Three-phase inverter shrinks appliance motor drives

The IRAM630-1562F Intelligent Power Module (IPM) features an integrated PFC and inverter stage. The device shrinks designs of energy-efficient appliance and light industrial motor drive applications including air conditioners and washing machines.

The Intelligent Power Module combines trench IGBTs with a three-phase, high-voltage gate drive IC and PFC input stage, integrating more than 30 components into a single isolated package. It also features a built-in over-temperature/over-current protection, an integrated under-voltage lockout function, and a built-in temperature monitor. Other integrated features such as bootstrap diodes for the high-side drive function and single polarity power supply simplify the system design while reducing overall cost. An open emitter configuration enables multi-shunt current feedback for a vector control loop, in V/Hz control loop, with no circuit layout limitation.