Free Elektor Circuit: Cable & Conduit Locator
Basic Electronics

Free Elektor Circuit: Cable & Conduit Locator

Apart from the risk of a (dangerous) electric shock and the near certainty of a very massive short circuit that is the consequence of drilling into a cable, the aftermath of this mishap is no fun either. In any case, the damaged cable has to be replaced – and that is already not nice...

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Fundamentals of MOSFET and IGBT Gate Driver Circuits
Basic Electronics

Fundamentals of MOSFET and IGBT Gate Driver Circuits

The main purpose of this application report is to demonstrate a systematic approach to design high-performance gate drive circuits for high-speed switching applications. It is an informative collection of topics offering a “one-stop-shopping” to solve the most common design...

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Low ESR tantalum capacitors make a difference in circuit designs
Basic Electronics

Low ESR tantalum capacitors make a difference in circuit designs

App note from Vishay about how ESR in tantalum capacitors affects circuit performance. Link here (PDF) When choosing a capacitor for any application, there are a few key characteristics that must be understood in order to analyze its suitability for the circuit. In a simple capacitor...

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Designing in MOSFETs for safe and reliable gate-drive operation
Basic Electronics

Designing in MOSFETs for safe and reliable gate-drive operation

The MOSFET gate-source threshold voltage (VGS-th) and maximum gate-source voltage(VGS-max) are key parameters that are critical to the reliable operation of MOSFETs. The threshold voltage represents the voltage at which the MOSFET starts to turn on, whilst the maximum gate-source...

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Free Elektor Circuit – An NE555 Watchdog Timer
Basic Electronics

Free Elektor Circuit – An NE555 Watchdog Timer

from an Idea by Wolfgang Borst (Germany) Virtually every modern microcontroller has a built-in watchdog. It prevents the microcontroller ‘hanging’ which may be the result of a programming error or an unforeseen operating condition, where, for example, the program becomes trapped in...

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Give The Gift Of Real-World Coding Skills To Tweens This Holiday Season
Basic Electronics

Give The Gift Of Real-World Coding Skills To Tweens This Holiday Season

Let’s Start Coding Offers Customizable Electronic Kits That Teach Kids 8-12 Real Code in a Hands-on Way Remember how much fun you had with chemistry sets from your childhood? You made things blow up and glow and learned about chemistry in the process. Let’s Start Coding is the...

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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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