JPS6054289U - Voltage detection circuit that also serves as recording level display - Google Patents
Voltage detection circuit that also serves as recording level displayInfo
- Publication number
- JPS6054289U JPS6054289U JP14561383U JP14561383U JPS6054289U JP S6054289 U JPS6054289 U JP S6054289U JP 14561383 U JP14561383 U JP 14561383U JP 14561383 U JP14561383 U JP 14561383U JP S6054289 U JPS6054289 U JP S6054289U
- Authority
- JP
- Japan
- Prior art keywords
- recording
- diode
- connection point
- serves
- detection circuit
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図示した回路は、本考案の録音レベル表示兼用電圧検知
回路である。
主な図番の説明、１・・・電池、２・・・録音信号入力
端子、３・・・駆動トランジスター、６・・・発光ダイ
オード、８・・・電源線路、９・・・第１抵抗、１０・
・・第２抵抗、１１・・・ダイオード、１２・・・制御
スイッチ。The illustrated circuit is a recording level display/voltage detection circuit of the present invention. Explanation of main figure numbers, 1...Battery, 2...Recording signal input terminal, 3...Drive transistor, 6...Light emitting diode, 8...Power line, 9...First resistor , 10・
...Second resistor, 11...Diode, 12...Control switch.
Claims (1)
子が接続されている駆動トランジスターと、電源線路と
接地間に直列接続された第１及び第２の抵抗と、該第１
抵抗と第２抵抗との接続点にアノードが接続されている
と共にカソードが前記駆動トランジスターのベースに接
続されているダイオードと、テープレコーダーの録音再
生切換操作に連動して切換えられると共に録音状態にあ
るとき前記接続点を接地する制御スイッチとより成り、
テープレコーダーが再生動作状態にあるとき前記接続点
より前記ダイオードを通して前記駆動トランジスターの
ベースに直流電圧を印加せしめ、以って前記発光素子の
点灯の有無により直流電源の電圧を表示しミ録音動作状
態にあるとき前記接続点を接地することにより前記ダイ
オードを録音信号の整流用として使用するようにしたこ
とを特徴とする録音レベル表示兼用電圧検知回路。a drive transistor having a base to which a recording signal is applied and a light emitting element connected to a collector; first and second resistors connected in series between a power supply line and ground;
a diode whose anode is connected to the connection point between the resistor and the second resistor and whose cathode is connected to the base of the drive transistor; the diode is switched in conjunction with the recording/playback switching operation of the tape recorder and is in a recording state; and a control switch that grounds the connection point when
When the tape recorder is in the playback mode, a DC voltage is applied from the connection point to the base of the driving transistor through the diode, and the voltage of the DC power source is indicated by whether or not the light emitting element is lit, thereby indicating the recording mode. 1. A voltage detection circuit that also serves as a recording level display, characterized in that when the connection point is grounded, the diode is used for rectifying a recording signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14561383U JPS6054289U (en) | 1983-09-19 | 1983-09-19 | Voltage detection circuit that also serves as recording level display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14561383U JPS6054289U (en) | 1983-09-19 | 1983-09-19 | Voltage detection circuit that also serves as recording level display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6054289U true JPS6054289U (en) | 1985-04-16 |
| JPH0316153Y2 JPH0316153Y2 (en) | 1991-04-08 |
Family
ID=30324369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14561383U Granted JPS6054289U (en) | 1983-09-19 | 1983-09-19 | Voltage detection circuit that also serves as recording level display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6054289U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52140318U (en) * | 1976-04-16 | 1977-10-24 |
-
1983
- 1983-09-19 JP JP14561383U patent/JPS6054289U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52140318U (en) * | 1976-04-16 | 1977-10-24 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0316153Y2 (en) | 1991-04-08 |
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