具有高功率因数和无源电流平衡的Buck-Boost-Buck型单开关多串LED驱动器

An integrated buck–boost–buck-type single-switch multistring resonant light-emitting diode (LED) driver is proposed and analyzed. It combines buck–boost and buck converters to achieve passive current balancing and power factor correction. With this circuit configuration, the proposed LED driver employs only one low-side connection active switch, resulting in a very simple control requirement invol...