Direct Drive Motors Technical Papers

Power Budgeting and Motor Sizing for Battery Applications

This paper will provide the equations needed to calculate input power, output power, motor power losses, and efficiency for properly...

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Motor Unit Conversions – What They Mean and How They are Used

In the world of motion control, units can vary significantly depending on drive type. The type of drive being used...

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Rust-Preventive Coating for Omni+ Series

The machined surfaces of Omni+ stators are protected with a rust-preventive coating before placing in desiccated, vacuum-sealed bags for shipping....

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What Motor Torque Constant to Use for Drive Type – Theory and Application

The motor theory described in this paper is based on a brushless motor (BLAC or permanent magnet synchronous machines) configuration...

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Why Motor Constant Matters in Thermally Limited Applications

Temperature is one of the many limiting factors in the motor selection process that can be easily overlooked. This paper...

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Comparison of Slotless and Slotted Motors

Permanent magnet brushless motors come in all shapes and sizes providing both rotary and linear motion. They are known for...

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A Method of Virtual Torque Sensing for Collaborative Robot Joints

This technical document explores the use of calibrated motor current and internal compliance in harmonic gearing to produce a virtual...

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Motor Sizing 101

This technical note addresses basic motor sizing with simple calculations that can be done to generally size any motor application.

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How to install a Frameless Motor – Installation & Design Guide

This document details the installation and integration of Celera Motion frameless kit motors into our customers’ applications.

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Servo Loop Bandwidth, Motor Sizing and Power Dissipation

This paper describes how servo loop bandwidth, motor sizing and power dissipation are all related.

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Sinusoidal Drive Operation with Brushless PM Motors

This technical paper explores the theory behind motor and drive interaction and more specifically provides focus on parameter conversions and...

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Low Inductance Motors – Achieving Optimal Motion System Performance

Advancements in the design of rotary and linear motors continue to reduce motor winding inductance.

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Servo Terminology

This tech notes describes many of the commonly used servo terms, giving the reader some useful insight when designing a...

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Performance Optimization Using Slotless Motors and PWM Drives

Smooth motion, meaning very low position and current loop error while at speed, is critical to system performance in many...

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