B-002. 1-Phase 2-level Full Bridge Inverter POUT=20kW

ROHM Solution Simulator Schematic Information

Simulation Parameters2023. Feb
64UG098E Rev.005

Simulation Circuit

Component
nameComponent

Default

Simulation
Setting Range

Vin

Input voltage

800VdcIo

Input current

70Aac

fmin

Switching frequency

50kHz

10k – 300kHz

fmax

Switching frequency

100kHz10k – 300kHz

Tj

Temperature

100°C

Vd1-4+

Gate Drive voltage H

18V

10 – 20V

Vd1-4-

Gate Drive voltage L0V-4 – 0V

Vdin

Signal voltage level

5V

Q1Ro
IQ1L

Component

Q1, Q2MOSSBDx2

Selectable

GD-IC1-4

Gate Driver

BM61S41RFV-C

R sink1-4

Resistor for sink

ESR18 1Ω

0.1 -R source1-4

Resistor for source

ESR18 2Ω

0.1 -

L1

Inductor

60µH

10µH - 2mHRo

Output Resistor{Po/Io/Io}© 2022 ROHM Co., Ltd.

GD-IC1

Simulation
Setting Range

Vd1GD-IC2

fmin

GD-IC3R sink2
R source2

Io

R sink3
R source3

R source1

Vd1+

IQ2L

L1

R sink1

Component
Name

IQ2H
C1

Vin

Devices
Default

Q2

IQ1H

Vd3-

GD-IC4

Vd3+
R sink4
R source4

fmax
Vdin

Vd2-

Vd2+

Vd4-Vd4+

Note: The Loss_calc component is a utility module to support power loss calculation and does not affect the simulation
P. 1
results of circuit operation or performance.

B-002. 1-Phase 2-level Full Bridge Inverter POUT=20kW

ROHM Solution Simulator Schematic Information
2023. Feb
64UG098E Rev.005

Selectable Devices
Component
nameComponent

Product No.

featureQ1, Q2MOSSBDx2

BSM080D12P2C008 (*)

800V, 120A

BSM120D12P2C005

1200V, 120A

* Default device© 2022 ROHM Co., Ltd.

Note) We have not been able to confirm operation with all combinations. Please read the disclaimer carefully.

P. 2

Simulation Waveform1
ROHM Solution Simulator Schematic Information
Io, IQ1, IQ2 (0～3.00ms)

Vin=800Vdc Po=20kW
Io=70Aac Tj=100℃

Io(A)2023. Feb
64UG098E Rev.005

Expansion (1.94～2.00ms)
Io(A)Blue : Io(A)

IQ1(A)

Blue : Io(A)(1.94～2.00ms)

IQ1(A)

Green : IQ1H(A)Green : IQ1H(A)Purple : IQ1L(A)Purple : IQ1L(A)IQ2(A)

IQ2(A)

Cyan : IQ2H(A)Cyan : IQ2H(A)Magenta : IQ2L(A)Magenta : IQ2L(A)© 2022 ROHM Co., Ltd.

P. 3

Efficiency, Power Dissipation
ROHM Solution Simulator Schematic Information
Vin : 600Vdc～800Vdc

Tj : -25℃～125℃

Io=70Aac Po=20kW
Tj=100℃

100

100

Efficiency : 100×Po/Pin
Efficiency ( %)Efficiency ( %)

98

96

94

600

Pd(W)

300

700

800

-40900400

Power Dissipation
Power Dissipation (W)500Power Dissipation (W)

94

90

90

Q1, Q2200

100-200Pd(W)2040608010012014080

100120140

Power Dissipation

300

Q1, Q2200

10000500© 2022 ROHM Co., Ltd.

Efficiency : 100×Po/Pin96

9292

400

2023. Feb
64UG098E Rev.005

Efficiency (%)

Efficiency (%)
98

Vin=800Vdc Io=70Aac
Po=20kW

600

700Vin(Vdc)

800

900-40-2002040

60Tj(℃)

P. 4

How to change the devices

ROHM Solution Simulator Schematic Information
2023. Feb
64UG098E Rev.005

Right-click on the device© 2022 ROHM Co., Ltd.

Select Properties

Pull down “SpiceLib Part”

Select the productP. 5

Loss Calculation Model

ROHM Solution Simulator Schematic Information

Loss Calculation Model outputs the instantaneous value of power loss and its integration.

Loss calculation model ‘Loss_calc’

2023. Feb
64UG098E Rev.005

Waveform example

Vds of MOSFET

Id of MOSFET

Vgs of MOSFET

𝑙𝑜𝑠𝑠_𝑜𝑢𝑡 𝑡 = 𝐼 𝑡 × 𝑉 𝑡𝑡

loss_out

𝑙𝑜𝑠𝑠_𝑖𝑛𝑡𝑒𝑔_𝑜𝑢𝑡 = න 𝑙𝑜𝑠𝑠_𝑜𝑢𝑡 𝑡 𝑑𝑡
0

loss_integ_out

I : Current through p1 to p1s
V : Voltage between p1s and p2© 2022 ROHM Co., Ltd.

P. 6

NoticeNotes
1) The information contained herein is subject to change without notice.
2) Before you use our Products, please contact our sales representative and verify the latest specifications :3) Although ROHM is continuously working to improve product reliability and quality, semiconductors can break down and malfunction due to various factors.
Therefore, in order to prevent personal injury or fire arising from failure, please take safetymeasures such as complying with the derating characteristics, implementing redundant andfire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no
responsibility for any damages arising out of the use of our Poducts beyond the rating specified byROHM.
4) Examples of application circuits, circuit constants and any other information contained herein areprovided only to illustrate the standard usage and operations of the Products. The peripheral
conditions must be taken into account when designing circuits for mass production.
5) The technical information specified herein is intended only to show the typical functions of andexamples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly,
any license to use or exercise intellectual property or other rights held by ROHM or any otherparties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use ofsuch technical information.
6) The Products specified in this document are not designed to be radiation tolerant.
7) For use of our Products in applications requiring a high degree of reliability (as exemplifiedbelow), please contact and consult with a ROHM representative : transportation equipment (i.e.
cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety
equipment, medical systems, servers, solar cells, and power transmission systems.
8) Do not use our Products in applications requiring extremely high reliability, such as aerospaceequipment, nuclear power control systems, and submarine repeaters.
9) ROHM shall have no responsibility for any damages or injury arising from non-compliance withthe recommended usage conditions and specifications contained herein.
10) ROHM has used reasonable care to ensure the accuracy of the information contained in thisdocument. However, ROHM does not warrants that such information is error-free, and ROHM
shall have no responsibility for any damages arising from any inaccuracy or misprint of suchinformation.
11) Please use the Products in accordance with any applicable environmental laws and regulations,such as the RoHS Directive. For more details, including RoHS compatibility, please contact a
ROHM sales office. ROHM shall have no responsibility for any damages or losses resulting
non-compliance with any applicable laws or regulations.
12) When providing our Products and technologies contained in this document to other countries,
you must abide by the procedures and provisions stipulated in all applicable export laws andregulations, including without limitation the US Export Administration Regulations and the Foreign
Exchange and Foreign Trade Act.
13) This document, in part or in whole, may not be reprinted or reproduced without prior consent ofROHM.

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R1102B