JPS5773842A - Engine rotational speed comparison circuit - Google Patents

Engine rotational speed comparison circuit

Info

Publication number
JPS5773842A
JPS5773842A JP14954080A JP14954080A JPS5773842A JP S5773842 A JPS5773842 A JP S5773842A JP 14954080 A JP14954080 A JP 14954080A JP 14954080 A JP14954080 A JP 14954080A JP S5773842 A JPS5773842 A JP S5773842A
Authority
JP
Japan
Prior art keywords
comparison circuit
pulse
output
circuit
speed comparison
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
JP14954080A
Other languages
Japanese (ja)
Inventor
Yoji Sato
Makoto Suzuki
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.)
Aisan Industry Co Ltd
Original Assignee
Aisan Industry Co 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 Aisan Industry Co Ltd filed Critical Aisan Industry Co Ltd
Priority to JP14954080A priority Critical patent/JPS5773842A/en
Publication of JPS5773842A publication Critical patent/JPS5773842A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE: To quickly respond to a rotary speed comparison circuit and remove ripple by producing wavelform shaping for engine igintion pulses and by detecting the magnitude relation between the reference pulse and the half deviated pulse.
CONSTITUTION: A pulse signal a for engine ignition enters a waveform shaping circuit 1 consisting of resistors R4 to R8, a capacitor C2, a diode D1, a transistor Tr1, and a Schmit trigger IC2. The output by after waveform shaping is input into a D type flip-flop IC3 used as a half devided circuit. The output from an output terminal Q rotates the polarity with the same increment like the ignition pulse. A monostable multivibrator IC4 outputs a reference pulse signal d, the magnitude of which is decided by a comparison circuit consisting of an AND circuits IC5 and IC6.
COPYRIGHT: (C)1982,JPO&Japio
JP14954080A 1980-10-24 1980-10-24 Engine rotational speed comparison circuit Pending JPS5773842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14954080A JPS5773842A (en) 1980-10-24 1980-10-24 Engine rotational speed comparison circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14954080A JPS5773842A (en) 1980-10-24 1980-10-24 Engine rotational speed comparison circuit

Publications (1)

Publication Number Publication Date
JPS5773842A true JPS5773842A (en) 1982-05-08

Family

ID=15477368

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14954080A Pending JPS5773842A (en) 1980-10-24 1980-10-24 Engine rotational speed comparison circuit

Country Status (1)

Country Link
JP (1) JPS5773842A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0711553U (en) * 1993-08-03 1995-02-21 メルシー株式会社 Mirror packaging
US5524588A (en) * 1994-04-15 1996-06-11 Briggs & Stratton Corporation Electronic speed governor
US5605130A (en) * 1994-04-15 1997-02-25 Briggs & Stratton Corporation Electronic governor having increased droop at lower selected speeds

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0711553U (en) * 1993-08-03 1995-02-21 メルシー株式会社 Mirror packaging
US5524588A (en) * 1994-04-15 1996-06-11 Briggs & Stratton Corporation Electronic speed governor
US5605130A (en) * 1994-04-15 1997-02-25 Briggs & Stratton Corporation Electronic governor having increased droop at lower selected speeds

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