深圳市太航半导体有限公司

XC6SLX45-2CSG324I

Today, the main use of energy is in industrial processes, particularly driving motors. But data centers aren't far behind, and demand from electric vehicle (EV) charging is set to explode in the years ahead. These applications, along with many others, from home appliances to phone chargers, have all seen technology innovations to minimize power draw, typically using "smart" techniques such as variable-frequency drives for motors. This entails using electronic power supplies, and the spotlight is now firmly on them to show ever lower conversion losses. Here, we will look at how designers now have access to semiconductor switch technologies that make highly efficient power converters easier to realize.

Power Conversion Challenges and Topologies

We all say "power converters," but this is a bit of a misnomer—the ideal is to achieve exactly the same power output from the device as is input. This is what power converter designers strive for: To convert electrical energy from a distribution system, typically AC mains or a DC bus, to a different DC or sometimes AC voltage, all without dissipating power as waste heat. Sometimes galvanic isolation is necessary through transformer coupling, for safety or functional reasons; the output voltage can be higher or lower than the input, actively regulated or not, but in all cases the "switched mode" technique has become ubiquitous.

XC6SLX45-2CSG324I

XC6SLX45-2CSG324I