Cellphone Detector

*Introduction*With the advancement in communication technology, cell phones now are the most common electronic equipment. It transmits and receives signals in the frequency range of 0.9GHz to 3GHz. The circuit below detect the presence of an activated cell phone when it detects these signals. The principle behind the project is the idea of using the…

Graphics LCD based on Microcontroller

The LCD reference design is developed using the Kinetis KL28Z through the standalone peripheral module FlexIO. The polling method is used to copy data from SRAM or flash to FlexIO's shifter buffer. Image Kinetis board is powered by an ARM® Cortex-M0, providing up to 96 MHz CPU performance besides supporting ultra-low power. KL28Z's FlexIO emulates…

High Power LED Controller

The LDS9003 is a 3-channel and LDS9001 is a 1-channel LED junction temperature monitor and control device intended for use in high power LED solid state lighting applications. It connects directly to a LED anode and the PWM input of available high power HB drivers to real-time adjust LED current to meet maximum LED temperature.…

The Quadro IoT Wi-Fi Kit

The addition of internet connectivity has become a key ingredient of a new generation of “smart products,” i.e., devices that combine sensing, processing, and communications capabilities with internet-based services and applications. The world’s leading businesses are rushing to offer these smart IoT products to gain an edge over the competition. Because of this, the total…

Low Power and Turns Count Sensing with the Angle Sensor IC

This article discusses the uses of the A1337 in battery-powered automotive and non-automotive applications with the need of the sensor to function in multiple mission modes. Automotive Systems Requiring Sensor Operation Even in Key-Off Conditions Certain automotive angle sensing applications require the ability to track angular position even in key-off conditions. In the key-off state,…

ARM Whitepaper

ARM Cortex®-M Processors are the most popular processor series in the electronics industry. With over 300 licenses, the Cortex-M processors are available in over 3500 microcontroller parts from most of the microcontroller vendors, and are also used in wide range of embedded applications including sensors, wireless communication ASICs, power management ICs and as companion processors…

Voltage Isolation in Variable Frequency Drives

Introduction In this application note, a VFD is used as an example system that must meet isolation standards through the use of insulation layers. Many of these same isolation concepts will apply to almost any system that has high voltage control components and a user interface. The basic assumption is that all equipment should be…