Powerex Announces NFM-Series IGBT for Higher Frequency Applications

Powerex Inc. announced its new NFM-Series IGBT. Optimized for applications in frequencies of operation between 20 and 30kHz, the company claims that the new NFM-Series not only fills a requirement in medium to high frequency applications but also does so with what the company claims is the only single device of its type on the market.

Standard industrial IGBT modules are optimized for hard switched PWM inverters with carrier frequencies less than 20kHz to achieve low VCE (sat). However, some applications, such as induction heating, require a higher frequency (30 to 60kHz) operation where low E SW (off) is essential. Powerex claims to have met this high frequency requirement with its NFH-Series line, which is most effective in applications requiring a soft turn-on.

Rated at 1200V, the NFM-Series offers low loss and hard switching at 20 to 30kHz. Duals are available from 100 to 300A in a 108 x 62 mm mounting hole package while singles are available in the higher current range of 400 to 600A with the same mounting. The single configuration on this device is the only one currently available on the market. The NFM-Series is targeted for power supplies for medical equipment and other high frequency H-Bridge power applications, such as induction heating and welders.

Sample quantities are available immediately in prices ranging from $65 ~ $151, depending upon the rating.