JPS5526064A - Commutatorless motor - Google Patents

Commutatorless motor

Info

Publication number
JPS5526064A
JPS5526064A JP9907478A JP9907478A JPS5526064A JP S5526064 A JPS5526064 A JP S5526064A JP 9907478 A JP9907478 A JP 9907478A JP 9907478 A JP9907478 A JP 9907478A JP S5526064 A JPS5526064 A JP S5526064A
Authority
JP
Japan
Prior art keywords
signal
comparator
signals
abnormality
position detection
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
JP9907478A
Other languages
Japanese (ja)
Inventor
Hiroshi Sugisaka
Takeshi Okuyama
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 JP9907478A priority Critical patent/JPS5526064A/en
Publication of JPS5526064A publication Critical patent/JPS5526064A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE: To surely and easily detect the abnormality of a position detection signal, by utilizing the signal of a speed transmitter.
CONSTITUTION: Switching circuits 102∼104 shift a speed signal SF and a polarity- inverted speed signal by position detection signals UD, VD, Wd. The output signals of the switching circuits 102∼104 are integrated by integration circuits 105∼107. The integrated signals are added to one another by an addition curcuit 108. An upper limit comparator 109 or a lower limit comparator 110 detects that the output of the addition circuit 108 rises above an upper limit or falls below a lower limit. An abnorality detection signal is supplied from the comparator to a protective logic 19 through an OR circuit 111. The abnormality can thus be surely detected through a simple construction.
COPYRIGHT: (C)1980,JPO&Japio
JP9907478A 1978-08-16 1978-08-16 Commutatorless motor Pending JPS5526064A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9907478A JPS5526064A (en) 1978-08-16 1978-08-16 Commutatorless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9907478A JPS5526064A (en) 1978-08-16 1978-08-16 Commutatorless motor

Publications (1)

Publication Number Publication Date
JPS5526064A true JPS5526064A (en) 1980-02-25

Family

ID=14237766

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9907478A Pending JPS5526064A (en) 1978-08-16 1978-08-16 Commutatorless motor

Country Status (1)

Country Link
JP (1) JPS5526064A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4633151A (en) * 1983-11-01 1986-12-30 Kollmorgen Technologies Corporation Series connected transistor protection circuit
US4642537A (en) * 1983-12-13 1987-02-10 General Electric Company Laundering apparatus
US4963800A (en) * 1988-06-14 1990-10-16 Mitsubishi Denki Kabushiki Kaisha Apparatus for controlling throttle actuator
JPH0410015U (en) * 1990-05-11 1992-01-28
JPH0421435U (en) * 1990-06-15 1992-02-24

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4633151A (en) * 1983-11-01 1986-12-30 Kollmorgen Technologies Corporation Series connected transistor protection circuit
US4642537A (en) * 1983-12-13 1987-02-10 General Electric Company Laundering apparatus
US4963800A (en) * 1988-06-14 1990-10-16 Mitsubishi Denki Kabushiki Kaisha Apparatus for controlling throttle actuator
JPH0410015U (en) * 1990-05-11 1992-01-28
JPH0421435U (en) * 1990-06-15 1992-02-24

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