Silicon Carbide Applications
MERSEN is your solution partner for Silicon Carbide (SiC) applications. The next generation of Power Conversion Systems Enabled by SiC Power Devices is now a reality. As the global trends promote greener energy with more strict regulations and standards, newer and more efficient switching devices such as Silicon Carbide(SiC) devices are gaining acceptance in various markets from transportation to solar industries.
Compared to silicon devices, SiC devices switching can exceed several 100’s of kHz, offering substantial improvements in efficiency. SiC devices also provide enhanced power density and higher operating temperature, making them a very attractive alternative to bigger and less efficient silicon family of devices. As SiC devices can operate at much higher switching frequencies, parasitic inductance and “skin effect” phenomena become crucial considerations for bus bar designs. Mersen engineering teams can work closely with customers to design bus bars to compensate for “skin effect” and to build the most efficiently cooled power bus bar solution.
Connecting a complex network including Power IGBTs, Diodes, Resistors, and Film Capacitors, this multi-layer epoxy edge-filled bus bar provides a compact low inductance solution. Thirty-two bushings are brazed into position and maintain tightly controlled coplanar mounting surfaces on both top and bottom. Alternating the plus and minus layers throughout the assembly counters the skin effect of high frequencies.
High-Frequency Welding
Size: 5” x 9” | Voltage: 115VDC | Current: 125A | Thickness: .030” & .060”
High frequency applications present a unique thermal challenge requiring the addition of water-cooling for efficient operation. When thermal considerations exceed conventional means of heat dissipation, one option is to add water-cooling to the system. This design contains five cooling lines soldered directly on to the epoxy powder coated conductors to maintain a constant temperature. Due to the high frequency of the AC voltage, “skin effect” plays a big role in the heat created from the bus and without this additional cooling, the bus would surely overheat.
High Frequency Inverter
Size: 9” x 32” | Thickness: .030” & .060” | Voltage: 600V | Current: 700A
