A power supply that I was examining used an opto-coupler in its feedback path for control of its output voltage. This is a commonplace and well established design approach, but the feedback loop’s unconditional loop stability was not ...
A switched-mode power supply (SMPS) employing peak current-mode control (PCMC) requires a ramp signal to slope-compensate the inner (current) control loop. Slope compensation stabilizes the current loop, which would otherwise exhibit subharmonic ...
Using two unipolar dc supplies in an anti-series configuration is another approach for generating positive and negative voltage and one that doesn't suffer from power interruption. In 2012, I wrote two articles in Electronic Design that ...
Ask a power converter designer what they want from a semiconductor switch and the answer might be something like: “Low on-resistance, high off-resistance, and the fastest possible transition between the two states”. The idea of course, ...
Introduction Every electronic device you can consider containing a PCB is still the best and most reliable way of connecting electronics components. The PCB stands for Printed Circuit Board , on which electronic components are soldered on pads ...
Developed as a three-terminal shunt regulator, the popular and multiple-sourced TL431 IC offers designers many intriguing possibilities beyond its intended application. Internally, the TL431 comprises a precision voltage reference, an operational ...
ADCs with differential inputs are becoming increasingly popular. This popularity isn't surprising, because differential inputs in the ADC offer several advantages: good common-mode noise rejection, a doubling of the available dynamic range ...
More than a half-century old, the ubiquitous and mind-bogglingly useful 555 analog timer has become a perennial object for both kudus and criticism. Most of the former and some of the latter is justified, but sometimes a supposed shortcoming will ...
Many applications call for wide-range-tunable LC oscillators that can deliver a nearly constant-frequency, nearly harmonic-free output even when the circuit's output load changes. From a design viewpoint, eliminating either inductive or ...
This Design Idea shows how to keep telecom equipment operational during a short brownout. You must first understand a few details regarding the power supply for telecom equipment. The common voltage of the power source that feeds telecom equipment ...