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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 Category Product family Product Number Feature
Switching Transistor 600 / 650V SJ MOS R60xxKN /R65xxKN Good compromise between performance and ease of use.
650 V IGBT RGWxx series IGBT proposal for lower cost, but comprising efficiency.
Diodes 650 V SiC SBD SCS3xx series Increased surge current mode capability of 3rd gen.
650V Si FRD RFS series Lower Vf than RSV series, but ultra fast switching capability
RFL series Improve fast switching capability than RFN series.
600 V Si FRD RFV series fast trr for CCM PFC (600V only)lower cost solution vs SiC SBD
RFN series low VF for DCM PFC (600V only) lower cost solution vs SiC SBD
Gate Driver Isolated BM61xxx Series 1ch 3750Vrms isolated, for devices including driver source pin.
non-Isolated BD2310G 1ch 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)