JPS5484185A - Rectifying method for tachogenerator - Google Patents

Rectifying method for tachogenerator

Info

Publication number
JPS5484185A
JPS5484185A JP15201377A JP15201377A JPS5484185A JP S5484185 A JPS5484185 A JP S5484185A JP 15201377 A JP15201377 A JP 15201377A JP 15201377 A JP15201377 A JP 15201377A JP S5484185 A JPS5484185 A JP S5484185A
Authority
JP
Japan
Prior art keywords
tachogenerator
signal
counter
input terminal
added
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
JP15201377A
Other languages
Japanese (ja)
Other versions
JPS5857764B2 (en
Inventor
Jiro Chiba
Riichi Abe
Toshiaki Nakajima
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP52152013A priority Critical patent/JPS5857764B2/en
Publication of JPS5484185A publication Critical patent/JPS5484185A/en
Publication of JPS5857764B2 publication Critical patent/JPS5857764B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Electric Motors In General (AREA)
  • Feedback Control In General (AREA)
  • Control Of Position Or Direction (AREA)
  • Control Of Velocity Or Acceleration (AREA)

Abstract

PURPOSE: To reduce the temperature drift of a tachogenerator by rectifying the output signal of the tachogenerator so as to accord with the output speed signal of a digital differentiator which differentiates position signals in high speed above a predetermined speed.
CONSTITUTION: A signal D'V which is obtained by differentiating position information pulse Ds is converted to an analogue signal e''v, and the output signal ev of a tachogenerator 4 is amplified to e'v by an arithmetic amplifier 10. When Ie'VI > E is formed, an AND circuit ANDi is operated, and if e''v is larger than e'v, clock pulse CP is added to the up input terminal 16a of a counter 16, and if smaller, added to the down input terminal 16b. A decoder 12 switches resistances Ri - Rn is consecutive order whenever the contents of the counter 16 increases by unit increment or decreases by unit decrement, and the gain of the arithmetic amplifier is controlled.
COPYRIGHT: (C)1979,JPO&Japio
JP52152013A 1977-12-16 1977-12-16 How to correct the tachogenerator Expired JPS5857764B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52152013A JPS5857764B2 (en) 1977-12-16 1977-12-16 How to correct the tachogenerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52152013A JPS5857764B2 (en) 1977-12-16 1977-12-16 How to correct the tachogenerator

Publications (2)

Publication Number Publication Date
JPS5484185A true JPS5484185A (en) 1979-07-04
JPS5857764B2 JPS5857764B2 (en) 1983-12-21

Family

ID=15531145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52152013A Expired JPS5857764B2 (en) 1977-12-16 1977-12-16 How to correct the tachogenerator

Country Status (1)

Country Link
JP (1) JPS5857764B2 (en)

Also Published As

Publication number Publication date
JPS5857764B2 (en) 1983-12-21

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