Tag: Electronics Projects

DIY Variable Power Supply with Auto Shut-Off Using LM7805

Engineeering Projects
Variable Power Supply with Auto Shut-Off Using LM7805

Ever needed a power supply that just, well, works on your terms? Imagine this: you’re in your workshop, deep into an electronics project, and you wish your power supply could give you just the right voltage, no questions asked. And better yet, what if it turned itself off when you’re done? That’s where this DIY Variable Power Supply with Auto Shut-Off, with the trusty LM7805 at its heart, comes in. It’s your reliable “set-it-and-forget-it” friend for every hobbyist in electronics. So, what’s all this about? Think of this that way:…

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DIY Digitally Controlled Variable DC Power Supply (1.25V to 15.19V) Using LM317 and 4029 Counter

Engineeering Projects
DIY Digitally Controlled Variable DC Power Supply

Imagine being able to control voltage like turning a volume knob, only instead of sound, you’re tuning up or down the power flowing to your electronics. Today, we’re going to create a variable DC power supply with digital controls, using a few nifty components that make this process not just adjustable, but satisfyingly precise. Building this digitally controlled variable DC power supply might sound complex, but I promise it’s like baking with a recipe—it just takes the right steps. So, let’s dive into it. Why Go Digital with Voltage Control?…

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Efficient Low Dropout MOSFET Regulator with 555 Timer Charge Pump

Engineeering Projects
Efficient Low Dropout MOSFET Regulator with 555 Timer Charge Pump

Efficient power regulation with a minimum drop in voltage has become quite necessary in modern electronics, especially when one works with low-voltage DC supplies. It is in meeting such requirements that a Low Dropout MOSFET Regulator becomes handy-assuring stable output with reduced dissipation of power. The following article elaborates on the design for an Efficient Low Dropout MOSFET Regulator, employing a 555 Timer Charge Pump to develop a higher gate voltage for the MOSFET, thereby realizing ultra-low dropout performance. Why Use a Low Dropout MOSFET Regulator? In conventional linear regulators,…

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