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App note: Advanced vibration alerting waveforms
Here’s an app note from Precision Microdrives on different techniques of motor vibration that can be used as haptic feedback. Link can be found here Advanced signal waveforms are predominantly used in...
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App note: Miniature motor driver resource
Here’s a great resources of motor drivers from Precision Microdrives. Link is here. Whilst most DC motors are essentially driven with the same principle (by applying a DC voltage), these chips boast a...
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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...
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App note: Electromagnetic Compatibility (EMC / EMI) for Vibe Motors
Here’s an App note from Precision Microdrives on EMI from vibration motors and their Electromagnetic compatibility. Link is here Electromagnetic interference (EMI) is the radiation or induction of...
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App note: Mechanical mounting for vibration motors to PCBs
Vibration motor PCB mounting guide from Precision Microdrives. Link here There are many methods for mounting a vibration motor to a Printed Circuit Board (PCB), each with their own advantages and...
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App note: Mechanical mounting for vibration motors to bulkheads
Vibration motor bulkheads mounting guide from Precision Microdrives. Link here The word bulkhead has a few different meanings, in this context we are using it to represent a large flat surface or...
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App note: Driving linear resonance vibration actuators
Linear resonance vibration actuators are great alternative to Eccentric rotating mass (ERM) motors, these are both used to vibrate handheld devices such as cellphones, driving LRAs is not the same as...
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App note: Understanding linear resonant actuator characteristics
Application note about Linear Resonant Actuators from Precision Microdrives. Link here Linear Resonant Actuators (LRAs) are becoming more popular for haptic applications. They are an alternative to...
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App note: Lifetime of DC vibration motors (MTTF & FIT)
DC vibration motors failure analysis by Precision Microdrives. Link here Reliability is an important consideration for engineers and product designers. It is also very context specific. For example...
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App note: Sensorless speed stabilizer for a DC motor
Precision Microdrives’ sensorless speed sense by exploiting speed dependent back EMF voltage. Link here Motor speed is a parameter of a DC motor that is often measured and controlled, usually through...
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App note: Using SPICE To model DC motors
App note from Precision Microdrives helping you model DC motors in SPICE. Link here SPICE (Simulation Program with Integrated Circuit Emphasis) is an open-source program for simulating electrical...
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App note: Driving brushless long-life vibration motors
App note from Precision Microdrives on new brushless motor design and how to drive them efficiently. Link here For a long time, all motors driven by DC supplies relied on using metal or carbon brushes...
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App note: Vibration motor best practices from mobile/cell phones
App note from Precision Microdrives on how to design drivers for vibration motors on battery powered mobile devices. Link here The mobile phone industry is a huge market in which vibration motors are...
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App note: Integrated driver circuits For vibration motors
App note from Precision Microdrives about dedicated motor drivers used in vibration motors. Link here Using a dedicated chip has a number of advantages, the most obvious being a reduction in design...
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