P. 0 © 2018 ROHM Co.,Ltd.

PFC DCM 3-Phase Vin=200V Iin=7.5A

Input :

Vin=200Vac Iin=7.5Aac

fps=50Hz

Output : Vo=500Vdc

Gate Drive : Vd=10V

R source=2Ω

R sink=1Ω

Q1,Q2,Q3 : R6030MNX

MOSFET (600V 30A)

D1,D2,D3 : SCS302AHG

SIC SBD (650V 2A)

L1,L2,L3 : 300uH L4 : 100uH

C1 : 50nF

Tj : 100℃

PFC Discontinuous Current Mode 3-Phase Vin=200V Iin=7.5A Simulation Circuit

If1

Iin

IL1 Id1

P. 1 © 2018 ROHM Co.,Ltd.

Simulation Waveform 1

IL1,IL2,IL3,Iin Vin=200Vac Iin=7.5Aac Vo=500Vdc Tj=100℃

Red : IL1(A)

Green : IL2(A)

(5.00～ 5.03ms)

(8.00～ 8.03ms)

A

Expansion (5.00～5.03ms) Expansion (8.00～8.03ms)

A

A

Red : IL1(A)

Green : IL2(A)

Blue : IL3(A)

Blue : IL3(A)

Red : Iin(A)

Red : Iin(A)

Red : IL1(A)

Green : IL2(A)

Blue : IL3(A)

Red : Iin(A)

P. 2 © 2018 ROHM Co.,Ltd.

Simulation Waveform 2

Q1_Loss1, Pd1, Vds1, Id1 Vin=200Vac Iin=7.5Aac Vo=500Vdc Tj=100℃

Loss1(mJ) Switching Loss(off)

Conduction Loss

Pd1(kW)

Vds1(V)

Id1(A)

Loss1(mJ)

Pd1(W)

Vf1(V)

If1(A)

D1_Loss1, Pd1, Vf1, If1 Vin=200Vac Iin=7.5Aac Vo=500Vdc Tj=100℃

Switching Loss(on)

P. 3 © 2018 ROHM Co.,Ltd.

0

1

2

3

4

5

800 1000 1200 1400 1600

Po

wer

Dis

sip

ati

on

(W

)

Pin (W)

0

1

2

3

4

5

-60 -40 -20 0 20 40 60 80 100 120 140 160

Po

wer

Dis

sip

ati

on

(W

)

Tj (℃)

90

92

94

96

98

100

-60 -40 -20 0 20 40 60 80 100 120 140 160

Eff

icie

ncy (

%)

90

92

94

96

98

100

800 1000 1200 1400 1600

Eff

icie

ncy (

%)

Efficiency, Power Dissipation

Pin : 900W～1.5kW Vin=200Vac Vo=500Vdc Tj=100℃

Efficiency (%)

Efficiency : 100×Po/Pin

Pd(W) Power Dissipation

Q1,Q2,Q3

D1,D2,D3

Efficiency (%)

Efficiency : 100×Po/Pin

Pd(W) Power Dissipation

Q1,Q2,Q3

Tj : -25℃～125℃ Vin=200Vac Iin=7.5Aac Vo=500Vdc

D1,D2,D3