IGBT Innovation Increases Solid-State Welder Versatility

摘要

EFD Induction, one of the major worldwide suppliers of solid-state welders, has now made further progress with the new Weldac G2 solid-state welder. Due to a new method of deploying the very rugged IGBT transistors at the high frequencies needed in many welding applications, the uptime of the new Weldac G2 series is significantly increased compared with solid-state welders using today's predominant MOSFET technology. The company's new patent makes it possible to use fewer, cheaper and more rugged transistors, known as IGBTs, in Weldac's high-frequency power modules. This makes the entire system more cost efficient and reliable. The IGBT transistors have been around for years, but their properties have limited their use to lower-frequency induction heat applications (typically up to 150kHz), such as welding of larger pipes.