September 2026

Compare boost PFC inductor design for continuous and boundary conduction modes, including ripple, peak current, core material, copper loss, EMI, and thermal validation.

Understand how transformer winding connections and neutral grounding determine zero-sequence current, earth-fault level, overvoltage, and protection behavior.

Learn when common-mode choke leakage inductance can support differential-mode filtering, why it varies, and when a separate differential inductor is still required.

See how transformer manufacturers qualify crimped winding connections through material control, crimp geometry, pull testing, resistance, thermal cycling, and process monitoring.

Learn how to design an auxiliary high frequency transformer for totem-pole PFC gate drivers, controllers, relays, and housekeeping rails across startup and fault modes.

Learn how current-probe bandwidth, droop, saturation, insertion inductance, loop area, deskew, and operating mode affect power inductor ripple measurements.

Understand power transformer bushing voltage class, current, insulation medium, creepage, capacitance, partial discharge, thermal limits, and field inspection.

See how transformer manufacturers validate laser stripping of magnet wire using wavelength, focus, energy, residue checks, conductor damage limits, resistance, and pull tests.

Understand X and Y safety capacitor classes, voltage derating, surge duty, humidity, temperature, leakage current, capacitance tolerance, and filter resonance.

Understand tap changer contact wear, transition resistance, arcing, oil condition, motor drive, timing, diagnostics, and maintenance for power transformers.