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Switching Power Converters, 2nd Edition by Dorin O. Neacsu

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14

Parallel and Interleaved Power Converters

14.1    COMPARISON BETWEEN CONVERTERS BUILT OF HIGH-POWER DEVICES AND SOLUTIONS BASED ON MULTIPLE PARALLEL LOWER-POWER DEVICES

Chapter 1 showed the current interest in parallel or interleaved converters used for grid interfaces or motor drives. This interest has risen due to the continuous development in power semiconductor technologies leading to high-power single-die insulated gate bipolar transistors (IGBTs).

The first step toward parallel converters was hybrid (custom) IGBTs. These modules parallel IGBTs at silicon level and have many advantages. First, these chips and gate resistors are placed very close together, reducing parasitic inductance between chips. This ensures uniform temperature ...

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