Are you tired of dealing with the damaging effects of inrush currents on your industrial devices? Look no further than an AC inrush current limiter (soft starter). Inrush current, also known as surge current, is the large amount of current that ...
Simple analog circuits manage multi-PSU powerup and shutdown sequences In projects containing digital and/or analog circuits, multiple power supplies are used, generally 5 V DC for digital circuits and 15 V DC for analog circuits. Some projects ...
This circuit uses a flat piezoelectric wafer, glued inside a plastic box, as a finger tap sensor. With each tap of a finger to the box holding the wafer, the circuit turns on and off AC or DC power to an external device. The circuit is powered by a ...
Given two batteries, it chooses the one to connect to the load based on the voltage measured at their poles. It can also be used to switch DC power supplies. The growing demand for portable devices capable of working where there is no power grid or ...
Let’s melt metals using the ZVS (Zero Voltage Switching) technique applied to a 1,000 W RLC resonant circuit. Have you ever wondered how intense the electromagnetic fields surrounding us can be? This is a relevant question, considering we are ...
In the first part ( Reference 1 ) of this Design Idea (DI), we looked at simple ways of keeping critical components at a constant temperature using a linear approach. In this second part, we’ll investigate something PWM-based, which should be ...
If your favorite tool is a hammer, every problem will look like a nail. Abraham Maslow Given how often I tinker with the LM555 and LMC555 analog timers, Maslow might have written that famous aphorism specifically for me. And it. Well, here I go ...
The ovens in this two-part Design Idea (DI) can’t even warm that leftover half-slice of pizza, let alone cook dinner, but they can keep critical components at a constant temperature. In the first part, we’ll look at a purely analog ...
The pages of Design Ideas (DIs) have recently been awash in a veritable cascade of designs for variable frequency oscillators with frequency ranges tunable over multiple decades: Self-oscillating sawtooth generator spans 5 decades of frequencies ( ...
A tiny DC to DC buck converter board is useful for many applications, especially if it could deliver currents up to 3 A (2 A continuously without heatsink). In this article, we will learn to build a small, efficient, and cheap buck converter ...