GB1475791A - Control system for a brushless direct current motor - Google Patents

Control system for a brushless direct current motor

Info

Publication number
GB1475791A
GB1475791A GB2068274A GB2068274A GB1475791A GB 1475791 A GB1475791 A GB 1475791A GB 2068274 A GB2068274 A GB 2068274A GB 2068274 A GB2068274 A GB 2068274A GB 1475791 A GB1475791 A GB 1475791A
Authority
GB
United Kingdom
Prior art keywords
rotor
motor
sensed
speed
switched
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.)
Expired
Application number
GB2068274A
Other languages
English (en)
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.)
Union Special Corp
Original Assignee
Union Special Corp
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
Priority claimed from US00359870A external-priority patent/US3832613A/en
Application filed by Union Special Corp filed Critical Union Special Corp
Publication of GB1475791A publication Critical patent/GB1475791A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D05B69/22—Devices for stopping drive when sewing tools have reached a predetermined position
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/12—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using detecting coils using the machine windings as detecting coil

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Brushless Motors (AREA)
GB2068274A 1973-05-14 1974-05-10 Control system for a brushless direct current motor Expired GB1475791A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00359870A US3832613A (en) 1973-05-14 1973-05-14 Sewing machine motor and control circuit

Publications (1)

Publication Number Publication Date
GB1475791A true GB1475791A (en) 1977-06-10

Family

ID=23415631

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2068274A Expired GB1475791A (en) 1973-05-14 1974-05-10 Control system for a brushless direct current motor
GB340777A Expired GB1475792A (en) 1973-05-14 1974-05-10 Brushless direct current motor

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB340777A Expired GB1475792A (en) 1973-05-14 1974-05-10 Brushless direct current motor

Country Status (8)

Country Link
JP (1) JPS5523637B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1019423A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH586306A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2421589B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES425624A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2229796B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (2) GB1475791A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1013132B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8606390B2 (en) 2007-12-27 2013-12-10 Vsm Group Ab Sewing machine having a camera for forming images of a sewing area
US8683932B2 (en) 2007-08-30 2014-04-01 Vsm Group Ab Positioning of stitch data objects
US8925473B2 (en) 2007-11-09 2015-01-06 Vsm Group Ab Thread cut with variable thread consumption in a sewing machine
US8960112B2 (en) 2013-02-01 2015-02-24 Vsm Group Ab Stitching system and method for stitch stop embellishments
US8985038B2 (en) 2010-06-09 2015-03-24 Vsm Group Ab Feeder movement compensation

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS512019A (en) * 1974-06-22 1976-01-09 Iwatani & Co Ekikagasuyokikarano kitaigasutoridashisochi
JPS54102611A (en) * 1978-01-31 1979-08-13 Iwatani & Co Vaporizing method and apparatus for liquified gas with atmospheric heat as source
JPS596498A (ja) * 1982-06-30 1984-01-13 Kagura Seisakusho:Kk 大気熱を利用した液化ガス蒸発装置
JPS62266098A (ja) * 1986-11-18 1987-11-18 ブラザー工業株式会社 ミシンの駆動制御装置
JPS6365893A (ja) * 1987-04-17 1988-03-24 株式会社日立製作所 電動ミシンの制御方法
JPH0685606U (ja) * 1993-05-24 1994-12-13 恒 福村 ヘアードライヤー

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8683932B2 (en) 2007-08-30 2014-04-01 Vsm Group Ab Positioning of stitch data objects
US8925473B2 (en) 2007-11-09 2015-01-06 Vsm Group Ab Thread cut with variable thread consumption in a sewing machine
US8606390B2 (en) 2007-12-27 2013-12-10 Vsm Group Ab Sewing machine having a camera for forming images of a sewing area
US8985038B2 (en) 2010-06-09 2015-03-24 Vsm Group Ab Feeder movement compensation
US8960112B2 (en) 2013-02-01 2015-02-24 Vsm Group Ab Stitching system and method for stitch stop embellishments

Also Published As

Publication number Publication date
CH586306A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-03-31
DE2421589A1 (de) 1974-12-05
DE2421589B2 (de) 1977-12-29
IT1013132B (it) 1977-03-30
JPS5523637B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1980-06-24
GB1475792A (en) 1977-06-10
CA1019423A (en) 1977-10-18
ES425624A1 (es) 1976-06-16
AU6647874A (en) 1975-09-11
JPS5016009A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-02-20
FR2229796B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-10-14
FR2229796A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-12-13

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee