New diode technologies enable power supply designers to optimize topology choice and benefit from performance enhancements Choosing from multiple diode technologies for Boost CCM PFC and DC-DC converters

摘要

In power electronic systems, the performance of rectifier diodes is often a key factor in the overall system operation, despite their superficial simplicity. Systems employing factor correction and applications such as motor drives, DC-AC inverters, bridge converters and DC-DC converters all place great stress on diodes. When a power electronic system is scanned for temperature rise while operating, the components found to be dissipating most heat will more often than not be the rectifier diodes. Time spent at the design stage in selecting the best combination of diode parameters for a given application will be well-rewarded in terms of increased efficiency and reduced system cost.