Totem-Pole PFC (Unidirectional + Bidirectional)
Totem-pole PFC on one page — unidirectional and bidirectional (4-quadrant) variants.
Paid course
Single-Phase Totem-Pole PFC Control Course
Totem-pole PFC from topology choice through ACMC tuning and DC-bus filter design. A strict-mirror of the inverter course's structure, rewritten for PFC.
Launching mid-2026. Drop your email below to be notified at launch.
What you'll learn
- Single-phase totem-pole PFC topology — fast vs slow leg, SiC vs Si, current-path analysis.
- Three-block cascade control: outer DC-bus PI → multiplier → inner ACMC.
- ACMC tuning: PI + voltage feed-forward, three variants compared head-to-head.
- DC-bus measurement: instantaneous vs LP at 10 Hz vs notch at 100 Hz.
- Outer-loop design: PI-only vs feed-forward vs PI + FF, three implementations.
- Why no PLL is needed (multiplier uses line-voltage directly).
- Reading the Bode plot for the ACMC inner loop.
Prerequisites
You should already know: KCL / KVL, Complex-impedance reasoning, PI controller basics.
You don't need prior experience with: Prior PFC experience, Totem-pole topology knowledge, Average-current-mode control internals — these are taught from first principles.
Deliverables
- PDF (xelatex, ~30 pages)
- Jupyter notebook (~95 cells, 0 errors)
- Simulation models for ACMC variants (3), DC-bus filters (3)
Syllabus
1. Topology and plant
- Fast leg + slow leg, current paths, switching
- Boost inductor + DC-bus capacitor sizing
- Averaged plant derivation
2. PWM for totem-pole
- Fast-leg PWM, slow-leg line-frequency switching
- Dead-time considerations
3. Inner ACMC current loop
- PI + voltage feed-forward
- 3 variants: FF-only, PI-only, FF+PI
- Tuning via open-loop Bode
4. Outer DC-bus voltage loop
- Multiplier + PI
- DC-bus measurement filter comparison
- Anti-windup strategies
5. Simulation + tuning
- 100 Hz ripple rejection
- Load-step transient
- Full-system end-to-end
About the instructor
Kristian Skorpen — Power-electronics engineer at Pixii (grid-connected BESS). MSc Electrical Engineering, NTNU. I publish runnable Simulink models and deep-dive courses that teach control design the way I actually use it at work.
FAQ
When will it launch?
Mid-2026. Join the launch list to be notified.
Will there be a bundle with the Single-Phase Inverter course?
Yes — bundle pricing at launch for everyone on the notify list.
Does it cover three-phase PFC?
No, single-phase only. Three-phase (Vienna, six-switch) may follow.
Be notified when Single-Phase Totem-Pole PFC launches
One email at launch. Nothing else.