JPS58155624U - AC bias device for magnetic recording - Google Patents
AC bias device for magnetic recordingInfo
- Publication number
- JPS58155624U JPS58155624U JP5270782U JP5270782U JPS58155624U JP S58155624 U JPS58155624 U JP S58155624U JP 5270782 U JP5270782 U JP 5270782U JP 5270782 U JP5270782 U JP 5270782U JP S58155624 U JPS58155624 U JP S58155624U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic recording
- bias device
- capacitor
- resistor
- erasing head
- 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
- Digital Magnetic Recording (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の磁気録音用ＡＣ装置の回路図、第２図、
第３図は本考案の磁気録音用ＡＣバイアス装置の回路図
、第４図、第５図は特性の一例を示す図である。
１は消去ヘッド、２はコンデンサー、３はボリューム、
４，８は抵抗、５． ６． １１． １２はトランジス
タ、７は帰還回路、９は録音バイアス出力である。Figure 1 is a circuit diagram of a conventional magnetic recording AC device; Figure 2 is a circuit diagram of a conventional magnetic recording AC device;
FIG. 3 is a circuit diagram of the AC bias device for magnetic recording of the present invention, and FIGS. 4 and 5 are diagrams showing examples of characteristics. 1 is the erase head, 2 is the capacitor, 3 is the volume,
4 and 8 are resistances, 5. 6. 11. 12 is a transistor, 7 is a feedback circuit, and 9 is a recording bias output.
Claims (1)
路を負荷に持つ位相反転増幅器に前記抵抗器から帰還信
号を得て発振回路を構成し前記コンデンサーと消去ヘッ
ドの接続点から録音バイアス信号を得ることを特徴とす
る磁気録音用ＡＣバイアス装置。A feedback signal is obtained from the resistor to a phase inverting amplifier whose load is a series resonant circuit consisting of a capacitor, an erasing head, and a resistor to form an oscillation circuit, and a recording bias signal is obtained from a connection point between the capacitor and the erasing head. Characteristic AC bias device for magnetic recording.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5270782U JPS58155624U (en) | 1982-04-12 | 1982-04-12 | AC bias device for magnetic recording |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5270782U JPS58155624U (en) | 1982-04-12 | 1982-04-12 | AC bias device for magnetic recording |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58155624U true JPS58155624U (en) | 1983-10-18 |
Family
ID=30063407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5270782U Pending JPS58155624U (en) | 1982-04-12 | 1982-04-12 | AC bias device for magnetic recording |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58155624U (en) |
-
1982
- 1982-04-12 JP JP5270782U patent/JPS58155624U/en active Pending
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