JPS6362903U - - Google Patents
Info
- Publication number
- JPS6362903U JPS6362903U JP15670986U JP15670986U JPS6362903U JP S6362903 U JPS6362903 U JP S6362903U JP 15670986 U JP15670986 U JP 15670986U JP 15670986 U JP15670986 U JP 15670986U JP S6362903 U JPS6362903 U JP S6362903U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- frequency
- compensation
- recording
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案の一実施例を示す回路図、第２
図は従来の記録増幅回路の一例を示す回路図、第
３図は従来の記録増幅器の補償を説明するための
電圧ー周波数特性図である。
１…記録増幅器、２…磁気ヘツド、５…バンド
パスフイルター、６…整流器、７…ドライバ増幅
器、８…電圧可変抵抗器、１３…補償用共振回路
。
Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing an embodiment of the present invention.
The figure is a circuit diagram showing an example of a conventional recording amplifier circuit, and FIG. 3 is a voltage-frequency characteristic diagram for explaining compensation of the conventional recording amplifier. DESCRIPTION OF SYMBOLS 1... Recording amplifier, 2... Magnetic head, 5... Bandpass filter, 6... Rectifier, 7... Driver amplifier, 8... Voltage variable resistor, 13... Compensation resonance circuit.
Claims (1)
記録増幅器と、前記記録増幅器の入力信号周波数
が所定周波数以上のとき前記増幅器の利得を増大
させて高域補償を行なう補償回路とを有する磁気
記録装置の記録増幅回路において、 前記記録増幅器の出力信号から前記補償回路の
被補償周波数と同一周波数の信号のみを通過させ
るバンドパスフイルターと、 前記バンドパスフイルターの出力信号を整流す
る整流器と、 前記整流器の直流出力信号レベルが所定値以上
のとき前記補償回路の補償量を低減させるドライ
バ増幅器とを備えたことを特徴とする磁気記録装
置の記録増幅回路。[Claims for Utility Model Registration] A recording amplifier that amplifies a magnetic recording signal and supplies it to a magnetic head; and when the input signal frequency of the recording amplifier is equal to or higher than a predetermined frequency, the gain of the amplifier is increased to perform high frequency compensation. A recording amplifier circuit of a magnetic recording device having a compensation circuit, further comprising: a bandpass filter that passes only a signal having the same frequency as a compensated frequency of the compensation circuit from the output signal of the recording amplifier; and an output signal of the bandpass filter. A recording amplifier circuit for a magnetic recording device, comprising: a rectifier that rectifies; and a driver amplifier that reduces the amount of compensation of the compensation circuit when a DC output signal level of the rectifier is equal to or higher than a predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15670986U JPS6362903U (en) | 1986-10-15 | 1986-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15670986U JPS6362903U (en) | 1986-10-15 | 1986-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6362903U true JPS6362903U (en) | 1988-04-26 |
Family
ID=31078583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15670986U Pending JPS6362903U (en) | 1986-10-15 | 1986-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6362903U (en) |
-
1986
- 1986-10-15 JP JP15670986U patent/JPS6362903U/ja active Pending
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