Patent ID: 9153961
Filing Date: 2015-10-06
Classification: B64D,H02J,H02M

Abstract:
1. An interface device between a direct or rectified alternating current electrical network and energy consumer systems, including a DC-DC input converter which is to be connected at input of the network, and several DC-DC output converters to be connected at input of the energy consumer systems, wherein the input converter includes several magnetically coupled windings, positioned around the same magnetic core, among which: a first winding connected on one side with a reverse blocking module, and on the other side with a first semiconductor chopper device, so that the reverse block module, the first winding, and the first semiconductor chopper device form together a serial assembly having two ends which are to be connected to the network; second and third windings, each having a first end connected to a first end of the output converters through, respectively, first and second reverse blocking modules, and a second end connected to a second input of the output converters through, in the case of the third winding, a switching cell, wherein this cell is controlled by a signal which is complementary to a signal signaling that the network is operating correctly; a fourth winding having an end which is to be connected to the network, through a second semiconductor chopper device; and wherein the interface device also includes: a buffer capacitor having a first end connected to the first inputs of the output converters, and a second end, to which a reference voltage is applied, isolated from the network; a power reserve having an end which is to be connected to the network and a second end connected to the other end of the fourth winding; and wherein the input converter also includes: a control module connected at its input to the first end of the buffer capacitor, and at its output to the first and to the second semiconductor chopper devices in order to control them, wherein this control module provides galvanic isolation of the output converters with regard to the network, and wherein the input converter includes another switching cell installed between the second end of the second winding and the second inputs of the output converters, and controlled by the signal signaling that the network is operating correctly.