JPS616969U - Disc playback device stylus pressure circuit - Google Patents
Disc playback device stylus pressure circuitInfo
- Publication number
- JPS616969U JPS616969U JP8946684U JP8946684U JPS616969U JP S616969 U JPS616969 U JP S616969U JP 8946684 U JP8946684 U JP 8946684U JP 8946684 U JP8946684 U JP 8946684U JP S616969 U JPS616969 U JP S616969U
- Authority
- JP
- Japan
- Prior art keywords
- playback device
- disc playback
- stylus pressure
- pressure circuit
- coil
- 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
- Recording Measured Values (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
【図面の簡単な説明】
第１図は本考案に係るディスク再生装置の針圧回路を示
す回路図、第２図は再生針を駆動するアクチュエータの
概略構成図、第３図は従来の針圧回路を示す回路図であ
る。
１・・・電源供給端子、２・・・コンパレータ、３・・
・針圧コイル、ｍ・・・ツエナダイオード、Ｒ１， Ｒ
２， Ｒ３・・・抵抗、Ｌ・・・インダクタンス、Ｒし
・・・内部抵抗。[Brief Description of the Drawings] Fig. 1 is a circuit diagram showing a stylus pressure circuit of a disc playback device according to the present invention, Fig. 2 is a schematic configuration diagram of an actuator that drives a playback stylus, and Fig. 3 is a conventional stylus pressure circuit. FIG. 2 is a circuit diagram showing a circuit. 1...Power supply terminal, 2...Comparator, 3...
・Stylus pressure coil, m...Zena diode, R1, R
2, R3...resistance, L...inductance, R3...internal resistance.
Claims (1)
の針圧コイルと、針圧コイルに供給されるコイル電流を
検出するための負荷抵抗と、巣準電圧と前記負荷抵抗に
よる検出電圧を比較し前記針圧コイルにコイル電流を供
給するコンパレータとを具備して成るディスク再生装置
の針圧回路。A needle pressure coil for applying a vertically downward force to the reproduction needle by magnetic force, a load resistance for detecting the coil current supplied to the needle pressure coil, and a reference voltage and a voltage detected by the load resistance are compared. A stylus pressure circuit for a disc playback device, comprising: a comparator that supplies a coil current to the stylus pressure coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8946684U JPS616969U (en) | 1984-06-18 | 1984-06-18 | Disc playback device stylus pressure circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8946684U JPS616969U (en) | 1984-06-18 | 1984-06-18 | Disc playback device stylus pressure circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS616969U true JPS616969U (en) | 1986-01-16 |
Family
ID=30643572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8946684U Pending JPS616969U (en) | 1984-06-18 | 1984-06-18 | Disc playback device stylus pressure circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS616969U (en) |
-
1984
- 1984-06-18 JP JP8946684U patent/JPS616969U/en active Pending
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