JPS54118277A - Phase discriminating circuit - Google Patents

Phase discriminating circuit

Info

Publication number
JPS54118277A
JPS54118277A JP2480078A JP2480078A JPS54118277A JP S54118277 A JPS54118277 A JP S54118277A JP 2480078 A JP2480078 A JP 2480078A JP 2480078 A JP2480078 A JP 2480078A JP S54118277 A JPS54118277 A JP S54118277A
Authority
JP
Japan
Prior art keywords
input
circuit
waveform
rectangular wave
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
JP2480078A
Other languages
Japanese (ja)
Other versions
JPS577392B2 (en
Inventor
Teruo Nozawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2480078A priority Critical patent/JPS54118277A/en
Publication of JPS54118277A publication Critical patent/JPS54118277A/en
Publication of JPS577392B2 publication Critical patent/JPS577392B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measuring Phase Differences (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To eliminate malfunction in the event of no input to one side and ON/ OFF switching of input to the other side of two alternating current input signals, by feeding back the respective outputs of a pair of rectangular wave circuits to the other input sides.
CONSTITUTION: Since resistances 20, 21 inserted into feedback circuits 18, 19 are selected at values not influential to usual operating characteristic, normal operation is performed as far as two alternating current input signals are normal. Suppose signal of waveform V1 is applied to input terminal 1 while no input being given to terminal 2, output waveform V5 of rectangular wave circuit 5 is caused by the function of feedback circuit 18 to be completely in reverse phase to output waveform V4 of a rectangular wave circuit 4, so that output V9 of time limit circuit 9 becomes a continuous "1" signal. On the other hand, input V10 of time limit circuit 13 becomes a continuous "0" signal, so that a stable state without input such as waveform V3 may be obtained, thereby preventing malfunction.
COPYRIGHT: (C)1979,JPO&Japio
JP2480078A 1978-03-03 1978-03-03 Phase discriminating circuit Granted JPS54118277A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2480078A JPS54118277A (en) 1978-03-03 1978-03-03 Phase discriminating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2480078A JPS54118277A (en) 1978-03-03 1978-03-03 Phase discriminating circuit

Publications (2)

Publication Number Publication Date
JPS54118277A true JPS54118277A (en) 1979-09-13
JPS577392B2 JPS577392B2 (en) 1982-02-10

Family

ID=12148262

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2480078A Granted JPS54118277A (en) 1978-03-03 1978-03-03 Phase discriminating circuit

Country Status (1)

Country Link
JP (1) JPS54118277A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61123940U (en) * 1985-01-23 1986-08-04

Also Published As

Publication number Publication date
JPS577392B2 (en) 1982-02-10

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