Courses
These are written the way I wish the subject had been explained to me: the intuition first, then the maths once you can see what it is for, then a worked design carried through to real numbers and a real part you could order. Every one comes out of a problem I have actually had to solve at work, and most have a browser simulator alongside so you can change the numbers and watch what happens.
Available now
Grid-Connected Bidirectional Single-Phase Inverter
Explanation and comparison of control methods for a grid-connected bidirectional single-phase inverter - current control, power control, Python examples.
39 EUR — 14-day money-back guarantee
The Boost Converter
How a step-up converter works, and how you control it - a plain-language follow-up to the buck guide. Built from the same parts as a buck, with the input and output swapped.
Free
The Buck Converter
How a step-down converter works, and how you control it - a plain-language guide with a companion web simulator. From chopping and averaging, to sizing the inductor and capacitor, to PWM and cascade control.
Free
PWM Strategies for Full-Bridge Inverter
Explanation and comparison of three PWM strategies for a full-bridge inverter - bipolar, standard unipolar, and fast-slow leg - with analytical equations and Python examples.
Free The Single-Phase Rectifier
How you turn the AC grid into the DC a battery wants - starting with four diodes and a capacitor, seeing why that draws a spiky current the grid hates, and then building the boost power-factor corrector that draws a clean sine instead.
Free Grid-Forming Control
A grid-following inverter controls current into a voltage that already exists. A grid-forming inverter must establish that voltage. Starting from the current controller and PWM developed in the bidirectional single-phase inverter course, this course adds the voltage and outer control layers that make droop and VSG operation possible.
Free