Portescap in Motion

Dave Beckstoffer

Dave Beckstoffer is a Commercial Program Manager at Portescap

Recent Posts

Selecting the Optimum Motion Technology for your Application Series: Speed

Posted by Dave Beckstoffer   Jun 06, 2019   0 Comments

One of the first factors to consider in your new product development is the output speed requirement of the motion system.  How fast does the motor need to rotate to drive the mechanism in the application?  And are there various speeds that need to be accommodated?  There are some general guidelines that will help you narrow down the technologies to consider:

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Selecting the Optimum Motion Technology for Your Application

Posted by Dave Beckstoffer   Feb 15, 2019   0 Comments

As a design engineer, there is always excitement when you get to work on new product development. But when you get to the motion portion of the design, there are several technologies to consider, primarily Brushless DC, Coreless DC and Stepper. Which technology is best and where do you start? The challenge can be difficult as there are several factors to consider including output speed, torque, lifetime, mechanical envelope, noise, weight, cost and precision. It is not practical to analyze, purchase and test multiple technologies as this would be expensive and time consuming. Fortunately, there are guidelines that can assist in the initial review of the different technologies to narrow the selection.  

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Topics: Others

Learn More - Ultra EC Brushless DC Motors - Videos

Posted by Dave Beckstoffer   Jan 14, 2019   0 Comments

Portescap invites you to learn about the Ultra EC Brushless DC motors, which contain three optimizations to meet all application requirements. These two videos from Design World cover the 16ECP, balanced performance between torque and speed, and the 22ECS, optimized for speed and responsiveness.

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Topics: Others

Application Torque Range

Posted by Dave Beckstoffer   Dec 19, 2018   0 Comments

In our blog post DC Coreless Speed vs Torque Curves, we talked about how to read speed vs torque curves and the linear relationship of speed and torque for a DC motor.  When comparing speed vs torque curves for various motors, the range of torque required in the application should be identified to ensure a proper comparison.  The curves will show the torque capability of the motor over the entire speed range, but the application torque range is typically limited to a narrow band.

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Power Density Increases Performance

Posted by Dave Beckstoffer   Nov 06, 2018   0 Comments

Power density is the amount of power (time rate of energy transfer) generated per unit volume of the motor. The more powerful the motor in a smaller envelope, the higher the power density. Volume power density is an important consideration where space is constrained or where maximum output is needed in a fixed space. High power density enables miniaturization of applications and end devices or higher capability in current devices.

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DC Coreless Speed vs. Torque Curves

Posted by Dave Beckstoffer   Sep 19, 2018   0 Comments

When selecting a motor for your application, one piece of reference information that can be used to make your selection is the speed vs torque curve.

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The Additional Benefits of Partnership

Posted by Dave Beckstoffer   Aug 02, 2018   0 Comments

As discussed in our collaboration post, early engagement leads to customized motors that are optimized for your application, but additional benefits can be realized utilizing Portescap’s Engineering expertise. Discussions will focus on the motor solution but routinely extend to the sub-assembly where the motor will reside. These early meetings can resolve challenges an Engineer may face around material selection and additional mechanical components.

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Why Efficiency Is Important

Posted by Dave Beckstoffer   Jul 17, 2018   0 Comments

Motor efficiency is the ratio between power output, which is mechanical, and power input, which is electrical.  Losses exist in all motors due to friction, heat, and materials, to name a few factors, so minimizing these losses is critical for applications that run off a battery.  The higher the efficiency of the motor, the longer the battery life during operation which results in longer time between charging.

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Portescap Introduces New P532 Motor Series for Best-in-class Power Rate and Acceleration

Posted by Dave Beckstoffer   Dec 21, 2015   1 Comments

Portescap has recently introduced the P532 Series Disc Magnet Step Motor with encoder to deliver best-in-class motor acceleration and power rate and thus outperform the standard Brushless DC motor in a wide range of applications.

Stepper motors typically run at 2,000 RPM or less in an open loop, while brushless motors that can run at much higher speeds are typically used in closed loop applications. In the last few years, trend is to use a stepper motor in closed loop with a torque higher than a brushless motor system, because of its higher pole count. What we are typically looking at is the middle range of revolutions per minute [RPM] as a sweet spot for disc magnet motors. The sweet spot opens up in applications in the few thousand RPM range, where a closed loop disc magnet motor system can be more cost-effective than a brushless solution.

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Topics: Medical & Diagnostics, Instrumentation, Automation