JPS6463814A - Signal processor for electromagnetic pickup - Google Patents

Signal processor for electromagnetic pickup

Info

Publication number
JPS6463814A
JPS6463814A JP22136187A JP22136187A JPS6463814A JP S6463814 A JPS6463814 A JP S6463814A JP 22136187 A JP22136187 A JP 22136187A JP 22136187 A JP22136187 A JP 22136187A JP S6463814 A JPS6463814 A JP S6463814A
Authority
JP
Japan
Prior art keywords
reference voltage
voltage
main body
comparator
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
JP22136187A
Other languages
Japanese (ja)
Other versions
JPH0525286B2 (en
Inventor
Kunihiro Abe
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.)
Subaru Corp
Original Assignee
Fuji Heavy Industries 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 Fuji Heavy Industries Ltd filed Critical Fuji Heavy Industries Ltd
Priority to JP22136187A priority Critical patent/JPS6463814A/en
Publication of JPS6463814A publication Critical patent/JPS6463814A/en
Publication of JPH0525286B2 publication Critical patent/JPH0525286B2/ja
Granted legal-status Critical Current

Links

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  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE:To prevent the occurrence of a false operation even when noise is mixed in an output voltage, by impressing a second reference voltage on a comparator during a period when the output voltage from the main body of a pickup exceeds a first reference voltage and thereafter falls down below the second reference voltage. CONSTITUTION:When the main body 13 of an engine is operated, an AC voltage signal VA from the main body 12a of a pickup is outputted to an input interface 14 of a signal processor 11 and inputted to an inverted input terminal of a comparator OP. Then, during a period when the output signal voltage VA exceeds a reference voltage VS of a first reference voltage generating means 15a and thereafter falls down below a reference voltage of a second reference voltage generating means 15b, this reference voltage is inpressed on a noninverted input terminal of the comparator OP. By this constitution, a noise margin is enlarged, and the occurrence of a false operation is prevented even when noise is mixed in the voltage signal VA.
JP22136187A 1987-09-03 1987-09-03 Signal processor for electromagnetic pickup Granted JPS6463814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22136187A JPS6463814A (en) 1987-09-03 1987-09-03 Signal processor for electromagnetic pickup

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22136187A JPS6463814A (en) 1987-09-03 1987-09-03 Signal processor for electromagnetic pickup

Publications (2)

Publication Number Publication Date
JPS6463814A true JPS6463814A (en) 1989-03-09
JPH0525286B2 JPH0525286B2 (en) 1993-04-12

Family

ID=16765587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22136187A Granted JPS6463814A (en) 1987-09-03 1987-09-03 Signal processor for electromagnetic pickup

Country Status (1)

Country Link
JP (1) JPS6463814A (en)

Also Published As

Publication number Publication date
JPH0525286B2 (en) 1993-04-12

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