GB1021669A - Improvements in or relating to electric motors having brushless commutation - Google Patents

Improvements in or relating to electric motors having brushless commutation

Info

Publication number
GB1021669A
GB1021669A GB44417/62A GB4441762A GB1021669A GB 1021669 A GB1021669 A GB 1021669A GB 44417/62 A GB44417/62 A GB 44417/62A GB 4441762 A GB4441762 A GB 4441762A GB 1021669 A GB1021669 A GB 1021669A
Authority
GB
United Kingdom
Prior art keywords
windings
amplifiers
rotor
switches
stator
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
GB44417/62A
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.)
Black and Decker Corp
Original Assignee
Black and Decker Manufacturing Co
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 Black and Decker Manufacturing Co filed Critical Black and Decker Manufacturing Co
Publication of GB1021669A publication Critical patent/GB1021669A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/14—Electronic commutators
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Synchronous Machinery (AREA)

Abstract

1,021,669. Electric motors. BLACK & DECKER MANUFACTURING CO. Nov. 23, 1962 [Nov. 27, 1961], No. 44417/62. Heading H2A. Capacitive coupling means between the rotor 11 and stator of an electric motor 10 having brushless commutation controls the energization of stator windings 12a ... 12b in synchronism with the rotation of the rotor. The rotor is either permanently magnetized or provided with windings and slip-rings, and is mechanically coupled to an electrode 18 which rotates closely to stationary electrodes 19 ... 22 energized by an H.F. oscillator 28 via respective secondary coils 23 ... 26 of a transformer 27. Each pair of corresponding stationary electrodes and secondary coils form a respective tuned circuit which when the rotating electrode 18 passes undergoes two resonances creating in respective resistors 29 ... 32 gate voltages which control respective switches and amplifiers 14 ... 17 to sequentially energize the stator windings 12a &c. from a power supply means 13. In Fig. 2, not shown, the switches and amplifiers 14 ... 17 are disclosed as comprising each a power transistor 42 triggered by signals from a pulse shaping circuit comprising two further transistors 57, 58 of which the latter is connected across the respective resistor 29 ... 32. In the embodiments the switches and amplifiers 14 ... 17 are such that current flows in both directions in the stator windings 12a &c., but in Fig. 4 not shown the windings are duplicated and each carry current in only one direction.
GB44417/62A 1961-11-27 1962-11-23 Improvements in or relating to electric motors having brushless commutation Expired GB1021669A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK45293A DE1168549B (en) 1961-11-27 1961-11-27 Electrical machine with contactless commutation

Publications (1)

Publication Number Publication Date
GB1021669A true GB1021669A (en) 1966-03-09

Family

ID=7223790

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44417/62A Expired GB1021669A (en) 1961-11-27 1962-11-23 Improvements in or relating to electric motors having brushless commutation

Country Status (2)

Country Link
DE (1) DE1168549B (en)
GB (1) GB1021669A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013025270A1 (en) * 2011-08-16 2013-02-21 Wisconsin Alumni Research Foundation Wound field rotating machine with capacitive power transfer
US9479085B1 (en) 2012-09-15 2016-10-25 C-Motive Technologies Inc. Self-conforming plates for capacitive machines such as electrostatic motors and generators

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1277993B (en) * 1964-11-10 1968-09-19 Siemens Ag DC-fed miniature motor with electronic commutation device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1049788B (en) * 1959-01-29
DE1050812B (en) * 1954-03-04 1900-01-01
DE1105045B (en) * 1955-04-21 1961-04-20 Siemens Ag Device for controlling the speed of a two or more phase rotating field motor
GB794704A (en) * 1955-10-20 1958-05-07 Gasaccumulator Svenska Ab Alternating current motor
DE1109779B (en) * 1958-03-08 1961-06-29 Siemens Ag Two or more phase induction motor connected via a transistor arrangement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013025270A1 (en) * 2011-08-16 2013-02-21 Wisconsin Alumni Research Foundation Wound field rotating machine with capacitive power transfer
US8736137B2 (en) 2011-08-16 2014-05-27 Wisconsin Alumni Research Foundation Wound field rotating machine with capacitive power transfer
US9692279B2 (en) 2011-08-16 2017-06-27 Wisconsin Alumni Research Foundation Wound field rotating machine with capacitive power transfer
US9479085B1 (en) 2012-09-15 2016-10-25 C-Motive Technologies Inc. Self-conforming plates for capacitive machines such as electrostatic motors and generators

Also Published As

Publication number Publication date
DE1168549B (en) 1964-04-23

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