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  • DC Linear Actuators vs DC Linear Motors
    Factory automation and robotic application engineers are often faced with the challenge of requiring fast, accurate and powerful linear actuation within a small allocated volume. The two most commonly available technologies are rotary DC motor driven actuators and linear DC motor actuators
  • PM DC Motors
    conventional unit. The typical range of torque for both brush-type and brushless dc motors is from 7.0 oz-in. to 4,500 lb-ft. Rare-earth magnets have little rotor inertia because they are light and have small radial dimensions. Flux density is also high. The torque-to-inertia ratio for rare-earth
  • Brushless DC Motors
    finishes. Because they have no commutator, brushless motors are more efficient, need less maintenance, and can operate at higher speeds than conventional dc motors. High efficiency and small size are especially important for military, aircraft, and
  • China ups the motor ante
    China's motor manufacturers are well versed in small, standard motors. Now they're setting their sights on steppers and servos. Chinese manufacturers have been making motors for years. The majority of these have been small ac and dc units for electric tools, toys, and other high-volume applications
  • Mini footballers run on dc micromotors
    of action. Robot football is divided into several categories: small, midsized, four-legged, and humanoid. A German team built and managed by the computing faculty from FU Berlin placed first in the small-size category. Their strong performance depended on batteries and small robust dc
  • Determining MOSFET Driver Needs for Motor Drive Applications
    driver is normally in the form of a power transistor. This can be a bipolar transistor, MOSFET or an Insulated Gate Bipolar Transistor (IGBT). In some small Brushless DC motor or stepper motor applications, the MOSFET driver can be used to directly drive the motor. For this application note, though
  • Snake-oil specs spell trouble for motor sizing
    , and simulates foldback circuits to ensure that the motor and amplifier combination considers the amplifier's time constant. When sizing and selecting small dc motors, various approaches can be used to determine electrical ratings and motor constants. Picking the wrong approach or using the wrong
  • Using Inverter Technology in the Motor Fusing Industry (.pdf)
    Commutator fusing was developed in the early 1950's as a method of manufacturing small universal or DC electric motors. The early process of attaching wires to the commutator required dipping the commutator into a solder bath, and hand soldering the connections. This two-step process was not only

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