JPS566687A - Brushless motor - Google Patents

Brushless motor

Info

Publication number
JPS566687A
JPS566687A JP8169479A JP8169479A JPS566687A JP S566687 A JPS566687 A JP S566687A JP 8169479 A JP8169479 A JP 8169479A JP 8169479 A JP8169479 A JP 8169479A JP S566687 A JPS566687 A JP S566687A
Authority
JP
Japan
Prior art keywords
pole
generated
voltage
stator coils
coil
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
JP8169479A
Other languages
Japanese (ja)
Inventor
Makoto Goto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP8169479A priority Critical patent/JPS566687A/en
Publication of JPS566687A publication Critical patent/JPS566687A/en
Pending 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
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • 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
    • H02K29/14—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with speed sensing devices

Landscapes

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

Abstract

PURPOSE:To perform a correct speed control and to reduce the ripple of a generated torque by first forming one set or more of an N pole, an S pole and a nonmagnetic pole which give a practical effect on a rotor and then by changing an applied current in accordance with the generated voltage value at a stator coil. CONSTITUTION:On the surface of the internal circumference of a magnetic pole 5, an N pole, an S pole and a nonmagnetic pole having both poles are provided in equal angles and two-phase stator coils 8 and 9 are opposed. On the under surface of the magnetic pole, the N pole and the S pole only are provided in equal angles and are opposed to the Hall element 10 for position detection. On the control circuit of the stator coils 8 and 9, a diode for switching the power circuit and a detection device 12 for detecting a voltage generated at a coil when power is applied are provided. As the voltage generated at the stator coil is in proportion to the correct rotating speed of the rotor, the applied voltage for the stator coils 8 and 9 are controlled using this detected value.
JP8169479A 1979-06-28 1979-06-28 Brushless motor Pending JPS566687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8169479A JPS566687A (en) 1979-06-28 1979-06-28 Brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8169479A JPS566687A (en) 1979-06-28 1979-06-28 Brushless motor

Publications (1)

Publication Number Publication Date
JPS566687A true JPS566687A (en) 1981-01-23

Family

ID=13753466

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8169479A Pending JPS566687A (en) 1979-06-28 1979-06-28 Brushless motor

Country Status (1)

Country Link
JP (1) JPS566687A (en)

Similar Documents

Publication Publication Date Title
US3988654A (en) Miniature brushless motor
JPS5445712A (en) Motor
US5350987A (en) Detection of position of rotor in brushless DC motor
GB1419544A (en) Dc electric motors
US5537019A (en) Switched reluctance motor providing rotor position detection at high speeds without a separate rotor shaft position sensor
KR840000109A (en) DC circuit brush drive motor
US4950960A (en) Electronically commutated motor having an increased flat top width in its back EMF waveform, a rotatable assembly therefor, and methods of their operation
JPS55133659A (en) Dc motor
JPS566687A (en) Brushless motor
GB1529834A (en) Brushless direct current motors
JPS5934061B2 (en) Rotation speed detection device for brushless motors
JPS5532427A (en) Circuit for driving motor
JPS54121914A (en) Dc brushless motor
JPS5678368A (en) Hall motor
JPS5631366A (en) Direct current motor
JPS55114175A (en) Motor
JPS5681072A (en) Brushless dc motor
JPS5610092A (en) Brushless motor
JPS5658770A (en) Rotor for brushless motor
JPS57142563A (en) Rotating speed detection circuit for brushless motor
JPS5534802A (en) Dc brushless motor
JPS5588555A (en) Motor with electronic commutator
JPS5625365A (en) Two-phase winding type brushless direct current motor
JPS5549963A (en) Commutatorless dc motor
JPS56162963A (en) Commutatorless electric motor