Power Electronics Primer
Circuits that convert voltage, current, and frequency through semiconductor switching, from fundamentals to industrial applications.
Choose a path by its goals and prerequisites. Start at the beginning or jump to the topic you need.
Articles · 4Browser Labs · 1
Read the first step: Power Electronics Primer — Using Semiconductor Switches to Transform Voltage, Current, and Frequency →Background and reading guide Circuit voltage, current, resistance, inductors and capacitors.
- Articles · Fundamentals · 6 min
Power Electronics Primer — Using Semiconductor Switches to Transform Voltage, Current, and Frequency
Power electronics is the technology of reshaping electrical power by switching semiconductor switches on and off at high speed. This article connects rectifiers, DC-DC converters, inverters, PWM, SiC/GaN, motor drives, grid interconnection, and thermal design with math and waveforms, and explains why it matters for electric vehicles, renewable energy, and data centers.
Background and reading guide
Circuit voltage, current, resistance, inductors and capacitors.
- Articles · Fundamentals · 4 min
DC-DC Converters — Buck, Boost, and Isolation
A DC-DC converter chops DC and stores energy in inductors or transformers to produce another DC voltage. This guide explains buck, boost, buck-boost, Flyback, LLC, and DAB operation, control, loss, and safety with diagrams and equations.
Background and reading guide
Circuit voltage, current, resistance, inductors and capacitors.
- Articles · Fundamentals · 4 min
Inverter Circuits — Switching DC into AC
An inverter chops DC with semiconductor switches and synthesizes the AC voltage, frequency, and phase a load needs. This guide covers single- and three-phase topologies, PWM, motor control, losses, and protection with diagrams and equations.
Background and reading guide
Circuit voltage, current, resistance, inductors and capacitors.
- Browser Labs · Fundamentals · 4 min
From motor speed control to FOC: current, torque and nested loops
Understand how speed control requests current and how FOC connects rotating coordinates, electrical angle and limits.
Background and reading guide
PID, current/voltage and basic inverters.
- Articles · Fundamentals · 4 min
SiC and GaN Power Semiconductors — Why WBG Enables Speed
SiC MOSFETs and GaN HEMTs use wider bandgaps and higher critical fields than silicon to enable efficient, high-frequency switching. This guide covers physics, loss, gate drive, EMI, reliability, and applications with equations.
Background and reading guide
Circuit voltage, current, resistance, inductors and capacitors.