JPS61189274U - - Google Patents
Info
- Publication number
- JPS61189274U JPS61189274U JP7220785U JP7220785U JPS61189274U JP S61189274 U JPS61189274 U JP S61189274U JP 7220785 U JP7220785 U JP 7220785U JP 7220785 U JP7220785 U JP 7220785U JP S61189274 U JPS61189274 U JP S61189274U
- Authority
- JP
- Japan
- Prior art keywords
- limit value
- window comparator
- upper limit
- signal
- high 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.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005669 field effect Effects 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
Description
第１図は本考案に係わるフエイルセーフなウイ
ンド・コンパレータの１実施例を示す回路図、第
２図は従来のフエイルセーフなウインド・コンパ
レータの一例を示す回路図である。
１０…ウインド・コンパレータ、２０…インピ
ーダンス変換回路、２１…電界効果トランジスタ
、Ｒ１０，Ｒ２０…抵抗。
FIG. 1 is a circuit diagram showing an embodiment of a fail-safe window comparator according to the present invention, and FIG. 2 is a circuit diagram showing an example of a conventional fail-safe window comparator. DESCRIPTION OF SYMBOLS 10... Window comparator, 20... Impedance conversion circuit, 21... Field effect transistor, R10 , R20 ... Resistor.
Claims (1)
囲内の信号が入力したときのみ発振出力を生じる
フエイルセーフな構成のウインド・コンパレータ
において、ウインド・コンパレータの信号入力側
に、前記上限値よりも高い電圧レベルの作動電源
を有する高入力インピーダンスのインピーダンス
変換回路を設けたことを特徴とするウインド・コ
ンパレータ。 In a window comparator with a fail-safe configuration that generates an oscillating output only when a signal within the range of a lower limit value and an upper limit value higher than the power supply voltage level is input, a voltage higher than the upper limit value is applied to the signal input side of the window comparator. A window comparator characterized in that it is provided with a high input impedance impedance conversion circuit having a high input impedance operating power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985072207U JPH0747745Y2 (en) | 1985-05-17 | 1985-05-17 | Window comparator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985072207U JPH0747745Y2 (en) | 1985-05-17 | 1985-05-17 | Window comparator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61189274U true JPS61189274U (en) | 1986-11-26 |
| JPH0747745Y2 JPH0747745Y2 (en) | 1995-11-01 |
Family
ID=30610408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985072207U Expired - Lifetime JPH0747745Y2 (en) | 1985-05-17 | 1985-05-17 | Window comparator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0747745Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985962A (en) * | 1982-11-09 | 1984-05-18 | Nippon Signal Co Ltd:The | Current detector |
-
1985
- 1985-05-17 JP JP1985072207U patent/JPH0747745Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985962A (en) * | 1982-11-09 | 1984-05-18 | Nippon Signal Co Ltd:The | Current detector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0747745Y2 (en) | 1995-11-01 |