We’re back! A huge thank you to everyone for their patience whilst we temporarily paused our tech blog during our website update, and our sincere apologies to those who signed up during the break expecting to receive an email last month. As subscribers will notice,
Introduction We’re commonly asked for information such as MTTF (Mean Time To Failure), FIT (Failure In Time) or the total number of “cycles” that our DC motors and gearmotors will reach. This is a difficult question to answer as there are a variety of parameters
Introduction Cogging is an undesirable characteristic of some permanent magnet motor designs. It’s also known in stepper motors as ‘detent’ or ‘no current’ torque. Cogging torque is generated when the sides of the rotor teeth line up with the sides of the stator teeth within
Introduction At PMD we not only manufacture high-quality miniature motors and mechanisms, but we also design and make our own testing equipment. This means that we have a wide range of proprietary dynamometers, environmental and longevity testing equipment so that we can have confidence in the
This blog post is part two of a 2-part series. Part one was a quick re-cap of how LRA’s work and how they are driven by dedicated driver ICs. This part is about what happens when the LRA’s don’t work entirely as expected with selected
This blog post is part one of a 2-part series. Part one is a quick re-cap of how LRA’s work and how they are driven by dedicated driver ICs. Part 2 is about what happens when the LRA’s don’t work entirely as expected with selected
Introduction Christmas time in Northern European countries is a time of rest, feasting for the cold months ahead, and spending time with family. For our readers with Children, you’ll know all too well that keeping them busy and engaged is important. Also being engineers, Christmas
Introduction On our last blog post, we talked about motor surge protection in battery powered systems. One of the suggested methods was adding a Negative Temperature Coefficient (NTC) thermistor, but we didn’t explain how to choose an NTC for a project that includes miniature motors.
Introduction When considering a project including a miniature motor, the selection of the appropriate battery is crucial. Many variables may come into consideration, and a balance in regards of requirements, is often necessary. Li-Po rechargeable batteries are the preferred option for many of our customers when
Introduction Our haptic feedback evaluation kit is an inexpensive tool for everyone interested in implementing a vibration alerting or haptic feature into a project. It allows application engineers and designers to understand the performance of the various actuators that we produce. It can also be