JPS5984310A - Tape recorder - Google Patents
Tape recorderInfo
- Publication number
- JPS5984310A JPS5984310A JP19575582A JP19575582A JPS5984310A JP S5984310 A JPS5984310 A JP S5984310A JP 19575582 A JP19575582 A JP 19575582A JP 19575582 A JP19575582 A JP 19575582A JP S5984310 A JPS5984310 A JP S5984310A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- emitting diode
- light emitting
- recording head
- light emission
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
Landscapes
- Digital Magnetic Recording (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は直流バイアス録音のテープレコーダに関する。[Detailed description of the invention] Industrial applications The present invention relates to a DC bias recording tape recorder.
従来例の構成とその問題点
普及型のテープレコーダにおいては、回路構成が交流バ
イアス録音より簡単にでき、コストも安価となる直流バ
イアス方式が採用されている。Conventional configuration and its problems Popular tape recorders employ a DC bias system, which has a simpler circuit configuration and is less expensive than AC bias recording.
従来の直流バイアス録音の回路について説明する。第１
図は、従来の直流バイアス録音のテープレコーダの録音
回路例である。（１）は録音ヘッド、Ｒ１−Ｒ１１は抵
抗、Ｃ２〜Ｃ９はコンデンサ、Ｑ、・６．２は録音アン
プ用のトランジスタ、Ｄｌは直流バイアス電流安定化用
のバリスタ、Ｄ２は録音時にその録音動作を表示するた
めの発光ダイオード、を示ず。The conventional DC bias recording circuit will be explained. 1st
The figure shows an example of a recording circuit for a conventional DC bias recording tape recorder. (1) is the recording head, R1-R11 are resistors, C2-C9 are capacitors, Q, 6.2 are transistors for the recording amplifier, Dl is the varistor for stabilizing the DC bias current, and D2 is the recording operation during recording. Light emitting diode for display, not shown.
Ｓ１〜Ｓ２は連動する録音書生切替スイツヂであり、Ｐ
は再生側、Ｒは録音側を示し、図は録音側になっており
、バリスタＤ１、発光ダイ副−ドＤ２にそれぞれ電圧が
印加されている。バリスタＤ、には順方向に電圧が印加
され、Ｒ８でバリスタＤ１に流れる電流を適当な値に設
定すれば、バリスタＤ１の両端の電圧ＶＦは電源電圧ｖ
ｒｃ：ｃの多少の変動に対しても一定の値を示ず。こ・
れにＲ７を介して録音ヘッド（１）に安定した直流バイ
アス電流よりを供給する。S1 and S2 are interlocking audio recording switching switches, and P
indicates the reproduction side, and R indicates the recording side. The figure shows the recording side, and voltages are applied to the varistor D1 and the light emitting diode sub-domain D2, respectively. A voltage is applied to the varistor D in the forward direction, and if the current flowing through the varistor D1 is set to an appropriate value using R8, the voltage VF across the varistor D1 becomes the power supply voltage v.
rc: does not show a constant value even with slight variations in c. child·
A stable DC bias current is then supplied to the recording head (1) via R7.
従来の回路構成においては録音ベッド（１）に安定した
直流電圧を印加するために１個のバリスタＤ１を必要と
する欠点がある。The conventional circuit configuration has the disadvantage that one varistor D1 is required to apply a stable DC voltage to the recording bed (1).
発明の目的 本発明は回路構成を簡単にしコストダウンするにある。Purpose of invention The purpose of the present invention is to simplify the circuit configuration and reduce costs.
発明の構成
本発明は、録音ヘッドに録音アンプを接続し、一方、電
源をバリスタを介して前記録音ヘッドに接続し、発光ダ
イオードを設け、前記バリスタと前記発光ダイオードに
同時に電源電圧を印加するよう構成したテープレコーダ
において、前記ノ（リスクを除去し、前記録音ヘッドと
前記発光ダイオードを抵抗を介して接続したことを特徴
とする。Structure of the Invention The present invention connects a recording amplifier to a recording head, connects a power source to the recording head via a varistor, provides a light emitting diode, and applies a power supply voltage to the varistor and the light emitting diode at the same time. The constructed tape recorder is characterized in that the above-mentioned risk is eliminated and the recording head and the light emitting diode are connected via a resistor.
実施例の説明
第２図に本発明のテープレコーダの一実施例の録音の回
路図を示す。DESCRIPTION OF THE EMBODIMENTS FIG. 2 shows a recording circuit diagram of an embodiment of the tape recorder of the present invention.
図において第１図と同一符号は同一部品、同一部分を示
す。In the figures, the same symbols as in FIG. 1 indicate the same parts and parts.
Ｄ２２は発光ダイオード、Ｉ２５才録音アンプ（１）と
発光ダイオードＤ２２間に設けられた抵抗、Ｒ２３は電
源Ｖｃｃと発光ダイオードＤ２２間にスイッチＳ３を介
して接続された抵抗、を示す。D22 is a light emitting diode, a resistor is provided between the recording amplifier (1) and the light emitting diode D22, and R23 is a resistor connected between the power supply Vcc and the light emitting diode D22 via the switch S3.
Ｐは再生端、Ｒは録音端、を示す。P indicates the playback end, and R indicates the recording end.
本発明のテープレコーダの動作を説明する。The operation of the tape recorder of the present invention will be explained.
図は録音側を示す。Ｄ２２は録音時その動作を表示する
ための発光ダイオードであるが、抵抗Ｒ２３により発光
ダイオードＤ２２に適当な電流を流せば、発光ダイオー
ドＤ２２の両端の電圧ＶＦは、電源電圧ｖｃｃの多少の
変動に対してもほぼ一定の値となる。これにＲ２２を介
して録音ヘッド（１）に安定化された直流ベイアス電流
１Ｂを供給することができる。The figure shows the recording side. D22 is a light emitting diode for displaying its operation during recording, and if an appropriate current is passed through the light emitting diode D22 through the resistor R23, the voltage VF across the light emitting diode D22 will be adjusted to some extent depending on some fluctuations in the power supply voltage VCC. However, the value remains almost constant. In addition, a stabilized DC bias current 1B can be supplied to the recording head (1) via R22.
発明の効果
本発明の実施例では、発光ダイオードのＩＩＩＲ方向電
圧を安定化電圧として利用することにより、第１図従来
例で使用したバリスタを廃止でき、これにより、コスト
ダウンができ、より安価な普存型テープレコーダを実現
できる。本発明はバリスタと表示発光ダイオードを兼用
したもので発光ダイオードを使用して、録音表示器を追
加できることになり、普及型テープレコーダの機能向」
二にもなる。Effects of the Invention In the embodiment of the present invention, by using the IIIR direction voltage of the light emitting diode as a stabilizing voltage, the varistor used in the conventional example shown in FIG. A common type tape recorder can be realized. The present invention combines a varistor and an indicator light emitting diode, and by using the light emitting diode, a recording indicator can be added, improving the functionality of popular tape recorders.
It becomes two.
第１図は、従来例のチープレコータ゛の録音回路、第２
図は本発明のチープレコータ゛の一実施伊Ｉの録音回路
、である。
１；録音ヘッド Ｒ１−Ｒ２゜：抵抗 Ｒ２２、Ｒ２３
’抵抗０、〜Ｃ，ｌ：コンデンＪ−Ｄ２２’発光タ゛イ
オード Ｓ３：切換スイッチ １Ｂ：ノ（イアスを流Ｉ
Ｒ：録音人力 Ｖｃｃ ：電源 Ｐ：再生端Ｒ：録音端Figure 1 shows the recording circuit of a conventional cheap recorder, and the second
The figure shows a recording circuit of one embodiment of the cheap recorder of the present invention. 1; Recording head R1-R2゜: Resistance R22, R23
'Resistance 0, ~ C, l: Condenser J-D22' Light-emitting diode S3: Changeover switch 1B:
R: Recording power Vcc: Power supply P: Playback end R: Recording end
Claims (1)
素子を介して前記録音ヘッドに接続し、発光ダイオード
を設け、前記バリスタと前記発光ダイオードに同時に電
源電圧を印加するよう構成したテープレコーダにおいて
、前記バリスタを除去し、前記録音ヘッドと前記発光ダ
イオードを抵抗を介して接続したことを特徴とするテー
プレコーダ。In a tape recorder, a recording amplifier is connected to a recording head, a power source is connected to the recording head via a constant voltage element, a light emitting diode is provided, and a power supply voltage is applied to the varistor and the light emitting diode at the same time, A tape recorder characterized in that the varistor is removed and the recording head and the light emitting diode are connected via a resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19575582A JPS5984310A (en) | 1982-11-08 | 1982-11-08 | Tape recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19575582A JPS5984310A (en) | 1982-11-08 | 1982-11-08 | Tape recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5984310A true JPS5984310A (en) | 1984-05-16 |
Family
ID=16346418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19575582A Pending JPS5984310A (en) | 1982-11-08 | 1982-11-08 | Tape recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5984310A (en) |
-
1982
- 1982-11-08 JP JP19575582A patent/JPS5984310A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5984310A (en) | Tape recorder | |
| JPH0245249B2 (en) | TEEPUSHURUIJIDOKENSHUTSUKIRIKAESOCHI | |
| JPS61273191A (en) | Electronic governor | |
| JPH06188121A (en) | Solenoid drive circuit | |
| JPS6215849Y2 (en) | ||
| JPS604284Y2 (en) | Tape recorder recording and display device | |
| JPS6215871Y2 (en) | ||
| JPH0660337A (en) | Magneto-resistance element driving circuit | |
| JP2518981Y2 (en) | Display device | |
| JPS6238335Y2 (en) | ||
| SU1377902A2 (en) | Engine controller | |
| JPS6327354Y2 (en) | ||
| JPH0753121Y2 (en) | Writing circuit of floppy disk drive | |
| JPS6017029Y2 (en) | Light emitting diode drive device | |
| JPS59178606A (en) | Write circuit of magnetic recording device | |
| KR880000571Y1 (en) | Slide circuit of optical disc player | |
| JPH0430667Y2 (en) | ||
| JPS6363961B2 (en) | ||
| KR880002807Y1 (en) | Power automatic breaking circuit of video tape recorder | |
| JPH0351762Y2 (en) | ||
| JP2629199B2 (en) | Forward and reverse rotation device for DC motor | |
| JP2827913B2 (en) | Rotating head type magnetic recording / reproducing device | |
| JPH0744805A (en) | Driving circuit for magnetic head | |
| JPS6020935B2 (en) | switch circuit | |
| JPH0640365B2 (en) | Magnetic recording drive |