GB1048471A - Improvements in electric motors with brushless commutation - Google Patents
Improvements in electric motors with brushless commutationInfo
- Publication number
- GB1048471A GB1048471A GB2613661A GB2613661A GB1048471A GB 1048471 A GB1048471 A GB 1048471A GB 2613661 A GB2613661 A GB 2613661A GB 2613661 A GB2613661 A GB 2613661A GB 1048471 A GB1048471 A GB 1048471A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- illuminated
- transistors
- transistor
- slot
- 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
Links
Classifications
-
- 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
- H02K29/10—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using light effect devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Brushless Motors (AREA)
Abstract
1,048,471. Commutation arrangements for dynamo-electric machines. MINISTER OF AVIATION. Oct. 19, 1962 [July 19, 1961], No. 26136/61. Heading H2A. A motor having a permanent magnet rotor M has the stator field windings commutated by means of light-sensitive devices, e.g. phototransistors, sequentially excited from a light source through a rotating shutter. Pairs of photo-transistors R +, R - ; B+, B-; G +, G - ; are supported in radial pairs spaced 120 degrees apart around the axis of the machine with the positive ones illuminated through slot P and the negative ones through slot N. As the shaft rotates the stator windings of the motor are connected in turn to the positive or negative supply lines depending on which transistor is illuminated, or effectively disconnected when neither transistor is illuminated, thus producing a rotating field vector. The transistors may either switch the stator windings directly or be used to actuate further high power electronic switches depending on the size of the motor.-The motor is readily reversible. Reference has been directed by the Comptroller to Specification 973,797.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2613661A GB1048471A (en) | 1961-07-19 | 1961-07-19 | Improvements in electric motors with brushless commutation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2613661A GB1048471A (en) | 1961-07-19 | 1961-07-19 | Improvements in electric motors with brushless commutation |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1048471A true GB1048471A (en) | 1966-11-16 |
Family
ID=10238965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2613661A Expired GB1048471A (en) | 1961-07-19 | 1961-07-19 | Improvements in electric motors with brushless commutation |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1048471A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2454720A1 (en) * | 1979-04-17 | 1980-11-14 | Faulhaber Fritz | ELECTRONIC SWITCH FOR ELECTRIC MOTOR |
EP0043138A1 (en) * | 1980-07-02 | 1982-01-06 | Siemens Aktiengesellschaft | Electronic commutating device for direct current machines with several winding strands |
WO1987001247A1 (en) * | 1985-08-22 | 1987-02-26 | Gareth Jones | D.c. electric motor |
EP0221594A1 (en) * | 1985-10-15 | 1987-05-13 | Mavilor Systèmes S.A. | Motor with a direct-current supply |
FR2614480A1 (en) * | 1987-04-22 | 1988-10-28 | Lee I S | CONTINUOUS BIPOLAR DC MOTOR WITHOUT BRUSH |
EP0462340A1 (en) * | 1988-10-27 | 1991-12-27 | David J. Shlien | Direct current motor |
EP1116320A1 (en) * | 1998-09-22 | 2001-07-18 | Dah Yu Cheng | A synchronous machine with rotating brushes |
-
1961
- 1961-07-19 GB GB2613661A patent/GB1048471A/en not_active Expired
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2454720A1 (en) * | 1979-04-17 | 1980-11-14 | Faulhaber Fritz | ELECTRONIC SWITCH FOR ELECTRIC MOTOR |
EP0043138A1 (en) * | 1980-07-02 | 1982-01-06 | Siemens Aktiengesellschaft | Electronic commutating device for direct current machines with several winding strands |
WO1987001247A1 (en) * | 1985-08-22 | 1987-02-26 | Gareth Jones | D.c. electric motor |
JPS63500910A (en) * | 1985-08-22 | 1988-03-31 | ジヨ−ンズ ガレス | DC motor |
EP0221594A1 (en) * | 1985-10-15 | 1987-05-13 | Mavilor Systèmes S.A. | Motor with a direct-current supply |
FR2614480A1 (en) * | 1987-04-22 | 1988-10-28 | Lee I S | CONTINUOUS BIPOLAR DC MOTOR WITHOUT BRUSH |
GB2204197A (en) * | 1987-04-22 | 1988-11-02 | I Soo Lee | Electronically commutated motor |
GB2204197B (en) * | 1987-04-22 | 1991-05-08 | I Soo Lee | Multi-phase bipolar brushless d c motor |
BE1004032A3 (en) * | 1987-04-22 | 1992-09-15 | Lee I Soo | Engine multi bipolar dc brushless. |
EP0462340A1 (en) * | 1988-10-27 | 1991-12-27 | David J. Shlien | Direct current motor |
EP1116320A1 (en) * | 1998-09-22 | 2001-07-18 | Dah Yu Cheng | A synchronous machine with rotating brushes |
EP1116320A4 (en) * | 1998-09-22 | 2002-01-02 | Dah Yu Cheng | A synchronous machine with rotating brushes |
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