JPS6467017A - Loop filter for servo circuit - Google Patents
Loop filter for servo circuitInfo
- Publication number
- JPS6467017A JPS6467017A JP22349187A JP22349187A JPS6467017A JP S6467017 A JPS6467017 A JP S6467017A JP 22349187 A JP22349187 A JP 22349187A JP 22349187 A JP22349187 A JP 22349187A JP S6467017 A JPS6467017 A JP S6467017A
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- capacitor
- terminal
- operational amplifier
- resistors
- 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.)
- Granted
Links
Landscapes
- Feedback Control In General (AREA)
- Networks Using Active Elements (AREA)
Abstract
PURPOSE:To prevent a phase lag by applying feedback from the output of an operational amplifier to an inventing input through a capacitor and two resistors connected in series, connecting a resistor and a capacitor between the two series resistors, furthermore, connecting one terminal of the resistor to the inverting input of the operational amplifier, and supplying a signal from the other terminal of the resistor. CONSTITUTION:The operational amplifier 1, a 1st capacitor 6 connected between the output of the operational amplifier 1 and the inverting input, and 1st and 2nd resistors 2, 3 connected in series and both terminals are connected n parallel with the 1st capacitor 6 are provided. The a 3rd resistor 4 and a 2nd capacitor 7 connected in series, whose one terminal is connected to the connecting point of 1st and 2nd resistors 2, 3 and the other terminal is connected to a low impedance, and a 4th resistor 5 whose one terminal is connected to the inverting input of the operational amplifier 1 are used. Thus, the loop filter of the servo circuit with less number of externally mounted components and pins of the IC and less phase lag is formed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62223491A JP2553584B2 (en) | 1987-09-07 | 1987-09-07 | Servo circuit loop filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62223491A JP2553584B2 (en) | 1987-09-07 | 1987-09-07 | Servo circuit loop filter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6467017A true JPS6467017A (en) | 1989-03-13 |
JP2553584B2 JP2553584B2 (en) | 1996-11-13 |
Family
ID=16798969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62223491A Expired - Fee Related JP2553584B2 (en) | 1987-09-07 | 1987-09-07 | Servo circuit loop filter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2553584B2 (en) |
-
1987
- 1987-09-07 JP JP62223491A patent/JP2553584B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2553584B2 (en) | 1996-11-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |