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DC Motors

What’s the difference between cogging torque and torque ripple?

June 25, 2018 By Danielle Collins Leave a Comment

cogging torque

The basic operation of an electric motor relies on the interaction between the rotor’s permanent magnets and the stator’s energized windings. But even when the motor is not powered and no current is flowing though the windings, there is a magnetic attraction between the permanent magnets of the rotor and the ferromagnetic teeth of the […]

Filed Under: DC Motors, FAQs + basics, Featured, Stepper Motors

Allied Motion debuts Globe Line of mil-spec PMDC motors, planetary gearmotors

June 13, 2018 By Miles Budimir Leave a Comment

motors

Allied Motion Technologies announces the Globe line of mil-spec-qualified fractional horsepower PMDC motors and gear motors. These motors are available off-the-shelf or on short lead time through Allied’s QuickShip program. Modified versions – with specially machined mounting provisions, holding brakes, tachometers and/or encoders – are available within two to three weeks through Allied’s QuickMod program. […]

Filed Under: DC Motors, Featured, Gearmotors, Motors

External rotor motor basics: Design and applications

June 6, 2018 By Danielle Collins Leave a Comment

external rotor motor

Conventional brushless DC motors are constructed with a permanent magnet rotor located inside a wound stator. But one type of DC motor is designed with the rotor on the outside and the stator and housed inside the rotor. Permanent magnets are mounted on the inner diameter of the rotor housing (sometimes referred to as the […]

Filed Under: DC Motors, FAQs + basics, Featured

Brushless dc motors for industrial power tools: Comparison of options including slotless motor variations

June 5, 2018 By Lisa Eitel Leave a Comment

Industrial power tools have operating profiles that differ from those of most other motor-driven applications. That’s why motors that go into these tools need specialized designs. By Thomas Baile, Business Development Manager | Portescap Most electric-motor-driven designs demand torque for the entirety of their motion. In contrast, power tools for fastening, gripping, and cutting applications […]

Filed Under: Brushless Motors, DC Motors, Featured, Industrial Automation, Motion Casebook, Motors Tagged With: Portescap

How can a universal motor operate on either DC or AC supply?

May 15, 2018 By Danielle Collins Leave a Comment

A universal motor is a series-wound motor — meaning that the field and armature windings are connected in series — and is mechanically commutated with brushes and a commutator. Although its construction is very similar to a series-wound DC motor, a universal motor incorporates several modifications that allow it operate properly on either DC or AC […]

Filed Under: AC Motors, DC Motors, FAQs + basics, Featured, Motors

New autoclavable BLDC motor controller from Portescap

March 5, 2018 By Lisa Eitel Leave a Comment

Portescap now sells an autoclavable Brushless DC motor controller — the CNT1530 — for driving large bone orthopedic handpiece motors. The controller leverages Portescap’s market leading autoclavable design capability and surgical application expertise to provide a reliable, customizable setup to the orthopedic market. This new controller will help improve  surgical hand tool’s performance and reliability, […]

Filed Under: Controls, DC Motors, Industry News, Motors, Stand-Alone Controllers

Electric motors: Trends in stepper, battery-powered, and integrated motion designs 

March 2, 2018 By Lisa Eitel Leave a Comment

Updated November 2019 ⚙️ From induction motors in electric vehicles to tiny coreless dc motors in drug-delivery equipment, electric motors continue to proliferate.  Last year we saw consumer products, implantable medical devices, and automation of previously manual tasks spur the most innovation in motor design and use. This year those trends continue — and now […]

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Filed Under: Actuators, Brushless Motors, DC Motors, Featured, Linear Motion, Motors, Stepper Motors

ISL modification capabilities expands dc motor customization for OEM applications

January 14, 2018 By Lisa Eitel Leave a Comment

ISL Products Intl. has announced the expansion of its brush and brushless dc motor and gearmotor modification capabilities for dc motor customization — to meet the exact specifications of virtually every specialized OEM application. Newly enhanced engineering capabilities target a broad range of low-energy designs requiring high efficiency and extremely low current. In addition to […]

Filed Under: DC Motors, Featured, Industry News, Integrated Motion Systems Tagged With: islproducts

DC motors for an array of OEM applications, including low current, from ISL

January 11, 2018 By Miles Budimir Leave a Comment

motors

ISL Products International Ltd. has expanded its brush and brushless DC motor and gear motor modification capabilities to further meet the exact specifications of virtually every specialized OEM application. The newly enhanced engineering capabilities target a broad range of especially low-energy designs in which high efficiency and extremely low current are required. In addition to […]

Filed Under: Brushless Motors, DC Motors, Motors

Three things to consider when selecting a customized DC motor drive system

December 28, 2017 By Paul Heney Leave a Comment

(This is an unedited webinar transcript.) Today we will review the three things you need to understand when selecting a DC motor drive system. After completing this webinar, you will understand key characteristics of brushed and brushless DC motors, gearheads, and encoders. You will learn how to configure your customized system in a few simple […]

Filed Under: DC Motors

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