App note: Measuring RPM from back EMF

Interesting App note from Precision Microdrives on finding RPM using back EMF. Link is here Measuring the speed of a motor can be an important requirement for some applications. For example DC and gearmotors that are moving loads may require close monitoring or adjustment of the output speed. External sensors are typically used for speed […]

App note: Discrete driver circuits for vibration motors

Simple solution in driving vibration motors, an app note from Precision Microdrives. Link can be found here This bulletin covers the circuitry required to drive vibration motors from a high impedance signal source (for example an output pin of a micro controller / digital device). There are several integrated IC’s that can do this job, […]