Two features of isolated power supply "SiC+AC/DC"

In general, the input to industrial equipment is high voltage and high power. Therefore, the auxiliary power supply that supplies low voltage to control equipment also requires a high voltage input of 200 to 400V. Up until now, 1500V withstand voltage Si MOSFETs have been used, but their high on-resistance generates a lot of heat, requiring a heat sink.

Since ROHM 's "SCT2H12NZ" uses silicon carbide as a material, it achieves high voltage resistance, low on-resistance, and high efficiency auxiliary power supply compared to conventional silicon products. A reduction in heat sink parts for heat dissipation can be expected.

1. Significantly reduced heat generation with only 1.15Ω on-resistance!

ROHM's SiC-MOSFET SCT2H12NZ has achieved a withstand voltage of 1700V.
In addition, the on-resistance is 1.15Ω, which is 1/8th that of conventional MOSFETs, greatly reducing the heat generated by the FET and making it possible to reduce the size of the heat sink.

2. 最大6%の高効率、放熱部品の小型化を実現

"BD7682FJ-LB" is a quasi-resonant AC/DC converter control IC that maximizes the performance of SiC-MOSFETs.
By combining with SiC-MOSFET SCT2H12NZ, it is possible to achieve high efficiency of up to 6%. (According to ROHM Co., Ltd.)

"1700V SiC+AC DC" evaluation board for immediate evaluation

ROHM's "BD7682FJ-LB-EVK-402" evaluation board is equipped with an AD/DC converter control IC BD7682FJ-LB and a Si-MOSFET SCT2H12NZ, making it easy to evaluate the "1700V high withstand voltage isolated power supply". I can.

Application example

• Auxiliary power supply for industrial equipment such as FA and production equipment
• General-purpose inverter, auxiliary power supply for servo
• Auxiliary power supply for photovoltaic power generation system

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