JPS5999209U - recording bias circuit - Google Patents
recording bias circuitInfo
- Publication number
- JPS5999209U JPS5999209U JP20018782U JP20018782U JPS5999209U JP S5999209 U JPS5999209 U JP S5999209U JP 20018782 U JP20018782 U JP 20018782U JP 20018782 U JP20018782 U JP 20018782U JP S5999209 U JPS5999209 U JP S5999209U
- Authority
- JP
- Japan
- Prior art keywords
- bias circuit
- recording
- recording bias
- bias
- high frequency
- 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
Landscapes
- Magnetic Heads (AREA)
- Digital Magnetic Recording (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は磁気ヘッドのインピーダンスのばらつきによる
録音再生レスポンス特性の実測データを示す曲線図、第
２図は磁気ヘッドのインピーダンスと最適バイアス値と
の相関およびバイアス発振器に要求される特性を示す曲
線図、第３図は第２図の関係を実現するパイ、アス発振
器と磁気ヘッドとの等価回路図、第４図は一実施例を示
す構成説明図、第５図は第４図を適用した場合の磁気ヘ
ッドのインピーダンスのばらつきによる録音再生レスポ
ンス特性の実測データを示す曲線図である。
２１・・・バイアス発振器、２２・・・高周波トランス
、 −２４・・・録音ヘッド、２３・・・録音増
幅器、Ｒ・・・抵抗。Figure 1 is a curve diagram showing measured data of recording and playback response characteristics due to variations in magnetic head impedance. Figure 2 is a curve diagram showing the correlation between magnetic head impedance and optimal bias value and the characteristics required of a bias oscillator. , Fig. 3 is an equivalent circuit diagram of a pi-ass oscillator and a magnetic head that realize the relationship shown in Fig. 2, Fig. 4 is a configuration explanatory diagram showing one embodiment, and Fig. 5 is a case where Fig. 4 is applied. FIG. 3 is a curve diagram showing actually measured data of recording/reproducing response characteristics due to variations in impedance of a magnetic head. 21... Bias oscillator, 22... High frequency transformer, -24... Recording head, 23... Recording amplifier, R... Resistor.
Claims (1)
および該抵抗に一次側が接続される高周波トランスを介
挿し、この高周波トランスの二次側から前記録音ヘッド
に対してバイアス電流を供給可能に構成したことを特徴
とする録音バイアス回路。A series resistor and a high frequency transformer whose primary side is connected to the resistor are inserted between the output end of the bias oscillator and the recording head, and a bias current can be supplied to the recording head from the secondary side of the high frequency transformer. A recording bias circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20018782U JPS5999209U (en) | 1982-12-24 | 1982-12-24 | recording bias circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20018782U JPS5999209U (en) | 1982-12-24 | 1982-12-24 | recording bias circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5999209U true JPS5999209U (en) | 1984-07-05 |
Family
ID=30425720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20018782U Pending JPS5999209U (en) | 1982-12-24 | 1982-12-24 | recording bias circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5999209U (en) |
-
1982
- 1982-12-24 JP JP20018782U patent/JPS5999209U/en active Pending
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