power module

Abstract

The present application provides a power module, including a transformer, a first switch unit, and a second switch unit; the transformer includes a magnetic core and a level-wound winding wrapped on a winding post of the magnetic core; the level-wound winding includes a first winding , the first end of the first winding is electrically connected to the first switch unit and is located on the first side of the winding post. Viewed along the direction perpendicular to the first side, the first switch unit, the first end of the first winding and the winding The projections of the wire post on the first side overlap; the second end of the first winding is electrically connected to the second switch unit and is located on the second side of the winding post. Viewed along a direction perpendicular to the second side, the second switch Projections of the unit, the second end of the first winding and the winding post on the second side overlap. The power module provided by the present application reduces winding loss, reduces the occupied area of ​​the power module, and improves heat dissipation effect.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to a power module. Background technique [0002] With the improvement of human's requirements for intelligent life, the society's demand for data processing is increasingly strong. The global energy consumption in data processing reaches hundreds of billions or even trillions of kWh per year on average; and the floor area of ​​a large data center can reach tens of thousands of square meters. Therefore, high efficiency and high power density are key indicators for the healthy development of this industry. The key unit of the data center is the server, and its motherboard is usually composed of data processing chips such as a central processing unit (Central Processing Unit, CPU), chipset (Chipsets), memory, etc., their power supply and necessary peripheral components. [0003] With the improvement of server processing capacity per unit volume, it means that the number and...

AI Technical Summary

Problems solved by technology

However, in flat-wound transformers, due to the often large width of the winding copper foil, how to achieve low-loss connections between the windings and other components is very challenging

In low-voltage, high-current, high-frequency power modules, the number of turns of the secondary side winding is usually only one turn, and the additional loss caused by the imperfect connection between the winding and the device accounts for an increasing proportion of the total loss of the module. higher

Images