Karry Yu

BLDC Motor for Automatic Doors: Quiet, Efficient & Reliable

BLDC motors have become the preferred drive solution for modern automatic doors because they combine high efficiency, precise speed control, quiet operation, long service life, and minimal maintenance. Compared with brushed DC motors and AC induction motors, BLDC motors deliver smoother acceleration, higher torque density, and significantly lower operating noise, making them ideal for sliding […]

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Industry News

BLDC Motor Cooling Methods: Complete Engineering Guide

BLDC motors generate heat from copper losses, iron losses, bearing friction, and inverter switching losses. Effective cooling methods—including natural air cooling, forced-air cooling, liquid cooling, heat sinks, cooling fins, thermal interface materials, and intelligent thermal monitoring—help maintain winding temperatures below insulation limits, improve efficiency by reducing copper resistance, extend bearing life, and increase continuous torque

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Motor School

How to Wire a BLDC Motor Correctly?

Correctly wiring BLDC Motors requires matching the motor phases (U/V/W) to the controller outputs, connecting the Hall sensor signals correctly (if equipped), supplying the controller with the proper DC voltage, and configuring controller parameters according to the motor specifications. Incorrect wiring can cause reverse rotation, excessive current, poor efficiency, vibration, overheating, or permanent damage to

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Motor School

UNITED MOTION INC. Celebrates Greensky Power’s 10+ Year Collaboration with Austrian Customer OF

At UNITED MOTION INC., we believe that the strongest business relationships are built on trust, professionalism, and shared success. As the U.S. subsidiary of Greensky Power, we are proud to celebrate an important milestone in our parent company’s journey—a partnership that has flourished for more than a decade. Since 2015, Greensky Power has worked closely

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Company News

Sensorless vs Sensored BLDC Motors

Choosing between Sensorless vs Sensored BLDC Motors depends primarily on startup requirements, low-speed performance, positioning accuracy, and overall system cost. Sensorless BLDC motors estimate rotor position using back electromotive force, eliminating physical position sensors. They are simpler, lower in cost, highly reliable, and ideal for medium- to high-speed continuous operation. Sensored BLDC motors use Hall

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Motor School

How to Measure PMSM Motor Parameters?

Accurate PMSM motor parameter measurement is essential for motor control tuning, field-oriented control (FOC), efficiency optimization, and system commissioning. The most important parameters include stator resistance (Rs), d-axis and q-axis inductance (Ld/Lq), back EMF constant (Ke), flux linkage (ψPM), pole pairs (P), rotor inertia (J), and phase resistance balance. These parameters can be measured using

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Motor School

What is the Best Voltage for BLDC Motor?

Selecting the correct BLDC motor voltage is one of the most important engineering decisions in any motion control system because it directly influences motor efficiency, torque production, current consumption, wiring size, controller selection, thermal performance, and overall system reliability. While there is no single “best” voltage suitable for every application, the ideal voltage depends on

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Motor School

BLDC Motor Applications

A BLDC motor (Brushless DC Motor) is widely used in electric vehicles, industrial automation, robotics, medical equipment, HVAC systems, drones, power tools, AGVs, and smart home devices because it offers: High efficiency (85–95%) Long service life (typically over 20,000 operating hours) Precise speed and torque control Low maintenance Quiet operation High power density Compared with

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Industry News

Top 10 BLDC Motor Manufacturers

The world’s leading BLDC motor manufacturers combine advanced engineering, global manufacturing capabilities, and extensive customization services to support industries such as industrial automation, robotics, medical devices, electric vehicles, HVAC, and lawn & garden equipment. While companies like Nidec, maxon, Oriental Motor, and Kollmorgen are well known for precision motion control, manufacturers such as UNITED MOTION

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