JPS63131025U - - Google Patents
Info
- Publication number
- JPS63131025U JPS63131025U JP2442187U JP2442187U JPS63131025U JP S63131025 U JPS63131025 U JP S63131025U JP 2442187 U JP2442187 U JP 2442187U JP 2442187 U JP2442187 U JP 2442187U JP S63131025 U JPS63131025 U JP S63131025U
- Authority
- JP
- Japan
- Prior art keywords
- control signal
- segment
- output terminal
- signal output
- terminal
- 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 2
Landscapes
- Keying Circuit Devices (AREA)
- Input From Keyboards Or The Like (AREA)
Description
第1図は本考案を実施したリレー駆動回路を示
す回路構成図、第2図は従来のリレー駆動回路を
示す回路構成図である。
1…マイクロコンピユータ、3…LED表示器
、4…リレー、O1〜O8…第1制御信号出力端
子、P1,P2…第2制御信号出力端子、C1,
C2…コモン端子、S1〜S8…セグメント端子
、Q1,Q2…ドライブトランジスタ。
FIG. 1 is a circuit diagram showing a relay drive circuit embodying the present invention, and FIG. 2 is a circuit diagram showing a conventional relay drive circuit. DESCRIPTION OF SYMBOLS 1...Microcomputer, 3...LED display, 4...Relay, O1 - O8 ...1st control signal output terminal, P1 , P2 ...2nd control signal output terminal, C1 ,
C2 ...common terminal, S1 - S8 ...segment terminal, Q1 , Q2 ...drive transistor.
Claims (1)
ロコンピユータと、このマイクロコンピユータの
第1の制御信号出力端子からのセグメント制御信
号がセグメント端子に与えられるとともに、前記
第2の制御信号出力端子からの制御信号がドライ
ブトランジスタを介してコモン端子に与えられる
ことによつて駆動されるLED表示器と、前記ド
ライブトランジスタに動作電源を供給するライン
に設けられたリレーとからなるリレー駆動回路。 A microcomputer is provided with a first control signal output terminal and a second control signal output terminal, and a segment control signal is applied to the segment terminal from the first control signal output terminal of the microcomputer, and a segment control signal is provided to the segment terminal from the second control signal output terminal. A relay drive circuit comprising an LED display driven by a control signal applied to a common terminal via a drive transistor, and a relay provided in a line that supplies operating power to the drive transistor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2442187U JPS63131025U (en) | 1987-02-20 | 1987-02-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2442187U JPS63131025U (en) | 1987-02-20 | 1987-02-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63131025U true JPS63131025U (en) | 1988-08-26 |
Family
ID=30823633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2442187U Pending JPS63131025U (en) | 1987-02-20 | 1987-02-20 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63131025U (en) |
-
1987
- 1987-02-20 JP JP2442187U patent/JPS63131025U/ja active Pending