Patent ID: 9112369
Filing Date: 2015-08-18
Classification: H02J,H02M

Abstract:
1. A switched-mode power supply device including: a charger intended to be connected at a first side to a network comprising one of a direct current electrical network and a rectified alternating current electrical network, a power reserve connected to a second side of the charger, output DC-DC converters delivering regulated output voltages, the output converters being connected by one input to the first side of the charger, wherein the charger is a current bidirectional, voltage unidirectional converter which, in a first phase, enables the power reserve to be recharged and maintained charged from the network, wherein the output converters are powered by the network and, in a second phase, in the presence of a power brown-out of the network, enables the power reserve to be discharged to power the output converters, and wherein the power supply device also includes a reverse blocking module connected to the first side of the charger to disconnect the charger and the output converters of the network during the second phase, wherein a bus with two conductors connects the first side of the charger to the input of the output converters, wherein the charger includes at least one switching cell with two switches which have a common point connected at one end to the power reserve, and at the other end to a first conductor of the bus, wherein an inductor is inserted between a second conductor of the bus and the point common to both switches, wherein a control unit controls the switches of said at least one switching cell, wherein the control unit includes: wherein the reverse blocking module is controlled by the discharge authorization signals.