Category Archives: Magnets

physical science, magnetism, electromagnet, magnet, electricity, electrons, electrodynamics, electromagnetic induction

PIC24FV16KM202 CLASS D AMPLIFIER

Class D amplifiers have become a popular audio amplifier topology due to their high efficiency and subsequent low cost. The high current output stage is implemented using binary switches, resulting in minimal heat generation and power loss. This allows for the power supply, heat sink and overall physical size of the amplifier to be minimized.…

BMA222 Digital triaxial acceleration sensor

The BMA222 is an advanced, ultra-small, triaxial, low-g acceleration sensor with digital interfaces, aiming for low-power consumer electronics applications. The BMA222 allows measurement of accelerations in 3 perpendicular axes and thus senses tilt, motion, shock and vibration in cellular phones, handhelds, computer peripherals, man-machine interfaces, virtual reality features and game controllers.   Figure:1 Schematic Diagram…

DC and Transient Current Capability of Current Sensor

This application note discusses the DC and transient current capability and fuse characteristics of surface mount current sensor integrated circuits. It covers the testing performed and limitation of results, and test results including high current pulse behavior, DC current capability. Introduction Allegro MicroSystems offers a broad product family of current sensor IC solutions with integrated…

175 mW Constant Voltage Non-Isolated Buck Converter

This document is a design example report of 175 mW constant voltage, universal input, non-isolated buck converrter employing LinkSwitch™-TN2 LNK3202D. It normally operates with an input voltage ranging from 85 VAC to 265 VAC and delivers an output of 5 V at 35 mA. This design features lowest cost and component count , excellent output…

Low-Power and Turns-Count Sensing with the A1337 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,…

3-Phase Hall Sensor BLDC Driver Using Z32F128 MCU

This MultiMotor Series application note investigates the closed- and open-loop control of a 3-phase brushless direct current (BLDC) motor using a Z32F128 ARM Cortex M3 MCU. Zilog’s ZNEO32! Family of microcontrollers is designed specifically for motor control applications and, with this MultiMotor Series, features an on-chip integrated array of application-specific analog and digital modules using…