-12-28 | 2013-07-11 | Noritz Corp | Signal detection circuit and heating device |
-
1989
- 1989-12-28 JP JP15083589U patent/JPH0390040U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013137201A (en) * | 2011-12-28 | 2013-07-11 | Noritz Corp | Signal detection circuit and heating device |
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