Ferrite bead demystified from Analog Devices
Basic Electronics

Ferrite bead demystified from Analog Devices

App note from Analog Devices hinting for proper selection of ferrite bead for you applications. An effective method for filtering high frequency power supply noise and cleanly sharing similar supply rails is the use of ferrite beads. A ferrite bead is a passive device that filters high...

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PSRR of low dropout voltage regulators
Basic Electronics

PSRR of low dropout voltage regulators

Here’s an app note about PSRR of LDO from Microchip. The Power Supply Rejection Ratio is the ability of a device, such as a Low Dropout Voltage regulator, to reject the various perturbations that can be found in its input supply rail by providing a greatly attenuated signal at the...

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App note: How to use power inductors
Basic Electronics

App note: How to use power inductors

A great guide from TDK about power inductors used in DC-DC converters. As electronic devices become more advanced, the power supply voltage of LSIs used in them is lowered, so their power consumption can be reduced and their speed increased. However, a decrease in the power supply...

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Bootstrap Circuit in the Buck Converter explained
Basic Electronics

Bootstrap Circuit in the Buck Converter explained

This application note explains the step-up circuit using a bootstrap capacitor. In buck converters, this circuit is used when the high-side switch is the N-ch MOSFET. The configuration of the circuit in proximity to a buck converter depends on the polarity of the high-side switch.When...

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How to select the right thyristor (SCR) for your application
Basic Electronics

How to select the right thyristor (SCR) for your application

SCR fundamentals discussed in this app note from STMicroelectronics. For an Introduction to Thyristors check here. This document provides some guidelines about how to select the right thyristor, also referred to as “SCR”, according to the different applications. Some very specific...

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I2C – Everything you need to know
Basic Electronics

I2C – Everything you need to know

I2C - Everything you need to know article from www.mikroe.com There is no need for a wordy introduction to I2C protocol. We all know it's main parts - 2 wires, multiple slaves, sometimes multiple masters, up to 5MHz of speed. Often so have we all implemented an I2C connection. Still,...

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Use a Comparator or Op-Amp to Simplify Light Dependent Resistor Output
ArduinoBasic Electronics

Use a Comparator or Op-Amp to Simplify Light Dependent Resistor Output

If your project calls for light sensitivity, it’s hard to beat light dependent resistors (LDRs), also known as photoresistors. They’re available for a few cents each, and their resistance varies based on how much light they receive. In the dark, these devices produce resistances in...

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Understanding Relay Coil Voltage Specifications
Basic Electronics

Understanding Relay Coil Voltage Specifications

by Robert_Fay @ digikey.com: When learning about relays there are a couple coil voltage specifications that can be a little tricky to understand. There are typically 4 specification for coil voltage listed in the datasheet. For this example we will be looking at relay part Z2352-ND 14....

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