JPS5563406A - Phase comparator in servo circuit - Google Patents

Phase comparator in servo circuit

Info

Publication number
JPS5563406A
JPS5563406A JP13678878A JP13678878A JPS5563406A JP S5563406 A JPS5563406 A JP S5563406A JP 13678878 A JP13678878 A JP 13678878A JP 13678878 A JP13678878 A JP 13678878A JP S5563406 A JPS5563406 A JP S5563406A
Authority
JP
Japan
Prior art keywords
signal
phase
circuit
wave
saw tooth
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
Application number
JP13678878A
Other languages
Japanese (ja)
Inventor
Yoshifumi Oosugi
Tomio Fukuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kokusai Denki Electric Inc
Original Assignee
Hitachi Denshi KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP13678878A priority Critical patent/JPS5563406A/en
Publication of JPS5563406A publication Critical patent/JPS5563406A/en
Pending legal-status Critical Current

Links

Landscapes

  • Feedback Control In General (AREA)
  • Control Of Velocity Or Acceleration (AREA)
  • Control Of Electric Motors In General (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE: To quickly perform phase synchronism for the servo circuit, by continuously changing the phase gain of the phase error signal in proportion to the phase difference between the servo system output signal and the reference signal with control signal.
CONSTITUTION: The saw tooth wave or trapezoid wave generating circuit 5 outputs the saw tooth wave 2 or trapezoid wave 6 with the constant current 3 inputted from the constant current source 2 when the servo system output signal 4 is inputted. The sampling generation circuit 9 produces the sampling pulse 10 with the input of the reference signal 8 and outputs it to the sampling hold circuit 7. The circuit 7 samples the saw tooth wave or trapezoid wave 6 with the sampling pulse 10 and holds it until the next pulse 10 comes to output the phase error signal 11 in proportion to the phase difference between the signals 4 and 8. Thus, the phase gain of the signal 11 can continously be changed with the control signal 1.
COPYRIGHT: (C)1980,JPO&Japio
JP13678878A 1978-11-08 1978-11-08 Phase comparator in servo circuit Pending JPS5563406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13678878A JPS5563406A (en) 1978-11-08 1978-11-08 Phase comparator in servo circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13678878A JPS5563406A (en) 1978-11-08 1978-11-08 Phase comparator in servo circuit

Publications (1)

Publication Number Publication Date
JPS5563406A true JPS5563406A (en) 1980-05-13

Family

ID=15183523

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13678878A Pending JPS5563406A (en) 1978-11-08 1978-11-08 Phase comparator in servo circuit

Country Status (1)

Country Link
JP (1) JPS5563406A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62247779A (en) * 1986-04-18 1987-10-28 Matsushita Electric Ind Co Ltd Motor control circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62247779A (en) * 1986-04-18 1987-10-28 Matsushita Electric Ind Co Ltd Motor control circuit

Similar Documents

Publication Publication Date Title
JPS6424686A (en) Time base correction device
GB1383873A (en) Square to sine converter
JPS5563406A (en) Phase comparator in servo circuit
SE8207325L (en) Digital Filter
JPS5379179A (en) Adjustor meter
JPS5387660A (en) Multi-channel digital-analogue converter unit
JPS5378725A (en) Process circuit for color video signal
JPS5614727A (en) Phase comparator of digital pll circuit
JPS54129810A (en) Reproduction circuit of bipolar code
JPS5787617A (en) Phase shift circuit
JPS5298418A (en) 2-value signal converter apparatus for analogue picture signal
JPS54122853A (en) Phase control system
JPS5394167A (en) Digital phase synchronous loop
JPS5236994A (en) Phase modulation circuit
JPS5571315A (en) Limit cycle reduction system of digital filter
JPS5647843A (en) Variable clock frequency computer
JPS52144221A (en) Ghost delection circuit system
JPS55158741A (en) Frequency-voltage converting circuit
JPS52130675A (en) Measuring apparatus for carrier wave signal power
JPS57190228A (en) Frequency analysis system
JPS5396764A (en) Generating method and apparatus for electron beam linear scanning signal
JPS5545208A (en) Phase detection circuit
JPS54139335A (en) Phase error correcting circuit of index signal
JPS57107689A (en) Sampling pulse correcting system
JPS5320847A (en) Automatic pulse phase shifter