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 sheet. For example, a large metal chute which is carrying materials which are prone to coagulating, may require a vibration motor. This bulletin […]
Tag Archives: app note
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 disadvantages. Some techniques are specific to different types of motor. This guide will help you evaluate different mounting methods and perhaps introduce some options […]
App note: Designer’s guide for the Si114x
Si114x proximity sensors from Silicon Labs design guide. Link here This application note provides an outline for using the Si114x proximity detector and ambient-light sensor. General considerations of electrical and optical component selection, programming, and power consumption are explained so as to cover the majority of situations.
App note: Touchless lavatory appliance design
Using the Silicon Labs’s Si1141 sensor and C8051F9xx series microcontroller for touchless lavatory. Link here The Si1141 is a single-channel, reflectance-based proximity detector with an integrated ambient light sensor and can be used as a touchless sensor IC in lavatory appliances. As a proximity detector, the Si1141 has two infrared photodiodes, flexible ADC integration time, […]
App note: Anatomy of a high-quality meter
An application note from Fluke on best characteristics of a high-quality multimeters. Link here The hazards of working with electricity aren’t new, of course. But as electronic and electrical systems become increasingly complex, the dangers of measuring its flow have increased and unprepared technicians can suddenly be faced with a simple job gone bad. The […]
App note: Ten dumb things smart people do when testing electricity
Tips from Fluke on things we could not resist doing or forgetting when doing electricity works. Link here. Anyone who makes their living by working with electricity quickly develops a healthy respect for anything with even a remote chance of being “live.” Yet the pressures of getting a job done on time or getting a […]
App note: Eliminate noise through proper supply bypass filtering
Power supply filtering, an application note from Maxim Integrated. Link here If sensitive analog systems are run from one supply without the sufficient bypassing to eliminate noise, undesired degradation in a system’s performance will result. This application note provides insight into suitable techniques to overcome this roadblock.
App note: Simple wireless bluetooth stereo audio system for outdoor use
Old app note from Maxim Integrated on DIY portable bluetooth audio system. Link (PDF!) here When people want portable music, they usually rely on battery-powered audio devices. With a bit of engineering blood (or curiosity) running in your veins, it is not difficult to build a wireless Bluetooth® stereo audio system that can be controlled […]
App note: Synchronous CCSS Regulator
Capacitor-coupled switched shunt regulator (CCSS) App note from Microchip. App note here. Shunt regulators consist of two elements: a voltage regulator in parallel with the load (the shunt), and a series element between the supply and load to limit current. The parallel shunt regulates voltage by varying its conduction to maintain the desired voltage across […]
App note: HV823 & HV825 EL lamp driver circuits
App note from Microchip on their EL lamp drivers circuits utilizing (Supertex) HV823 and HV825, App note here. This application note presents fourteen EL driver circuits utilizing the Supertex HV823 and HV825 drivers. They have been optimized for a variety of applications and may be used as-is or used as a starting point in designing […]
App note: Creating Bluetooth low energy applications using nRF51822
An application note from Nordic Semiconductor on creating you own BLE application using their nRF51822 chip. Link here This application note is intended for anyone who would like to begin programming Bluetooth low energy (BLE) applications on nRF51822. It consists of a general overview of BLE functionality and is followed by a description of a […]
App note: Low cost I2C level translator
2 Diodes, 3 resistors and a transistor here’s Silicon Labs’ low cost solution on voltage level translation. Link here This applications note discusses a low-cost circuit for I2C level translation. This circuit was developed for the Si701x, Si702x, and Si703x humidity sensors but will work in many applications. This circuit provides I2C level translation from […]
App note: Isolator vs. optocoupler technology
Great read from Silicon Labs on comparison of isolation technologies namely optocouplers and digital isolators. Link is here Optocouplers have been the unchallenged signal isolation solution for more than four decades, but digital isolators fabricated in complementary metallic oxide semiconductor (CMOS) process technology are gaining favor in the design community because of their superior performance, […]
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 electromagnetic noise on a system. DC motors are a common source of EMI, as are most electromagnetic circuit components. They are potential sources of noise and can […]
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: High-Precision 16-Bit PWM
Technical brief from Microchip on their high-precision 16-Bit PWM modules found on various PIC16 devices. PDF link here The high-precision 16-bit PWM available in various PIC16 devices such as the PIC16F1574, delivers advanced features beyond those found on standard PWM modules. These innovative features allow the user to easily vary phase, duty cycle and offset […]
App note: USB to I2C bridging with Microchip USB 2.0 Hubs
App note on Microchip’s USB 2.0 Hubs on its I2C support. PDF link here The USB to I2C bridging feature of Microchip’s USB 2.0 hubs provides system designers expanded system control and potential BOM reduction. When using this feature in a system design, a separate USB to I2C device is no longer required and a […]
App note: USB to GPIO bridging with Microchip USB 2.0 Hubs
App note on Microchip’s USB 2.0 Hubs on its GPIO capabilities. PDF link here The USB to GPIO bridging feature of Microchip’s USB 2.0 hubs provides system designers expanded system control and potential BOM reduction. General Purpose Input/Outputs (GPIOs) may be used for any general 3.3V level digital control and input functions. This feature is […]
App note: Introduction to USB Type-C
Microchip’s App note on USB Type-C cable. PDF is here The USB-IF has secured the ubiquitous nature of USB for years to come with the radically updated USB Type-C connector. While the sleek new reversible form factor has been significant for generating buzz and excitement from the general consumer market, the significantly expanded feature-set is […]
App note: PoE and LED Lighting: the perfect match
App note from MAXIM Integrated on LED lighting utilizing power from PoE. Link here This application note explains that Power-over-Ethernet (PoE) is a technology used in wired local area networks (LANs). PoE delivers power over the same cable that delivers the Ethernet data. Using LED lighting on a PoE network delivers excellent energy efficiency because […]