By changing the motor drive from 120° square wave to 180° sine wave commutation, the current spikes during phase switching are fundamentally eliminated, reducing noise from 50.4 dB to 39.3 dB — a reduction of 10 dB — achieving significant noise suppression.

For electric wheelchair applications, Nidec has focused on improving low-speed, high-torque performance and optimizing energy efficiency, while maintaining or even reducing the motor's size and weight. This makes it better suited to meet the requirements of modern electric wheelchairs in terms of hill-climbing ability, driving range, and control precision.

The automatic door motor series consists of φ65 BLDC motors combined with WORM / inline planetary / right-angle planetary gearboxes, covering an output range of 60W to 260W. Key advantages include IP54 protection, long service life, high torque, short door-opening time, manual operation during power failure, and flexible configuration to suit different door types.

As the endpoint of the smart grid, smart electricity meters are seeing their automatic reclosing and remote on/off functions gradually become standard. Behind these seemingly simple operations lies a sophisticated micro-drive system providing essential support.

For the same brushless DC motor, this paper compares and analyzes its TI-TN curves at multiple voltages including 6V, 7.4V, 9V, and 12V, and provides an in-depth analysis of the correlation patterns among speed, current, and efficiency.

With a service life of thousands of hours, more stable speeds, and higher efficiency, brushless DC motors are the optimal solution for commercial clipper applications.

[Current Status]​ Currently, most medical infusion pumps, syringe pumps, and enteral feeding pumps still use PM stepper …

Brushless DC Motors: Low Inertia Advantages and Oscillation CausesThanks to the compact design of their permanent magnet…

By analyzing the characteristics of the fracture surface, the cause of the motor shaft failure can be deduced, enabling problem prevention and rectification.

Explore the various potential causes for the burnout of brushless DC motors with built-in drive circuits, ranging from electrical connections, power supply quality, control signals, and operational protocols to circuit design.

Although Nidec offers a wide range of model numbers, some of these actually share the same motor core. The different numbers are primarily due to variations in naming conventions.

Explanation on the susceptibility to oxidation and rust at the crimped edge of the motor housing.

The factors influencing the lifespan of a gear reducer constitute a systematic project. Its "inherent quality" determines the upper limit of its potential, while the "applied conditions" determine to what extent that potential is realized.

Adding a damping resistor in series with the capacitor in the drive circuit can significantly suppress surge voltage.

A low component-count, elegantly designed, and practical 24V pulse signal to 5V pulse signal interface circuit.

Structural diagrams of DC brushed motors and DC brushless motors, for study reference.