Design

Evaluation Board for IPMs of the L1/S1 Series

29th March 2010
ES Admin
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Mitsubishi Electric is introducing an Evaluation Board for its Intelligent Power Modules (IPMs) of the entire L1/S1 Series. The new board named EVBL1S1XX enable the design engineer to functionally test the features and the performance of these IPMs from Mitsubishi Electric. The board can be used as a reference design regarding layout and selected components.
Basically, the EVBL1S1XX’s circuit is based on the interface and supply circuit recommendations specified in the L1/S1 Series IPM datasheets.
Two different IPM connectors are available onboard to match both L1 and S1 devices. In terms of control signals high-active or low-active signals may be applied through the standard 2.54mm pin connectors. Only one single 24V supply is required to power the EVBL1S1XX including control and driver part of the IPM. A safety insulation barrier between the control input of the evaluation board and the IPM is achieved by DC-DC converters in conjunction with photo couplers.

Mitsubishi Electric’s IPMs of the L1-Series are equipped with low-loss IGBT chips based on full gate CSTBT™ (Carrier-Stored Trench Gate Bipolar Transistor) technology. Protection functions against short circuit, over-temperature and supply under voltage are included. The L1-Series IPMs are mechanically compatible to the existing L-Series IPMs, however, they provide a better trade off between on-state and switching losses at higher switching frequencies, better IGBT temperature monitoring and an improved power cycling capability.
The L1-Series IPMs are available for voltage ratings of 600V/1200V in three different packages for rated currents between 25A and 300A.

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