Portescap in Motion

Selecting the Optimum Flat Motor Technologies For Your Application

Posted by Sunil Kumar   Jul 15, 2021   0 Comments

Selecting the Optimum Flat Motor Technologies For Your Application

Many applications today have critical space constraints and require flat motor solutions. However it is not always obvious what technology would work best in this type of situation while still being able to meet performance requirements. Typically, the speed-torque criteria can help provide a guide on what technology may be optimal for the given application. Let’s explore the various technologies available for flat motors depending on design requirements.

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Topics: miniature motors, Brush DC Motors, BLDC Motors

Motor Selection Tips: Understanding Thermal Parameters of DC Motors

Posted by Manoj Pujari   Jul 08, 2021   0 Comments

Motor Selection Tips: Understanding Thermal Parameters of DC Coreless Motors
With the help of simple thermal modeling

When trying to understand the phenomenon of heating of coreless dc motors, its helpful to express it as a simple thermal model and to draw an analogy with an electrical system. Looking at Fig. 1, you can see the power dissipated (heat) is the difference between electrical input power and the mechanical power (speed & torque) generated by motor shaft. With this basic understanding , let’s next examine the thermal model of a DC coreless motor.

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Topics: Motor Application Tips, Brush DC Motors

Differential Compact Drives

Posted by Vivek Salve   Jun 10, 2021   0 Comments

Motor Innovations: Differential Compact Drives

What is the need for new gearing technologies?

Miniature motion technology demands flexibility as well as compactness with higher power and efficiency. Conventional gear technologies have some limitations which restricts the development of new concepts. One such new concept is a “Differential Compact Drive” which differentiates with other concepts in such that it provides high reduction, high efficiency, lower noise, and a compact length gearbox. Before reviewing the advantages of this new concept lets first review the limitations of Conventional Planetary systems.

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Topics: miniature motors, Custom motors, Brush DC Motors

Brush DC and Stepper Technologies for Security and Locking Devices

Posted by Jeet Shah   Dec 18, 2020   0 Comments

Brush DC and Stepper Technologies for Security and Locking Devices

Security systems are an important part of any commercial buildings whether it’s an office or a warehouse. Biometrics is one of the most deployed systems in a wide variety of industries, from government institutions to industrial buildings. A motor plays a vital part in the design of security locks. Portescap offers the best viable solution for these applications with its various technologies.

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Topics: Security & Surveillance, Stepper Motors, Brush DC Motors

Driving DC Brushed Motors

Posted by Chris Schaefer   Sep 04, 2020   0 Comments

Driving DC Brushed Motors

To control a DC motor, a variable, and controlled power supply is needed. There are three types of methods that can be used:         

    • Voltage-controlled linear supply
    • Current linear supply
    •  PWM (Pulse Width Modulation)
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Topics: Motor Application Tips, Brush DC Motors

Why An Encoder?

Posted by Chris Schaefer   Jun 16, 2020   1 Comments

Encoders provide feedback for accurate control of speed and positioning. The rotor angular position is given through two square waves 90 degrees shifted and an optional index pulse occurring once a revolution. There are multiple technologies to get these results.

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Topics: Motor Application Tips, Brush DC Motors, Encoders

Understanding Speed-Torque Characteristics of Miniature DC Motors (Part 3 of 3)

Posted by Sandeep Gandre   May 30, 2016   0 Comments

Read: Part I  |  Part II

[continued...]

The thermal data given in our catalogue may be indicative, and it should always be confirmed whether the heat dissipation in a given application is actually better and stable. As per the speed-torque curve in Portescap’s catalogue, there is a temporary working range in which we can overload the motor for a small time span. However we should always confirm what that time span should be, and it all really depends on motor size and design. There is a definite time span for every motor size, and this limitation comes from the coil temperature and more precisely, how fast the motor coil or winding heats up.

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Topics: Motor Application Tips, Brush DC Motors

Understanding Speed-Torque Characteristics of Miniature DC Motors (Part 1 of 3)

Posted by Sandeep Gandre   May 17, 2016   0 Comments

Read: Part II  |  Part III

 

Portescap offers miniature motor technologies to solve the motion needs of end markets. Our typical markets can range from motors for medical devices to various industrial applications. We serve our customers through innovative product technologies encompassing brushless miniature DC motors, brush DC & can stack motors, disc magnet motors and stepper linear actuators, to optimize their application performance.

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Topics: Medical & Diagnostics, Automation, Motor Application Tips, Brush DC Motors