JPS5694828A - Phase difference detecting circuit - Google Patents

Phase difference detecting circuit

Info

Publication number
JPS5694828A
JPS5694828A JP17102079A JP17102079A JPS5694828A JP S5694828 A JPS5694828 A JP S5694828A JP 17102079 A JP17102079 A JP 17102079A JP 17102079 A JP17102079 A JP 17102079A JP S5694828 A JPS5694828 A JP S5694828A
Authority
JP
Japan
Prior art keywords
signal
phase difference
measured
signals
reference signal
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
Application number
JP17102079A
Other languages
Japanese (ja)
Other versions
JPH0122774B2 (en
Inventor
Akira Miyauchi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP17102079A priority Critical patent/JPS5694828A/en
Publication of JPS5694828A publication Critical patent/JPS5694828A/en
Publication of JPH0122774B2 publication Critical patent/JPH0122774B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
    • G01R25/005—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller, or for passing one of the input signals as output signal

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manipulation Of Pulses (AREA)
  • Measuring Phase Differences (AREA)

Abstract

PURPOSE:To ensure a highly accurate detection for the phase difference, by having a process in which the phase difference between the reference signal and the signal to be measured is once increased double. CONSTITUTION:The reference signal 1 and the signal 2 to be measured are put into the monostable multivibrators 3 and 4 respectively and then branched into two parts after a shaping process to obtain the signals (a)-(d). The signals (b) and (d) of one side each are put into the 1st and 2nd delay circuits 5 and 6 having the same delay time to obtain the delayed signals (e) and (f). Then the shaping reference signal (a) and the delayed signal (f) to be measured are set to one pair; and the shaping signal (c) to be measured and the delayed reference signal (e) are set to the other pair. These pairs are then put into the 1st and 2nd set/reset flip-flop circuits 7 and 8, and the outputs (g) and (h) signals of the circuits 7 and 8 each are put into the integral networks 9 and 10 to be integrated. A subtraction is given to each value of integration through the subtractor circuit 11, and thus the output showing the phase difference is obtained by the value of the above subtraction.
JP17102079A 1979-12-28 1979-12-28 Phase difference detecting circuit Granted JPS5694828A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17102079A JPS5694828A (en) 1979-12-28 1979-12-28 Phase difference detecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17102079A JPS5694828A (en) 1979-12-28 1979-12-28 Phase difference detecting circuit

Publications (2)

Publication Number Publication Date
JPS5694828A true JPS5694828A (en) 1981-07-31
JPH0122774B2 JPH0122774B2 (en) 1989-04-27

Family

ID=15915594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17102079A Granted JPS5694828A (en) 1979-12-28 1979-12-28 Phase difference detecting circuit

Country Status (1)

Country Link
JP (1) JPS5694828A (en)

Also Published As

Publication number Publication date
JPH0122774B2 (en) 1989-04-27

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