Скачать с ютуб Seamless Software Adaptation of High Performance Power Modules in Power Distribution Networks в хорошем качестве

Seamless Software Adaptation of High Performance Power Modules in Power Distribution Networks

by Andreas Reiter - Microchip Technology Brick DC-DC converters are widely used in data center, telecommunication, automotive and aerospace applications, converting 48 V down to voltages such as 3.3 V, 5 V, 9 V, 12 V or 15 V. There is a continuous push towards higher power density while high performance loads increasingly affect power integrity. In this lecture a Gallium-Nitrite (eGaN) based, non-isolated, interleaved 300 W 16th brick power module is introduced, supporting up to 25 A output current at output voltages of 12 V at a maximum power density of 730 W/in³. The digital control system, implemented on a dsPIC33C® DSC, is used to fully exploit the high performance of eGaN FETs in fast switching Intermediate Bus Converter (IBC) applications. The digital feedback loop implementation is based on a PWM-steering scheme ensuring high-speed current balancing while providing high bandwidth response minimizing the size of the energy storage between converter and down-stream power distribution segment. The loop control further supports tuning of the converter output impedance to the total effective ESR of the decoupling capacitance. This allows end-users to tune the converter for an existing design rather than modifying the load to support the power module.