Brushless Type DC Catalog
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Pancake Resolvers >> Brush Type Motors >> BrushlessDCMotors (800) 777-3393 > UsersGuide. . . . . . . . . . . . . . . . . . . . 1AxsysIntroduction. . . . . . . . . . . . . 4 BrushlessDCMotors. . . . . . . . . . . . 5 Commutating Brushless DCMotors. . . . . . . . . . . . . . . . . . . . 9 Glossary. . . . . . . . . . . . . . . . . . . . . 23 Conversion Table. . . . . . . . . . . . . . 262Phase BrushlessMotorsSelection Guide byOutside Diameter . . . . . . . . . . . . 29 byPeakTorque . . . . . . . . . . . . . . . . . 293Phase BrushlessMotorsSelection Guide byOutside Diameter . . . . . . . . . ....

.010 DP7EQ. PLCS ON ј6.650 BSC1.800 MAX.1.59+.001-.000 .015 BLUGRNRED LEADWIRESARE #22 AWG TYPE "E",PER MIL-W-16878/4, 12" MIN. LG. Products 6.980+.000-.002LEADWIRES ARE #22 AWG TYPE "E",PER MIL-W-16878, 36" MIN. LG. #10-32 UNF-2BX.50 DP MIN.7EQ PLCS ON ؘ6.650 BSC+.006-.000.146 THRUC'BOREؘ.236 X .156 ROTATION: FIELD ROTATES CW WHEN VIEWED FROM LEAD SIDE WITH THE FOLLOWING SEQUENCE: WHITE/RED & WHITE/BLACK COMMON AND POSITIVE VOLTAGE APPLIED TO RED THEN BLACK. .325.048.010MTG. DIM. ј1.52 MIN. TYP..940+.001-.000+.000-.001ؘ2.3752.32 MAX. TYP. .500 MAX..23 3PhaseMotors Parameter > Parameter...

The gearlessDCmotor drive isideallysuited tohigh acceleration applicationsrequiring improved response for rapid start/stop actions. Applications Equipment Brushless DC Advantage Velocity Servos Disk Memory Spindle Drive Long Life,Low-EMI Video Tape Recorder High Speed,No Brush Debris Silicon Water Spinner High Speed,Long Life CAT Scanner Low-EMI,Low Audible Noise Infrared Imager High Speed,Low-EMI Artificial Hearts Long Life,No Brush Debris Cryogenic Compressor No Brush Debris Fuel Pump No ArchingNo Brush Debris Air Bearing Spindle No Brush DebrisHigh SpeedPosition Servos Space Vehicle...

Pancake Resolvers >> Brush Type Motors >> BrushlessDCMotors (800) 777-3393 > IA 0A IBRotor Position Electrical Degrees 0B A =ICos I > B =ISin The torque output of the motor is:T=T > 0A Torque withIA Const. A +T > B T=IK > T (Sin > 2 +Cos > 2 )T=IK > T 0B Torque withIB Const.I This analysis indicates that the sinusoidallydriven brushless motor has linear character- istics similar to a conventional DC motor and has minimum ripple torque.Three phrase winding can be connected in either wye or delta configuration.Excitation can be switch mode or sinusoidal drive.The switch mode drive is the most...

(800) 777-3393 Sensor Timing and Alignment Abrushless DC motor duplicates the per-formance characteristics of a DC motor only when its winding are properly com- mutated.Proper commutation involves the timing and sequence of stator winding excitation.Winding excitation must be timed to coincide with the rotor position that will produce optimum torque.The excitation sequence controls the polarity of generated torque,and therefore the direc- tion of rotation.Rotor position sensors provide the infor-mation necessary for proper commutation. Sensor output is decoded by the commuta- tion logic...

Hall Current Control AmplifierAMPV K1IC > _+VH _+ 10B0A 0B Differential Amplifiers K2VHDifferential Amplifiers >

Hall Current Control AmplifierAMPV K1IC > VV _+ _+ K3K3K3 Power Amplifiers AMPV >

+VS Direction ControlInput +VS +VSPROMorCustomI.C. Q1 Q2 Q3 +VS 0A 0B +VS 0C > CommutatingBrushlessDCMotors PWM INPUT FROMVELOCITY CONTROL CIRCUIT S1S2S3 Q4 Q5 Q6 CURRENTSENSEOUTPUT >

+VS +VSS +VSBCD TODECIMAL DECODER Q1Q4 > CommutatingBrushlessDCMotors Q7Q8 Q9Q10Q11 Q12 +VS 0A Q5 > MotorWindings +VS Q3Q6 PWM INPUT FROMVELOCITY CONTROL CIRCUIT S1S2S3 CURRENTSENSE OUTPUT Q2 >

The electricalequation is: > Pancake Resolvers >> Brush Type Motors >> V (800) 777-3393 BrushlessDCMotors Clamping zener diodes are used to protectthe power MOSFETS from over-voltage transients produced when the inductive winding are switched OFF. BrushlessServo Systems > NL The brushless DC motor,when properlycommutated,will exhibit the same per- formance characteristics as a brushcommu- tated DC motor,and for servo analysis the brushless motor can be represented by the same motor parameters.It can be modeled by the equivalent circuit of Figure 16.This model can be used to develop the...

Pancake Resolvers >> Brush Type Motors >> BrushlessDCMotors (800) 777-3393 > NL =V > LOSS = 0.5 oz-in,and the windingwill see a maximum temperature rise(ambient plus internal heating) of 25C.The minimum voltage available to themotor is:V > T /K > B Stall torque can be determined by substitut-ing =0 in (4)T > STALL =K > T V > T /R = IK > T The slopes of the parallel straight line speedtorque curves of Figure 17 can be expressed by:R/K > T(MIN) =Vs > (MIN) -2V > CE(MAX) =21.6 - 3.0=18.6 VThe maximum resistance of the winding including tolerance and temperature rise is: R > B K > T = > NL /T >...

Handling, Storage, Installation > Pancake Resolvers >> Brush Type Motors >> The motors in this Source Book are alldesigned with rare earth magnets and require careful handling.These magnets have very strong attractions to magnetic materials. Without cautious handling,injury could occur.When motors are stored in their originalshipping container,they are well protected for normal storage conditions.Those motors that are housed have permanently lubricated bearings and do not require changing the bearings unless storage packaging has been damaged.The device should be closely inspected to see if...

(800) 777-3393 > Pancake Resolvers >> Brush Type Motors >> BrushlessDCMotors Mounting The information given oneach data page are user requirements forcorrect axial and concentric orientation of the motor components.It is required to preserve the specified performance characteristics. phase in a brushless motor.The polepositions for each phase are angularly dis- placed from one another so that a moving magnetic field may be set up in a stationary component. Phase ֖Amotor winding which will setup magnetic poles in a specific position inthe motor when a current is flowing in the winding.There...