JPS5730144A - Disk motor driving circuit for video disk player - Google Patents
Disk motor driving circuit for video disk playerInfo
- Publication number
- JPS5730144A JPS5730144A JP10251980A JP10251980A JPS5730144A JP S5730144 A JPS5730144 A JP S5730144A JP 10251980 A JP10251980 A JP 10251980A JP 10251980 A JP10251980 A JP 10251980A JP S5730144 A JPS5730144 A JP S5730144A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- frequency
- pickup
- comparator
- resistance
- 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
Abstract
PURPOSE: To shorten the setting time of a motor driving circuit by determining voltage for a speed control loop corresponding to the position of a pickup.
CONSTITUTION: The slider of a resistance 4 coupled mechanically with a pickup 3 is connected to the connection point between the resistance 4 and a resistance 5, and a potential at this point is sent as a reference voltage to a control circuit. The reference voltage is compared with a feedback voltage by a comparator 7 and inputted via a servo amplifier 8 to a motor 9, whose output is inputted to a frequency generator 10 and a frequency-voltage converter 11. Its output is added by an adder 12 to the error voltage of a phase control system consisting of a reference frequency voltage phase 15, a comparator 16, a synchronizing signal 13, and a transfer function 14, and the sum is the feedback voltage of the comparator 7. The voltage of the slider, the voltage of a battery 6 or the transfer function of the frequency generator 10 and frequency-voltage converter 11 are adjusted to obtain a desired turning speed without reference to the position of the pickup.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10251980A JPS5730144A (en) | 1980-07-28 | 1980-07-28 | Disk motor driving circuit for video disk player |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10251980A JPS5730144A (en) | 1980-07-28 | 1980-07-28 | Disk motor driving circuit for video disk player |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5730144A true JPS5730144A (en) | 1982-02-18 |
Family
ID=14329590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10251980A Pending JPS5730144A (en) | 1980-07-28 | 1980-07-28 | Disk motor driving circuit for video disk player |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5730144A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6059567A (en) * | 1983-09-09 | 1985-04-05 | Sony Corp | Spindle servo mechanism having fixed linear velocity |
JPS6231068A (en) * | 1985-08-02 | 1987-02-10 | Mitsubishi Electric Corp | Speed controller for digital signal reproducing device |
-
1980
- 1980-07-28 JP JP10251980A patent/JPS5730144A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6059567A (en) * | 1983-09-09 | 1985-04-05 | Sony Corp | Spindle servo mechanism having fixed linear velocity |
JPH0527185B2 (en) * | 1983-09-09 | 1993-04-20 | Sony Corp | |
JPS6231068A (en) * | 1985-08-02 | 1987-02-10 | Mitsubishi Electric Corp | Speed controller for digital signal reproducing device |
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