VEHICLE CHARGER COMPRISING A DC-TO-DC CONVERTER

The invention relates to a battery charger (400) on board a vehicle, including: - a main voltage converter including: - at least one transformer (TF) including at least one primary and at least one secondary; - at least one upstream bridge (PR2) of controlled transistors supplying power to the prima...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	BAUDESSON, Philippe
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS SYSTEMS FOR STORING ELECTRIC ENERGY TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to a battery charger (400) on board a vehicle, including: - a main voltage converter including: - at least one transformer (TF) including at least one primary and at least one secondary; - at least one upstream bridge (PR2) of controlled transistors supplying power to the primary of the transformer (TF); - at least one downstream bridge (PR3) of controlled transistors that are supplied with power by the secondary of the transformer, allowing, when current- and/or voltage-controlled, a first voltage for supplying power to a battery to be charged to be generated, the downstream bridge including at least two branches (Leg1, Leg2); - at least one isolating switch (TR) that is connected directly or via an inductor (L5) to a midpoint (T1) of a first branch (Leg1) of the downstream bridge, allowing, when open, the downstream bridge to be used to deliver the first voltage and, when closed, at least said first branch of the downstream bridge to be used to generate, by controlling all or some of the transistors of the downstream bridge that is supplied with power by said battery, a second voltage that is different from the first voltage; and - a circuit for monitoring the transistors (410).