Mike DonnellyThis design is a detailed circuit implementation of the more abstract "state-average" buck converter model shown in the companion...
Mike DonnellyThis example shows the performance of an ON Semiconductor NCV8876 Automotive Grade Start-Stop Boost Controller:
DarrellThis is a circuit design for a typical wall-plug power adapter.
The sinusoidal source represents a typical US 60 Hz, 120V AC wall...
Mike DonnellyThis test circuit shows how the programmable features of the NCV78703 can be changed dynamically during the simulation run:
Test 1...
A Programmable Multiphase Boost Controller for High Efficiency LED Lighting Applications
Featured Article | Mike Donnelly | 7 November 2020
We recently released our first programmable power converter controller model into the PartQuest Explore Partner Library. Working with ON Semiconductor product and application experts, we created a fully-functional model of the NCV78703. It is a single-chip, three-phase high efficiency boost controller that can be used for various automotive LED Front Lighting functions. Thanks to its SPI programmability, a single hardware configuration can support a diverse range of applications just by using different settings.
TDFS Part 2 – Closed Loop Stability Analysis for Switching and Sampled-Data Circuits and Systems
Featured Article | Mike Donnelly | 20 January 2017Stability is an essential quality of most practical circuits and systems. A traditional stability metric for closed-loop control systems is gain and phase margin, based-on the open-loop transfer function (OLTF) or frequency response. A special physical measurement technique for obtaining the OLTF of an operating closed-loop system, pioneered by Dean Venable* in the 1980s, involves injecting a small sinusoidal stimulus in series with the loop, and measuring the absolute signal levels at the injection site.