Tag Archives: app note

App note: Using the enable Pin in a linear regulator as a voltage supervisor

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Clever way using linear regulator’s enable pin implementing a voltage supervisory circuit control, an app note(PDF) from ON Semiconductors. The combination of a voltage regulator and a voltage supervisor, is a popular circuit configuration. The addition of the supervisor ensures … Read more

App note: Self-starting can be hard to do – Understanding power-on-reset requirements in regulators and bandgaps

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Things should be set-up properly before putting all load back again. Here’s a tip(PDF) from MAXIM on self-powering/recovering from power loss. Self-starting is a necessary but sometimes difficult task, whether it is motivating humans, starting cold automobiles, or providing power-on-reset … Read more

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App note: Bit-Banging the SDI and SQI Modes of Microchip’s 23XX512/23XX1024 Serial SRAMs

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Dual Mode(SDI) and Quad Mode(SQI) Serial interface are not common peripherals on many MCU today, Microchip’s app note (PDF) provides an alternative way to communicate with these SRAMs using existing GPIOs pins in bit-bang. This application note explains in detail … Read more

App note: Power losses and junction temperatures on parallel Schottkys as secondary rectifiers in flyback adapter

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Parallel Schottkys performance over single Shottkys app note (PDF) from NXP This document gives an overview of power losses and the consequential junction temperature rise of two parallel Schottkys as secondary side rectifiers in flyback power adapters with up to … Read more

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App note: Free-fall sensing for drop-force modeling using a Kionix MEMS tri-axis accelerometer

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Here’s another app note (PDF) from Kionix on their tri-axis accelerometer applications. An earlier set-up was used in the application note’s experiment. This application note describes how to use a Kionix MEMS tri-axis accelerometer as a free-fall sensor for drop … Read more

App note: Interfacing the KXP94 or KXR94 tri-axis accelerometer with the Texas Instruments MSP430F149 microprocessor to measure tilt and other motions

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Capture motions with Kionix’ Tri-Axis Accelerometers and a TI’s MSP430F149. App note here (PDF) Kionix linear accelerometers function on the principle of differential capacitance. Acceleration causes displacement of a silicon structure resulting in a change in capacitance. A signal-conditioning CMOS … Read more