voltage Archives - Page 18 of 24 - Use Arduino for Projects

Rohde & Schwarz optimizes power supplies for educational applications

Electronics News Updates / By Ibrar Ayyub

The new R&S NGE100B power supply series is particularly easy and safe to operate. The robust instruments have galvanically isolated channels and safety binding posts. The color-coding of the channels provides a quick overview. The power supplies are compact, quiet and can optionally be remotely controlled via WLAN, a unique feature for instruments in the under EUR 1000 price […]

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Nuclear physics applied in smoke detectors

Electronics News Updates / By Ibrar Ayyub

Not many people know, but in some smoke detectors, radioactive materials play an essential role. Today I will present one of those devices, and my -successful- attempt to reverse engineer it and get the circuit diagram. Those smoke detectors use a small amount of Americium-241 (chemical symbol: Am) obtained in nuclear reactors as a decay

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LC-04 4 Channel Logic Converter 3.3V – 5.0V

Electronics News Updates / By Ibrar Ayyub

If you have ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. The LC-04 bi-directional logic level converter is a small device that safely steps down 5V signal to 3.3V and steps up 3.3V to 5V at the same time. In this instructable, mybotic explained the

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Load switch with self-resetting circuit breaker

Electronics News Updates / By Ibrar Ayyub

The simple current-limiting load switch shown in Figure 1 will be familiar to most readers. In this circuit, a high level signal applied to the input switches on MOSFET Q2, which energizes the load. The load current is limited by negative feedback applied via Q1. In most applications, the current flowing via R2 into Q1’s

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€15 IoT Geiger Counter using ESP8266

Electronics News Updates / By Ibrar Ayyub

Geiger counters are devices used to detect radioactive emissions, most commonly beta particles and gamma rays. The counter consists of a tube filled with an inert gas that becomes conductive of electricity when it is impacted by a high-energy particle. The Geiger–Müller tube or G–M tube is the sensing element of the Geiger counter instrument

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The SilentSwitcher, A Quiet Mains-free Power Supply

Electronics News Updates / By Ibrar Ayyub

Audio projects become smaller over time with the rapid advancement of technology. A traditional power supply is still considered large compared to audio projects size constraints and it may not fit such delicate applications that need to deliver a good sound with zero noise. Jan Didden, audio specialist who is known for his own publications

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Reverse engineering a server CPU voltage regulator module

Electronics News Updates / By Ibrar Ayyub

A recent ebay fishing expedition yielded an interesting little part for the very reasonable sum of about five pounds. It’s a voltage regulator module from a Dell PowerEdge 6650 Xeon server. I originally bought this because I had the idea of salvaging parts from it to use in another project. These are high quality modules

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Temperature-to-period circuit provides linearization of thermistor response

Electronics News Updates / By Ibrar Ayyub

Designers often use thermistors rather than other temperature sensors because thermistors offer high sensitivity, compactness, low cost, and small time constants. But most thermistors’ resistance-versus-temperature characteristics are highly nonlinear and need correction for applications that require a linear response. Using a thermistor as a sensor, the simple circuit in Figure 1 provides a time period

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ICS501 simple frequency multiplier

Electronics News Updates / By Ibrar Ayyub

Today I made a high frequency multiplier using a single component: the ICS501 PLL clock multiplier IC. This chip provides 2x, 5x, 8x (and more) clock multiplication using an internal phased-lock loop (PLL). At less than a dollar on eBay, $1.55 on mouser, and $0.67 on Digikey, they don’t break the bank and I’m glad I have a few in my

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How To Configure a 555 Timer IC

Electronics News Updates / By Ibrar Ayyub

The 555 timer was introduced over 40 years ago. Due to its relative simplicity, ease of use and low cost it has been used in literally thousands of applications and is still widely available. Here we describe how to configure a standard 555 IC to perform two of its most common functions – as a

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