一个新的超小型高密度AC/DC电源系列满足了低端市场上先进电源方案的需要。这些开关电源的特点是高效率、高电流密度。 这种电源不仅可节省电路板上的空间,使系统添加能实现其它功能的电路,同时可靠性更高(因为不需要散热扇),热性能和EMI性能也更为优化。它们还具有更大的设计灵活性,更好的产品封装形式以及更利于进行生产。 过去,许多公司生产的产品都差不多,设计者没有什么可选择的,只能选低功率AC/DC电源。这些产品又大又重,个均效率不到70％,封装功率密度不到4瓦/立方英寸,电流密度也不大。一个60W电源的尺寸一般是3×5×1.4英寸或者更大一些,而一个100W的电源 A new family of ultra-compact, high-density AC / DC power supplies meets the needs of advanced power solutions on the low end of the market. These switching power supplies are characterized by high efficiency and high current density. This power supply not only saves space on the board, allowing the system to add circuitry that enables other functions, but also offers higher reliability (because no fan is required) and better thermal and EMI performance. They also have greater design flexibility, better product packaging and greater ease of production. In the past, many companies have similar products, designers have no choice but to choose low-power AC / DC power supply. These products are large and heavy, each less than 70% efficient, packaging power density of less than 4 watts / cubic inch, the current density is not large. The size of a 60W power supply is generally 3 × 5 × 1.4 inches or larger, while a 100W power supply