JPH03123325U - - Google Patents
Info
- Publication number
- JPH03123325U JPH03123325U JP3193790U JP3193790U JPH03123325U JP H03123325 U JPH03123325 U JP H03123325U JP 3193790 U JP3193790 U JP 3193790U JP 3193790 U JP3193790 U JP 3193790U JP H03123325 U JPH03123325 U JP H03123325U
- Authority
- JP
- Japan
- Prior art keywords
- semi
- operational amplifier
- fixed resistor
- transistor
- led
- 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 1
Landscapes
- Electronic Switches (AREA)
Description
図面は本考案による一実施例の構成図である。
１……半固定抵抗器のハウジング、２……半固
定抵抗、３……コンパレータ回路、４……オペア
ンプ、５……ＬＥＤ、６……トランジスタ、ｔ１
〜ｔ６……端子。
The drawing is a block diagram of an embodiment of the present invention. 1... Semi-fixed resistor housing, 2... Semi-fixed resistor, 3... Comparator circuit, 4... Operational amplifier, 5... LED, 6... Transistor, t1
~t6...terminal.
Claims (1)
を有するコンパレータ回路３、ＬＥＤ５、トラン
ジスタ６を収容し、端子ｔ１，ｔ４間に前記オペ
アンプ４の駆動電圧Ｖｄを、端子ｔ２に入力電圧
Ｖｉｎを、それぞれ印加し、半固定抵抗２を調整
することで、前記コンパレータ回路３を作動させ
ることにより、ＬＥＤ５とトランジスタ６をＯＮ
／ＯＦＦ動作をするようにしたことを特徴とする
スイツチ素子。 Operational amplifier 4 in housing 1 of semi-fixed resistor
By applying the drive voltage Vd of the operational amplifier 4 between the terminals t1 and t4 and the input voltage Vin to the terminal t2, and adjusting the semi-fixed resistor 2, , by operating the comparator circuit 3, the LED 5 and the transistor 6 are turned on.
A switch element characterized in that it performs a /OFF operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3193790U JPH03123325U (en) | 1990-03-29 | 1990-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3193790U JPH03123325U (en) | 1990-03-29 | 1990-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03123325U true JPH03123325U (en) | 1991-12-16 |
Family
ID=31534751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3193790U Pending JPH03123325U (en) | 1990-03-29 | 1990-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03123325U (en) |
-
1990
- 1990-03-29 JP JP3193790U patent/JPH03123325U/ja active Pending
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