Patent ID: 8866454
Filing Date: 2014-10-21
Classification: H02M

Abstract:
1. A DC-DC converter, the DC-DC converter comprising first and second input terminals and first and second output terminals, a buck-boost converter operable in a boost mode and in a buck mode and comprising a rectifying device and a first switch electrically coupled to the first input terminal and arranged for electrically coupling the first input terminal to the first output terminal via the rectifying device and further comprising an inductor electrically coupled between the second output terminal and a node between the first switch and the rectifying device, and a capacitor electrically coupled between the first and second output terminals, a second switch electrically coupled to the second input terminal and arranged for coupling the second input terminal to the second output terminal, and a switching device between the first output terminal and the second input terminal, wherein the first output terminal and the second input terminal are of the same polarity, wherein the second switch and the switching device are configured so as to be able to disable the boost mode.