DC-DC Buck Converter 2-Phase Vo=250V Io=40A Simulation ... · DC-DC Buck Converter 2-Phase Vo=250V...

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P. 0 © 2018 ROHM Co.,Ltd. DC-DC Buck Converter 2-Phase Vo=250V Io=40A Input : Vin=800V Output : Vo=250V Io=40A Gate Drive : Vd=18V R source=5Ω R sink=2Ω Q1 : SCT3080KL SiC MOSFET(1200V 31A) D1 : SCS220KG SiC SBD(1200V 20A) L1, L2 : 200uH C1 : 10uF Tj=100DC-DC Buck Converter 2-Phase Vo=250V Io=40A Simulation Circuit Io IL1 IL2 Iin IL

Transcript of DC-DC Buck Converter 2-Phase Vo=250V Io=40A Simulation ... · DC-DC Buck Converter 2-Phase Vo=250V...

Page 1: DC-DC Buck Converter 2-Phase Vo=250V Io=40A Simulation ... · DC-DC Buck Converter 2-Phase Vo=250V Io=40A Input : Vin=800V Iin Output : Vo=250V Io=40A Gate Drive : Vd=18V R source=5Ω

P. 0 © 2018 ROHM Co.,Ltd.

DC-DC Buck Converter 2-Phase Vo=250V Io=40A

Input : Vin=800V

Output : Vo=250V

Io=40A

Gate Drive : Vd=18V

R source=5Ω

R sink=2Ω

Q1 : SCT3080KL

SiC MOSFET(1200V 31A)

D1 : SCS220KG

SiC SBD(1200V 20A)

L1, L2 : 200uH

C1 : 10uF

Tj=100℃

DC-DC Buck Converter 2-Phase Vo=250V Io=40A Simulation Circuit

Io IL1

IL2

Iin

IL

Page 2: DC-DC Buck Converter 2-Phase Vo=250V Io=40A Simulation ... · DC-DC Buck Converter 2-Phase Vo=250V Io=40A Input : Vin=800V Iin Output : Vo=250V Io=40A Gate Drive : Vd=18V R source=5Ω

P. 1 © 2018 ROHM Co.,Ltd.

Simulation Waveform 1

Io, Iin, IL (0~3.00ms) Expansion (2.00ms~2.06ms)

IL(A)

Vin=800V Vo=250V Io=40A Tj=100℃

Io, Iin(A)

Red : Io(A)

Red : Io(A)

A

Green : Iin(A)

A

Green : Iin(A)

Blue : IL(A)

Red : IL1(A)

Green : IL2(A)

A

Blue : IL(A)

Red : IL1(A)

Green : IL2(A)

(2.00~2.06ms)

Page 3: DC-DC Buck Converter 2-Phase Vo=250V Io=40A Simulation ... · DC-DC Buck Converter 2-Phase Vo=250V Io=40A Input : Vin=800V Iin Output : Vo=250V Io=40A Gate Drive : Vd=18V R source=5Ω

P. 2 © 2018 ROHM Co.,Ltd.

Simulation Waveform 2

Q1_Loss, Pd, Vds, Id Vin=800V Vo=250V Io=40A Tj=100℃

Loss(mJ)

Pd(kW)

Vds(V)

Id(A)

D1_Loss, Pd, Vf, If Vin=800V Vo=250V Io=40A Tj=100℃

Loss(mJ)

Pd(kW)

Vf(V)

If(A)

Switching Loss(off)

Conduction Loss

Switching Loss(on)

I(D

1-a

node)

/ A

Page 4: DC-DC Buck Converter 2-Phase Vo=250V Io=40A Simulation ... · DC-DC Buck Converter 2-Phase Vo=250V Io=40A Input : Vin=800V Iin Output : Vo=250V Io=40A Gate Drive : Vd=18V R source=5Ω

P. 3 © 2018 ROHM Co.,Ltd.

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0 2 4 6 8 10 12

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ncy (

%)

0

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0 2 4 6 8 10 12

Po

wer

Dis

sip

ati

on

(W

)

Po (kW)

0

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300 400 500 600 700 800 900

Po

wer

Dis

sip

ati

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)

Vin (V)

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300 400 500 600 700 800 900

Eff

icie

ncy (

%)

Efficiency, Power Dissipation 1

Pd(W) Power Dissipation

D1,D2

Vin : 400V~800V Vo=250V Io=40A Tj=100℃

Efficiency : 100×Po/Pin

Efficiency (%)

Efficiency : 100×Po/Pin

Pd(W) Power Dissipation

D1,D2

Po : 2.5kW~10kW Vin=800V Vo=250V Tj=100℃

Efficiency (%)

Q1,Q2

Q1,Q2

Page 5: DC-DC Buck Converter 2-Phase Vo=250V Io=40A Simulation ... · DC-DC Buck Converter 2-Phase Vo=250V Io=40A Input : Vin=800V Iin Output : Vo=250V Io=40A Gate Drive : Vd=18V R source=5Ω

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

Eff

icie

ncy (

%)

0

10

20

30

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50

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

Po

wer

Dis

sip

ati

on

(W

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Tj (℃)

0

10

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50

100 200 300 400 500

Po

wer

Dis

sip

ati

on

(W

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Vo (V)

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100

100 200 300 400 500

Eff

icie

ncy (

%)

Efficiency, Power Dissipation 2

Pd(W) Power Dissipation

D1,D2

Vo : 200V~400V Vin=800V Io=40A Tj=100℃

Efficiency : 100×Po/Pin

Efficiency (%)

Efficiency : 100×Po/Pin

Pd(W) Power Dissipation

D1,D2

Tj : -25℃~125℃ Vin=800V Vo=250V Io=40A

Efficiency (%)

Q1,Q2 Q1,Q2