As their names imply, DC brushed motors have brushes, which are used to commutate the motor to cause it to spin. Intermediate Development of this motor has been made possible due to the evolution of the semiconductor and peripheral device technologies. Wide 0000010564 00000 n AN885 DS00885A-page 2 2003 Microchip Technology Inc. Two of the most common DC electric motors in use today are brushed and brushless DC motors. A motor with windings in delta configuration gives low torque at low speed but can give higher top speed. What is the Brushless DC Motor market growth? The rotor is small and can respond quickly. Some designs use Hall effect sensors or a rotary encoder to directly measure the rotor's position. Universal motor The weight and efficiency advantages of brushless over brushed motors are more important to handheld, battery-powered tools than to large, stationary tools plugged into an AC outlet. Without brushes, the motors also have very low noise emissions. e Drivers Small Speed is stable during constant rotation. DC servo In various locations, more and more hydraulic systems are being replaced with motors. 0000011999 00000 n 0000019795 00000 n Hence, sometimes, the brushless DC motors are also referred to as EC motors. Also, traction motors for electric vehicles (EVs) are a promising area for brushless DC motors. In brushless DC motors, the permanent magnets are on the rotor, and the electromagnets are on the stator. "How Does a Brushless Electric Motor Work?" K A brushless DC motor is essentially flipped inside out, eliminating the need for brushes to flip the electromagnetic field. Because the coils do not move, there is no need for brushes and a commutator. Find many great new & used options and get the best deals for 36-48V 350W Electric Bicycle E-bike Scooter Brushless DC Motor Speed Controller at the best online prices at eBay! Mophorn 1800W Electric Brushless DC Motor Kit - 48V 4500rpm Brushless Motor with 33A Speed Controller and Throttle Grip Kit for Go Karts E-Bike Electric Throttle Motorcycle Scooter 4.0 (279) $10999$132.09 FREE delivery Apr 11 - 14 25KW MP 120100 KV80 Outrunner brushless Motor for Electric paramotor and Electric car, Electric Boat, etc. 0000021094 00000 n High Efficiency Outer Rotor Brushless DC Motor ECO-090-022-235-PA. 0000008533 00000 n This is automatic in a brushed motor due to the fixed geometry of the rotor shaft and brushes. In this type of motor, electrical current is passed through coils that are arranged within a fixed magnetic field. DC running through the wire winding creates the magnetic field, providing the power which runs the motor. Wide You can have a lot of electromagnets on the stator for more precise control. 0000003478 00000 n A brushless DC motor or BLDC is an electric motor powered by direct current and generates its motion without any brushes like in conventional DC Motors. 0000003437 00000 n 0000017874 00000 n 0000005594 00000 n Weve seen that BLDC motors offer high efficiency and controllability, and that they have a long operating life. [12] Most electric bicycles use brushless motors that are sometimes built into the wheel hub itself, with the stator fixed solidly to the axle and the magnets attached to and rotating with the wheel. The construction of a brushless motor system is typically similar to a permanent magnet synchronous motor (PMSM), but can also be a switched reluctance motor, or an induction (asynchronous) motor. While the brush DC motor uses a brush and commutator for current switching, the brushless DC motor uses a sensor and an electronic circuit for current switching. Due to their construction, they have good thermal characteristics and high energy efficiency. Electric Bicycle E . So how does a brushless motor pass current to the rotor coils? 0000007790 00000 n With a BLDC motor, it is the permanent magnet that rotates; rotation is achieved by changing the direction of the magnetic fields generated by the surrounding stationary coils. The article How Electric Motors Work explains how brushed motors work. High This system has all sorts of advantages: The only disadvantage of a brushless motor is its higher initial cost, but you can often recover that cost through the greater efficiency over the life of the motor. The important characteristics of a BLDC motor is its high efficiency. Narrow Small 2.3kW brushless DC motor controls continuously at maximum rotational torque. [2], Brushed DC motors were invented in the 19th century and are still common. Motors differ according to their power type (AC or DC) and their method for generating rotation (Figure 2). To go any further, the poles of the electromagnet must flip. All Rights Reserved. Electric toys The permanent magnets are stationary, so they are called the stator. 0000005290 00000 n With the electromagnets on the stator, they are very easy to cool. Small home appliances Controller software can be customized to the specific motor being used in the application, resulting in greater commutation efficiency. In particular, the brushless DC motor plays a leading role in function replacement where controllability is required and locations where parts are frequently used and thus long-life parts are required. In this session, we look at the advantages and applications of brushless DC motors. The rotor shown to the right is magnetized axially with alternating polarity. 15 December 2006. Because of their efficiency and longevity, they are widely used in devices that run continuously. One or both sets of magnets are electromagnets, made of a coil of wire wound around an iron core. Motors exchange electrical energy to mechanical energy. With the experience we have accumulated so far in small precision motors, we are aiming to become the world's No. In the brushless DC motor, the rotor, made of a permanent magnet, is driven by the magnetic force of the stator's winding circuit. You can search NIDEC Group company products by application, specifications, performance, and key words. Conveyors 0000015704 00000 n 0000014983 00000 n How does it work and whats it used for? ALLIED MOTION PREMOTEC. sl]Dn5{l&S#72Lu/BN1F*l&?( [_M$SQ!aJ{\V_Hh%pL Q]uMF[&u>( T7kRp]7|gg/+`AW)YW9fYHeChwg2is(S endstream endobj 1052 0 obj << /Type /FontDescriptor /Ascent 718 /CapHeight 718 /Descent -207 /Flags 32 /FontBBox [ -166 -225 1000 931 ] /FontName /Helvetica /ItalicAngle 0 /StemV 88 /XHeight 523 /StemH 88 >> endobj 1053 0 obj << /Type /Font /Subtype /Type1 /FirstChar 32 /LastChar 176 /Widths [ 278 278 355 556 556 889 667 191 333 333 389 584 278 333 278 278 556 556 556 556 556 556 556 556 556 556 278 278 584 584 584 556 1015 667 667 722 722 667 611 778 722 278 500 667 556 833 722 778 667 778 722 667 611 722 667 944 667 667 611 278 278 278 469 556 333 556 556 500 556 556 278 556 556 222 222 500 222 833 556 556 556 556 333 500 278 556 500 722 500 500 500 334 260 334 584 350 0 350 222 556 333 1000 556 556 333 1000 667 333 1000 350 611 350 350 222 222 333 333 350 556 1000 333 1000 500 333 944 350 500 667 278 333 556 556 556 556 260 556 333 737 370 556 584 333 737 333 400 ] /Encoding /WinAnsiEncoding /BaseFont /Helvetica /FontDescriptor 1052 0 R >> endobj 1054 0 obj 1085 endobj 1055 0 obj << /Filter /FlateDecode /Length 1054 0 R >> stream Brushless DC Motors Brushless direct current motors, abbreviated as BLDC motors, are - despite their name - three-phase current synchronous machines: the rotor follows a magnetic rotational field and the movement is synchronous to the AC voltage applied to the windings. 0000014204 00000 n It would be extremely unusual to find any other type of motor described as a brushless DC motor. In the past, these motors were often used in electric fans and washing machines. With synchronous motors, rotation is synchronous with the frequency of the supply current. Low speed, low power brushless motors are used in direct-drive turntables for gramophone records.[11]. *#W=AZ,U$9liv#Iz^5KH[W X' 3 WB@Uq|y9)5~;;8gkwY3=eX/Y ^l$Uj~NSpb~YWID*6>T/H? {\displaystyle K_{T}} This setup works and is simple and cheap to manufacture, but it has a lot of problems: With the advent of cheap computers and power transistors, it became possible to "turn the motor inside out" and eliminate the brushes. Working machines The commutator and brushes are the key components distinguishing the brushed DC motor from other motor types. This means for the same input power, a BLDC motor will convert more electrical power into mechanical power than a brushed . Both motor types may have a rotor position sensor for internal feedback. amkX$ i%) hn#=?` \&} endstream endobj 1081 0 obj 645 endobj 963 0 obj << /Type /Page /Parent 942 0 R /Resources 1049 0 R /Contents [ 1055 0 R 1057 0 R 1061 0 R 1063 0 R 1065 0 R 1067 0 R 1073 0 R 1075 0 R ] /CropBox [ 0 0 611 791 ] /Annots [ 1024 0 R 1025 0 R 1026 0 R 1027 0 R 1028 0 R 1029 0 R 1030 0 R ] /B [ 1031 0 R ] /Thumb 106 0 R /MediaBox [ 0 0 612 792 ] /Rotate 0 >> endobj 964 0 obj << /Count 12 /First 965 0 R /Last 966 0 R >> endobj 965 0 obj << /Title (+m\(g!) /Dest (t7"m) /Parent 964 0 R /Next 1013 0 R >> endobj 966 0 obj << /Title (FqFr&y?'l/!$) /Prev 967 0 R /Parent 964 0 R /A 968 0 R >> endobj 967 0 obj << /Title (M=DrOpU) /Dest (KVc,s) /Parent 964 0 R /Prev 969 0 R /First 970 0 R /Last 971 0 R /Count -14 /Next 966 0 R >> endobj 968 0 obj << /S /GoTo /D [ 94 0 R /FitH 718 ] >> endobj 969 0 obj << /Title ( 0uH CF& >^0xLErCNgKV\() /Dest (q+ p) /Parent 964 0 R /Prev 984 0 R /Next 967 0 R /First 985 0 R /Last 985 0 R /Count -1 >> endobj 970 0 obj << /Title ([PO) /Dest (]^EDZ) /Parent 967 0 R /Next 983 0 R >> endobj 971 0 obj << /Title (wB-) /Dest (dqf) /Parent 967 0 R /Prev 972 0 R >> endobj 972 0 obj << /Title (]0x\(y_) /Dest (IbB"w) /Parent 967 0 R /Prev 973 0 R /Next 971 0 R >> endobj 973 0 obj << /Title (6im) /Dest ("O1) /Parent 967 0 R /Prev 974 0 R /Next 972 0 R >> endobj 974 0 obj << /Title (,) /Dest (:iD*9`1) /Parent 967 0 R /Prev 975 0 R /Next 973 0 R >> endobj 975 0 obj << /Title (=Oh-) /Dest (z_/q) /Parent 967 0 R /Prev 976 0 R /Next 974 0 R >> endobj 976 0 obj << /Title (m;) /Dest (7LyX) /Parent 967 0 R /Prev 977 0 R /Next 975 0 R >> endobj 977 0 obj << /Title (uz09 4) /Dest (/.d*D) /Parent 967 0 R /Prev 978 0 R /Next 976 0 R >> endobj 978 0 obj << /Title () /Dest (h) /Parent 967 0 R /Prev 979 0 R /Next 977 0 R >> endobj 979 0 obj << /Title (q4,"P) /Dest (z`lAb) /Parent 967 0 R /Prev 980 0 R /Next 978 0 R >> endobj 980 0 obj << /Title (\)8) /Dest ('NT) /Parent 967 0 R /Prev 981 0 R /Next 979 0 R >> endobj 981 0 obj << /Title (\n) /Dest (bGKD-O) /Parent 967 0 R /Prev 982 0 R /Next 980 0 R >> endobj 982 0 obj << /Title (,mZS~) /Dest (s>) /Parent 967 0 R /Prev 983 0 R /Next 981 0 R >> endobj 983 0 obj << /Title (*W^[d:) /Dest (SJOxAD>) /Parent 967 0 R /Prev 970 0 R /Next 982 0 R >> endobj 984 0 obj << /Title (^n~) /Dest (J-"\)) /Parent 964 0 R /Prev 986 0 R /Next 969 0 R >> endobj 985 0 obj << /Title (PU{@R?lr\(F%\nIH%v1W/%:!A) /Dest (v%Jv) /Parent 969 0 R >> endobj 986 0 obj << /Title (6c=w\r+qe]V o{X) /Dest (%! A brushless DC motor, also known as a electronically commutated motor, is a type of electric motor that uses electronic commutation instead of brushes and a mechanical commutator, which are commonly found in traditional DC motors. In cars, they are often used for retracting, extending, and positioning electrically-powered side windows. Because a computer controls the motor instead of mechanical brushes, it's more precise. trailer << /Size 1082 /Info 941 0 R /Encrypt 958 0 R /Root 957 0 R /Prev 715594 /ID[<318e87ea4ef431bfd2106d4dbcb85f3d><69b1aa7bbedb0b26acb2e940e88779c8>] >> startxref 0 %%EOF 957 0 obj << /Type /Catalog /Pages 943 0 R /Metadata 955 0 R /Outlines 964 0 R /Threads 959 0 R /Names 962 0 R /OpenAction [ 963 0 R /XYZ null null null ] /PageMode /UseOutlines /JT 954 0 R /PageLabels 940 0 R >> endobj 958 0 obj << /Filter /Standard /R 2 /O (ZM#p'a_ U5L^_oVs) /U (^y#Mu jRZgE) /P -12 /V 1 /Length 40 >> endobj 959 0 obj [ 960 0 R 961 0 R ] endobj 960 0 obj << /I << /Title ()>> /F 1031 0 R >> endobj 961 0 obj << /I << /Title (|+M)>> /F 88 0 R >> endobj 962 0 obj << /Dests 938 0 R >> endobj 1080 0 obj << /S 537 /T 766 /O 833 /E 849 /L 865 /Filter /FlateDecode /Length 1081 0 R >> stream Response (See Figure. Brushless motors can be constructed in several different physical configurations. The brushes limit the maximum speed of the motor. Power to the coils is supplied through fixed conductive brushes that make contact with a rotating commutator; it is the rotation of the commutator that causes the reversal of the current through the coils. One big advantage is efficiency, as these motors can control continuously at maximum rotational force (torque). As the commutator rotates, it continually flips the direction of the current into the coils, reversing the coil polarities so that the coils maintain rightward rotation. The device that moves the fields based on the position of the rotor is called a commutator.[4][5][6]. 0000012727 00000 n Abrading & Polishing; Building & Grounds; Electrical & Lighting; . The application of brushless DC motors within industrial engineering primarily focuses on manufacturing engineering or industrial automation design. 0000007230 00000 n Choose from our selection of electric motors, DC electric gearmotors, and more. 0000028047 00000 n With induction motors, too, the rotation speed varies with frequency; but the movement is not synchronous. 50-60 Electrical noise, in particular, is the result of the strong sparks that tend to occur at the areas where the brushes pass over the gaps in the commutator. 0000013528 00000 n Position Detection Technology Zignear that realizes High-Precision Motor Control, Fundamental Technology for Innovative Motors, Solutions Centered on Brushless DC Motors, Traction Drives Noise Reduction Technology, The Advanced CAE Technology behind our Optimally Designed Modules and Units. Brushes eventually wear out, sometimes causing dangerous sparking, limiting the lifespan of a brushed motor. 0000006472 00000 n Short This is a very powerful, 3d-printed brushless DC electric motor. High speed brushless motor with 8000 rpm for sale online. 0000003275 00000 n Small or intermediate They are also being used to drive vacuum machines. Electrical Engineering Stack Exchange, "What is a BLDC Motor in a Washing Machine? 0000008616 00000 n A brushless DC motor (also known as a BLDC motor or BL motor) is an electronically commuted DC motor which does not have brushes. Larger brushless RC motors can reach upwards of 10 kilowatts (13hp) and 28,000r/min to power one-fifth-scale models. 1. Servomotors are used for mechanical displacement, positioning or precision motion control. With Solid State Commutation", AIEE paper I. CP62-1372, October 7, 1962, Learn how and when to remove this template message, heating, ventilation, and air conditioning, Control differences between ac induction motor and brushless dc motor? Extremely configurable; several shaft configurations and custom options available. iLZdCeq*p7v/]({TW[p)PF0@lW?.`!*t=ZWXCU4xzL Service life Buy a set of brushless dc gear motor online, power at 450W, 24V/36V/48V voltage can be selected, speed ratio up to 200:1, rated output torque 1.41 Nm, torque peak up to 4.3 Nm, rated speed 3000 rpm, a small brushless dc gear motor is ideal for use in electric vehicles. The outside rotor requires appropriate safety measures. A Brushless DC motor consists of the following components: Stator: The physical characteristics of the stator in a brushless DC motor mirror that of an . 0000017897 00000 n Reasonably priced 7000W outrunner sensored brushless DC motor, rotation speed 130KV, 17 N.m high torque, max. Brushless DC motors typically have an efficiency of 85-90%, while brushed motors are usually only 75-80% efficient. Their ability to deliver precision control makes them especially suited for multirotor drones, where the drones attitude is controlled by precisely controlling the rotational speed of each rotor. Brush DC motors A computer then charges the electromagnets in the stator to rotate the rotor a full 360-degrees. #' V\GhJ0i9n\;tR2&e:2$nd08TS3`4SKfri8X9T This in turn means that the motor's internals can be entirely enclosed and protected from dirt or other foreign matter. Virtually maintenance free; lubricated and sealed for life. As the rotor rotates, the commutator selects different windings and the directional current is applied to a given winding such that the rotor's magnetic field remains misaligned with the stator and creates a torque in one direction. View in Order History. Vector control (motor) Vector control, also called field-oriented control (FOC), is a variable-frequency drive (VFD) control method in which the stator currents of a three-phase AC or brushless DC electric motor are identified as two orthogonal components that can be visualized with a vector. The misalignment generates a torque that tries to realign the fields. Good price 300W DC worm gear motor works at 2000 rpm rated speed, selectable gear ratio from 7.5:1 to 100:1, rated torque at 0.96 Nm and peak torque at 2.88 Nm. The most significant reason to switch to a brushless motor is a reduction in power required to operate them versus a typical AC motor. 48V brushless motor is a 3 phase dc motor that has 3000 rpm rated speed, 7.3 Nm holding torque, and 60A rated current. When compared to other types of motor, the brushless DC motor has many advantages such as compact size, high output, low vibration, low noise, and long life. Long 0000014689 00000 n These motors provide a great amount of power to RC racers and, if paired with appropriate gearing and high-discharge lithium polymer (Li-Po) or lithium iron phosphate (LiFePO4) batteries, these cars can achieve speeds over 160 kilometres per hour (99mph). Dishwashers 0000009360 00000 n Magnets, copper wire, and ball-bearings are ordinary components. BLDC motors are also being used to spin hard disc drives, where their durability keeps the drives operating dependably over the long term, while their power efficiency contributes to energy reduction in an area where this is becoming increasingly important. 0000019819 00000 n DC (including driver)/Driver The segments are connected to conductor windings on the rotor. Printers SKU: ATO-BLDC-150R3. Automobile electric components 48V brushless motor is a 3 phase dc motor that has 3000 rpm rated speed, 0.32 Nm rated torque, 3000 rpm rated speed and 2.60A rated current. The low cost of these motors makes them suitable for many uses. There are two types of commonly used DC motors: Brushed motors, and brushless motors (or BLDC motors). When compared to other types of motor, the brushless DC motor has many advantages such as compact size, high output, low vibration, low noise, and long life. The rotor is large (the motion is slow). 0000015399 00000 n FIGURE 1: TRAPEZOIDAL BACK EMF FIGURE 2: SINUSOIDAL BACK EMF Phase A-B Phase B-C . Having the electromagnet in the center of the motor makes it harder to cool. 0000003372 00000 n In one case, a change in the control program resulted in a large jump in rotational speedan example of the superlative controllability offered by these motors. 0000013816 00000 n The energy used by AC motors to create the electromagnet decreases the efficiency of the AC motor in comparison to the DC motors. Why is a table saw quiet but a circular saw loud? A motor converts supplied electrical energy into mechanical energy. Whether it is an electric ride-on car (DC motor) or in a Tesla Roadster utilizing an AC induction motor with a copper rotor, electric motor technology is everywhere. Large Small brushless motor matched with a motor controller/gearbox is suitable for electric car applications. 0000029377 00000 n V Copyright 2023 Association for Advancing Automation, 900 Victors Way, Suite 140, Ann Arbor, Michigan, USA 48108, Website Design & Development by Amplify Industrial Marketing + Guidance, Certified Motion Control Professional (CMCP), A3 Robotic Grinding and Finishing Conference, Autonomous Mobile Robots and Logistics Conference, International Robot Safety Conference 2023, Virtual Robot Safety and Risk Assessment Training, Virtual (Live) Robot Safety for Collaborative Applications Training, Core Vision & Imaging Business Essentials, Beginners Guide to Motion Control & Motors, Motion Control Professional Certification (CMCP), Beginner's Guide to Artificial Intelligence, Download the A3 Artificial Intelligence Applications Whitepaper, Servo Motors vs. Stepper Motors in Motion Control: How to Choose the Right One for Your Application, Recent Trends in Motion Control and Industrial Motors, brushless DC motor suppliers and integrators, Unplugging the Future: Leveraging 5G to Interconnect the Factory Floor, How to Address Tradeoffs in Robot Performance, Manufacturing Labor: The Crisis Still Continues, Conversations on Edge AI: Seven Takeaways from A3s Intelligent Edge Webinar Series With Intel Corporation, Driving Sustainability and Profitability Through Digital Transformation, How Companies Can Use Open Standards to Drive Industrial Control Transformation. The current is switched by the sensor and electronic circuit. All rights reserved. Washing machines The second big advantagerelated to the firstis controllability. 0000015242 00000 n Brushless DC motor is also known as BLDC motor or BL Motor. The armature contains an electromagnet. Time Left: Ends in 17 hours. Their favorable power-to-weight ratios and wide range of available sizes have revolutionized the market for electric-powered model flight, displacing virtually all brushed electric motors, except for low powered inexpensive often toy grade aircraft. The BLDC motor has power-saving advantages relative to other motor types. Robots 0000007055 00000 n Ends At: 4/10/2023, 2:06:00 AM. Motion Control Online Marketing Team | 03/20/2018. 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BROWSE CATALOG. In brushed motors this is done with a rotary switch on the motor's shaft called a commutator. Language links are at the top of the page across from the title. Brushless DC motors are quiet, lighter and have much longer lifespans. The armature rotates, so it is called the rotor. We can expect to see BLDC motors used in a wider range of applications in the future. 0000005712 00000 n High Efficiency Low Noise 230V Brushless DC Motor ECI-084-038-230. ;n.v) /Parent 964 0 R /Prev 987 0 R /Next 984 0 R /First 988 0 R /Last 989 0 R /Count -3 >> endobj 987 0 obj << /Title (ZZj4%W@Qgb&GPT\(59) /Dest ( \r8) /Parent 964 0 R /Prev 991 0 R /Next 986 0 R /First 992 0 R /Last 993 0 R /Count -3 >> endobj 988 0 obj << /Title (]MV^-hJ\)r]) /Dest ([ [) /Parent 986 0 R /Next 990 0 R >> endobj 989 0 obj << /Title (AEM`EZe:1) /Dest () /Parent 986 0 R /Prev 990 0 R >> endobj 990 0 obj << /Title (1fVxT'j4Iuv9d) /Dest (7?\() /Parent 986 0 R /Prev 988 0 R /Next 989 0 R >> endobj 991 0 obj << /Title ($`:\\+R') /Dest (49u) /Parent 964 0 R /Prev 999 0 R /Next 987 0 R /First 1000 0 R /Last 1001 0 R /Count -2 >> endobj 992 0 obj << /Title (!\)uoEH5BCl\)\\9l) /Dest (use y) /Parent 987 0 R /Next 994 0 R /First 997 0 R /Last 998 0 R /Count -2 >> endobj 993 0 obj << /Title (bu\r;') /Dest (\)!I\\W) /Parent 987 0 R /Prev 994 0 R /First 995 0 R /Last 995 0 R /Count -1 >> endobj 994 0 obj << /Title (Rs\(s/'-{^e{) /Dest (GUbhX) /Parent 987 0 R /Prev 992 0 R /Next 993 0 R /First 996 0 R /Last 996 0 R /Count -1 >> endobj 995 0 obj << /Title (;\n=4$N2m&) /Dest (Crn5) /Parent 993 0 R >> endobj 996 0 obj << /Title (\nZ*=B) /Dest (j!ZJT) /Parent 994 0 R >> endobj 997 0 obj << /Title (">.lnBd) /Dest ( EJR) /Parent 992 0 R /Next 998 0 R >> endobj 998 0 obj << /Title (Og) /Dest (4n) /Parent 992 0 R /Prev 997 0 R >> endobj 999 0 obj << /Title (PX0n}E\r5:i=) /Dest (Ts21W) /Parent 964 0 R /Prev 1003 0 R /Next 991 0 R /First 1004 0 R /Last 1004 0 R /Count -1 >> endobj 1000 0 obj << /Title (Jk#J) /Dest (1kT1) /Parent 991 0 R /Next 1001 0 R >> endobj 1001 0 obj << /Title (7uS~9$bRvn*) /Dest (#hS,>s) /Parent 991 0 R /Prev 1000 0 R /First 1002 0 R /Last 1002 0 R /Count -1 >> endobj 1002 0 obj << /Title (dY}86pN6-'Hrf33dMu) /Dest ( Lu0) /Parent 1001 0 R >> endobj 1003 0 obj << /Title (Q`/\)Lq\\8tI\r\nako>) /Dest (> sQzU) /Parent 964 0 R /Prev 1010 0 R /Next 999 0 R /First 1011 0 R /Last 1012 0 R /Count -2 >> endobj 1004 0 obj << /Title (\nJCKSwR8H) /Dest (_:) /Parent 999 0 R /First 1005 0 R /Last 1006 0 R /Count -5 >> endobj 1005 0 obj << /Title (i=%K/X+tm#Ut#|Hsa$ \r|#ww_9 ^jF\ ) /Dest (TA\):S) /Parent 1004 0 R /Next 1009 0 R >> endobj 1006 0 obj << /Title (c+f1pcbI>mibzk1p\\w4JH? Brushless motors offer several advantages over brushed DC motors, including high torque to weight ratio, increased efficiency producing more torque per watt, increased reliability, reduced noise, longer lifetime by eliminating brush and commutator erosion, elimination of ionizing sparks from the commutator, and an overall reduction of electromagnetic interference (EMI).