| 摘要 |
Systems and methods are presented for an improved power adapter. On one potential embodiment, an improved power adapter is described that is made up of an AC input; a rectifier coupled to the AC input; a power factor correction circuit coupled to the rectifier; and a burst switch circuit coupled to the power factor correction circuit. The burst switch circuit provides power to a DC output via a set of FET drivers, a set of FETs, and a transformer, and wherein the burst switch circuit provides power exclusively in a burst mode using a feedback input from the DC output. The transformer may be composed of a first winding coupled to the set of FETs, and second, third, fourth, and fifth windings each coupled to the first winding, wherein the second winding and the third winding are embedded in a printed circuit board; and wherein the fourth and fifth winding each comprise a conductive ribbon that loops around a transformer core. In additional embodiments, multiple monitoring circuits are integrated with DC tip and USB outputs in a power adapter with a high power density. |
