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Boost PFC


It is the simplest and most commonly used PFC circuit, consisting of a single boost converter. The desired current waveform can be generated by switching operation, and the power factor can be made close to one.


- Typically SJ MOSFET and SiC diodes (or FRD)
- Efficiency around 98%
- Frequency 70 kHz to 130 kHz
- Full load and nominal efficiency only guaranteed for 230 V AC



Key Products

Product CategoryProduct familyProduct NumberFeature
Switching Transistor600 / 650V SJ MOSR60xxKN /R65xxKNGood compromise between performance and ease of use.
650 V IGBTRGWxx seriesIGBT proposal for lower cost, but comprising efficiency.
Diodes650 V SiC SBDSCS3xx seriesIncreased surge current mode capability of 3rd gen.
650V Si FRDRFS seriesLower Vf than RSV series, but ultra fast switching capability
RFL seriesImprove fast switching capability than RFN series.
600 V Si FRDRFV seriesfast trr for CCM PFC (600V only)lower cost solution vs SiC SBD
RFN serieslow VF for DCM PFC (600V only) lower cost solution vs SiC SBD
Gate DriverIsolatedBM61xxx Series1ch 3750Vrms isolated, for devices including driver source pin.
non-IsolatedBD2310G1ch non-isolated, simplest solution available.


A-001 : Boost PFC VIN=200V, IIN=2.5A, BCM

A-002 : Boost PFC VIN=200V, IIN=2.5A, CCM

A-004 : Boost PFC VIN=200V, IIN=2.5A, DCM

Related Topologies

Interleaved Boost PFC

Totem-Pole Bridgeless PFC (Diode Rectification)

Totem-Pole Bridgeless PFC (Synchronous FETs)