MULTI-DIRECTIONAL CONVERTER COMPRISING THREE PORTS AND A SINGLE TRANSFORMER FOR ELECTRIC VEHICLES

摘要

The invention relates to a charging device including a reversible AC/DC converter enabling power to be supplied to two outlets that have different voltages. Said charging device is particularly suitable for use as an on-board electric motor vehicle device. The device enables power to be supplied to both a traction battery, at a relatively high voltage, and apparatuses from the very low-voltage grid. Said device has a small overall size and low weight. The invention rests on a DC/DC converter (in the AC/DC converter) having multiple reversible outlets that includes a single transformer.

主权项

1. Charging device (2) for a motorised appliance (6), the motorised appliance (6) comprising a battery (5) and equipment (7a, 7b, 7c) among which a secondary battery (7a), the charging device comprising a first conversion module (3) and a second conversion module (4) connected to the first conversion module (3), wherein:
the first conversion module (3) is also adapted for being connected to an alternating current source (1); the second conversion module (4) is also adapted for being connected to the battery (5), and for being connected to the equipment (7a, 7b, 7c), and said second conversion module (4) comprises a single transformer (11); the charging device (2) being adapted for: being supplied by the alternating current source (1) with input alternating current, converting, in the first conversion module (3), this input alternating current into direct current having a first voltage, and furthermore: converting, in the second conversion module (4), the direct current having the first voltage into direct current having a second voltage, and supplying the battery (5) with this direct current having the second voltage, and converting, in the second conversion module (4), the direct current having the first voltage into direct current having a third voltage, and supplying the equipment (7a, 7b, 7c) with this direct current having the third voltage; and being supplied by the battery (5) with direct current having the second voltage, converting, in the second conversion module (4), this direct current having the second voltage into direct current having the third voltage, and supplying the equipment (7a, 7b, 7c) with this direct current having the third voltage; and being supplied by the secondary battery (7a) with direct current having the third voltage, and converting, in the second conversion module (4), this direct current having the third voltage into direct current having the first voltage, in order to supply the first conversion module (3).