Kinki Roentgen Industrial Co., Ltd.General Purpose Power Supplies
National Research and Development Corp.
Japan Science and Technology Agency: Research Results of Deployment Program (Super Cluster Program) Support Project

SiC dramatically reduces size - 5x smaller! 500W Output
Power Supply for X-Ray Generator

Overview

This general-purpose power supply system for X-ray generators adopts SiC Schottky barrier diodes to significantly increase efficiency and reduce system size through low-heat generation.

Results

Utilizing SiC decreases power loss by more than 2%. What’s more, ROHM SiC SBDs contribute to the miniaturization of external components and cooling mechanisms, making it possible to reduce the power supply volume per watt by 5x compared with conventional systems. This translates to significantly lower power consumption and requires less space vs conventional (non-SiC) systems.

500W Output Power Supply for X-Ray Generator

500W Output Power Supply for X-Ray Generator

ROHM Products Used

Nissin Giken Co., Ltd.Induction Heating
National Research and Development Corp.
Japan Science and Technology Agency: Research Results of Deployment Program (Super Cluster Program) Support Project

Achieves complete cooling • Conversion efficiency improved 10% 5kW/10kW/15kW
Output High-Frequency Power Supply
NET-5S/NET-10S/NET-15S

Overview

Leveraging the characteristics of SiC allows these high frequency power modules to improve efficiency, facilitating the switch to air cooling to eliminate problems associated with water, such as deterioration due to aging, significantly extending product life.

Results

・ Conversion efficiency increased by an average of 10% (vs Si IGBT)
・ Achieves complete air cooling (waterless)
・ Reduces processing time with a metal dissolver

5kW/10kW Output High Frequency Power Supply

5kW/10kW Output
High Frequency Power Supply

ROHM Products Used

Fukushima SiC Applied Giken Co., Ltd.Pulse Power Supply
National Research and Development Corp.
Japan Science and Technology Agency: Research Results of Deployment Program (Super Cluster Program) Support Project

Achieves steep rise time (30 to 50ns) even with high-voltage pulses (100kV) 100kV/240A Peak Output
Bipolar Pulse Generator (SiC Pulser)SiC-Pulser

Overview

Incorporating SiC MOSFETs into the design allows this general-purpose high-voltage pulse generator to deliver a steep pulse rise that improves productivity and quality in applications such as thin-film coating processes.

Results

Adopting SiC enables a rise time of 30 to 50ns - even with high-voltage pulses on the order of 100kV - while ensuring system stability.

SiC-Pulser

SiC-Pulser

ROHM Products Used

Kurita Seisakusho Co., Ltd.Pulse Power Supply
Japanese Science and Technology Agency's Super Cluster Program

Pulsed plasma frequency of 200kHz achieved by leveraging the high-frequency characteristics of SiC 1kW Output
Submerged Pulse Plasma Generator1kW Output Desktop MPP-HV04SiC Desktop MPP-HV84SiC

Overview

Adopting an SiC power device module enables designers to create a generator that can produce a pulsed plasma frequency of 200 kilohertz.

Results

Controlling the chemical reaction of plasma requires manipulation of pulses in the sub-μ to several μs range. Taking advantage of the capabilities of ROHM’s SiC modules makes it possible to achieve consistent ultra-short plasma pulses in the sub-μ region that was difficult to achieve with Si IGBTs.

ROHM Products Used

Kurita Seisakusho Co., Ltd.Pulse Power Supply
Japanese Science and Technology Agency's Super Cluster Program

High-power plasma generator provides customized support from 30kHz to 300kHz 3kW Output Model
Submerged Pulse Plasma GeneratorStandard MPP-HV*Series SiC

Overview

Provides a high-power plasma reaction field from the conventional 30kHz region to 200kHz, made possible only through SiC. Enables customized support matched to user requirements, i.e., high power, 300kHz.

Results

Leveraging the high-temperature characteristics of SiC power devices successfully improves overload tolerance, even in short-circuit mode that often occurs on the plasma-load side. This tolerance for high-temperature operation improves overall system efficiency.

ROHM Products Used

IKS Co., Ltd.Energy
National Research and Development Corp. Japan Science and Technology Agency: Research Results of Deployment Program (Super Cluster Program) Support Project

SiC power module reduces power loss by more than 40%10kW Hybrid Power Storage Systems I_DENCON 10kW

Overview

This micro smart-grid system connects to the DC bus of power supplies such as storage batteries, generators, and PV*/EV* chargers and dischargers, enabling optimized input/output control that reduces power loss by up to 70% compared to current commercial products.

*PV: Photovoltaic (solar) power generation system
*EV: Electric vehicle

Results

In this application example, adopting SiC power modules reduces power loss by over 40% compared to conventional Si devices, even when used in just the converter block.

10kW Hybrid Power Storage System

10kW Hybrid Power Storage System

ROHM Products Used

IKS Co., Ltd.Energy

SiC power module reduces power loss by more than 40% 50kW Hybrid Power Storage SystemI_DENCON 50kW

Overview

This micro smart-grid system connects to the DC bus of power supplies such as storage batteries, generators, and PV*/EV* chargers and dischargers, enabling optimized input/output control that reduces power loss by up to 70% compared to current commercial products.

*PV: Photovoltaic (solar) power generation system
*EV: Electric vehicle

Results

In this application example, adopting SiC power modules reduces power loss by over 40% compared to conventional Si devices, even when used in just the converter block.

50kW Hybrid Power Storage System(®MSEG)

50kW Hybrid Power Storage System(®MSEG)

Headspring Inc.SiC Drive Tools

Compact experimental tool makes it easy to evaluate and drive SiC devices Experimental Tool for SiC Drive and Evaluation
Circuit Block for Power Electronics (HGCB-2A-401350)

Overview

Experimental equipment for driving and evaluating SiC devices. This tool verifies the responsiveness and loss of SiC devices in the upstream processes of product development, such as R&D or the function prototyping phase.

Results

The compact form factor with integrated SiC MOSFET can fit in the palm of your hand. It packs a whopping 7.0kW of power, enabling high-speed switching of SiC devices up to 200kHz. In addition, the versatile design can be combined with the company's controllers.

Circuit Block for Power Electronics

 

Circuit Block for Power Electronics(大きさ比較)

Circuit Block for Power Electronics

ROHM Products Used

Tamura Manufacturing Co., Ltd.SiC Drive Tools

All-in-one design • Low common mode noise • High-speed response Gate Driver ModulesDM Series

Overview

A dedicated gate drive module for SiC MOSFETs, this all-in-one design incorporates a DC/DC converter and specialized drive circuit ideal for power conditioners, inverters, converters, and motor drive applications.

Results

Enables standalone drive of SiC power modules. The built-in transformer achieves low common-mode noise, while magnetic coupling ensures fast response. Bonded substrates that combine SiC power modules can also be provided.

SiC driver module 2DM180506CM/2DM180206CM

SiC driver module 2DM180506CM/2DM180206CM