IXYS Corporation (NASDAQ: IXYS), a leader in power semiconductors and integrated circuits for power conversion and motion control applications, announced today that it is extending the Surface Mount Power Device (SMPD) range to include fast rectifier products which are essential in many topologies and are used in power semiconductor solutions for switch mode power supplies (SMPS), converters/inverters and uninterruptible power supplies (UPS).
The DHG60U1200V is an example of a fast rectifier bridge with an output current of 62A and a repetitive reverse blocking voltage of 1200V. This three phase rectifier is using SONIC TM Diodes, specified with a reverse recovery time of only 0.2 micro seconds. The Sonic diode has a soft recovery behavior while maintaining a low reverse recovery current. The low reverse recovery current and faster turn off reduces switching losses and noise that is usually generated by standard rectifier diodes. This product performs optimally in circuits dealing with higher frequency alternating current applications.
The IXYS SMPD, which has been in volume production since its introduction in 2010, is an innovative power module which can be easily surface mounted on a printed circuit board (PCB) using standard pick and place and reflow soldering process. It is a preferable automated PCB assembly process for the industry without costly screws, cables, bus-bars or hand soldered contacts that have been used for standard power modules in the past. Additionally, these products are much lighter in weight than comparable standard power modules.
“Expanding the SMPD portfolio with the fast rectifier products enables customers to build more power inverters completely with surface mounted solutions since the SMPD with standard rectifier, IGBT and MOSFET die technologies are already available. In many applications the frequency of the generated AC by inverters is higher than the typical 50-60 Hz line frequencies. Furthermore there are other power system applications where rectification of higher AC frequency is needed. IXYS is targeting to further expand the SMPD portfolio with other configurations so more topologies can be designed. The SMPDs are then used as simple ‘building blocks’; thereby creating a heat-spreading advance which enables a reduction of the heat sink dimension,” commented Mr. Jeroen van Zeeland, head of marketing at IXYS GmbH.