JPS61163433U - - Google Patents
Info
- Publication number
- JPS61163433U JPS61163433U JP4541185U JP4541185U JPS61163433U JP S61163433 U JPS61163433 U JP S61163433U JP 4541185 U JP4541185 U JP 4541185U JP 4541185 U JP4541185 U JP 4541185U JP S61163433 U JPS61163433 U JP S61163433U
- Authority
- JP
- Japan
- Prior art keywords
- hysteresis
- comparator
- emitter
- constant current
- switches
- 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
Description
第１図は本考案による一実施例を示す回路図、
第２図は従来のヒステリシス付コンパレータの原
理図、第３図は定電流負荷のエミツタフオロアの
入力段をもつコンパレータの回路図である。
Ｉ１：第１の定電流源、ｌ２：第２の定電流源
、Ｑ２：スイツチング用トランジスタ、Ａ：出力
端子。
FIG. 1 is a circuit diagram showing an embodiment of the present invention;
FIG. 2 is a principle diagram of a conventional comparator with hysteresis, and FIG. 3 is a circuit diagram of a comparator having an emitter follower input stage with a constant current load. I1 : first constant current source, l2 : second constant current source, Q2 : switching transistor, A: output terminal.
Claims (1)
差動型コンパレータにおいて、基準電圧源に接続
されるトランジスタのエミツタ電流を出力レベル
に応じて切換える回路を付加してなり、入力にヒ
ステリシスをもたせたことを特徴とするヒステリ
シス付コンパレータ。 A differential comparator equipped with an emitter follower input stage with a constant current load is characterized by the addition of a circuit that switches the emitter current of the transistor connected to the reference voltage source according to the output level, giving hysteresis to the input. Comparator with hysteresis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4541185U JPS61163433U (en) | 1985-03-27 | 1985-03-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4541185U JPS61163433U (en) | 1985-03-27 | 1985-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61163433U true JPS61163433U (en) | 1986-10-09 |
Family
ID=30558890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4541185U Pending JPS61163433U (en) | 1985-03-27 | 1985-03-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61163433U (en) |
-
1985
- 1985-03-27 JP JP4541185U patent/JPS61163433U/ja active Pending
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