JPS6378437U - - Google Patents
Info
- Publication number
- JPS6378437U JPS6378437U JP17292586U JP17292586U JPS6378437U JP S6378437 U JPS6378437 U JP S6378437U JP 17292586 U JP17292586 U JP 17292586U JP 17292586 U JP17292586 U JP 17292586U JP S6378437 U JPS6378437 U JP S6378437U
- Authority
- JP
- Japan
- Prior art keywords
- input terminal
- converter
- external signal
- comparison circuit
- signal input
- 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
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例を示す電気回路図、
第２図は第１図の要部回路図、第３図は従来例を
示す電気回路図である。
１…Ａ／Ｄ変換器（マイコン）、２…基準電圧
入力端子、３…外部信号入力端子、１Ｃ…比較回
路、Ｄ…ダイオード、Ｒ…抵抗。
FIG. 1 is an electrical circuit diagram showing an embodiment of the present invention;
FIG. 2 is a circuit diagram of the main part of FIG. 1, and FIG. 3 is an electric circuit diagram showing a conventional example. 1... A/D converter (microcomputer), 2... Reference voltage input terminal, 3... External signal input terminal, 1C... Comparison circuit, D... Diode, R... Resistor.
Claims (1)
力端に帰還される比較回路と、Ａ／Ｄ変換器の外
部信号入力端子から該比較回路の出力端に順方向
に接続したダイオードと、Ａ／Ｄ変換器に入力さ
れる基準電圧設定回路と前記外部信号入力端子と
の間に接続された抵抗とからなることを特徴とす
るＡ／Ｄ変換器。 A comparison circuit which inputs an external signal to a positive phase input terminal and whose output is fed back to a negative phase input terminal, and a diode connected in a forward direction from an external signal input terminal of an A/D converter to an output terminal of the comparison circuit. , an A/D converter comprising a reference voltage setting circuit input to the A/D converter and a resistor connected between the external signal input terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17292586U JPS6378437U (en) | 1986-11-10 | 1986-11-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17292586U JPS6378437U (en) | 1986-11-10 | 1986-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6378437U true JPS6378437U (en) | 1988-05-24 |
Family
ID=31109909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17292586U Pending JPS6378437U (en) | 1986-11-10 | 1986-11-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6378437U (en) |
-
1986
- 1986-11-10 JP JP17292586U patent/JPS6378437U/ja active Pending
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