JPS537280A - Rotation detecting circuit - Google Patents

Rotation detecting circuit

Info

Publication number
JPS537280A
JPS537280A JP8178976A JP8178976A JPS537280A JP S537280 A JPS537280 A JP S537280A JP 8178976 A JP8178976 A JP 8178976A JP 8178976 A JP8178976 A JP 8178976A JP S537280 A JPS537280 A JP S537280A
Authority
JP
Japan
Prior art keywords
detecting circuit
rotation detecting
revolutions
saw
voltage
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
JP8178976A
Other languages
Japanese (ja)
Inventor
Tomoyuki Okada
Seiji Suda
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8178976A priority Critical patent/JPS537280A/en
Publication of JPS537280A publication Critical patent/JPS537280A/en
Pending legal-status Critical Current

Links

Landscapes

  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

PURPOSE: To detect the number of revolutions in quick response and with high accuracy by establishing a saw-tooth waveform voltage for each spark signal of an internal combustion engine and by comparing the saw-tooth waveform voltage with a refe rence voltage which corresponds to the number of revolutions (or frequency) to be detected.
COPYRIGHT: (C)1978,JPO&Japio
JP8178976A 1976-07-08 1976-07-08 Rotation detecting circuit Pending JPS537280A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8178976A JPS537280A (en) 1976-07-08 1976-07-08 Rotation detecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8178976A JPS537280A (en) 1976-07-08 1976-07-08 Rotation detecting circuit

Publications (1)

Publication Number Publication Date
JPS537280A true JPS537280A (en) 1978-01-23

Family

ID=13756245

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8178976A Pending JPS537280A (en) 1976-07-08 1976-07-08 Rotation detecting circuit

Country Status (1)

Country Link
JP (1) JPS537280A (en)

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