A DC-DC converter includes: a first three-phase bridge module, a resonance module, a second three-phase bridge module, and a controller. The second three-phase bridge module is configured to: adjust frequency of an input signal of a battery module during discharging; and in a light load mode, the controller is configured to: control the first three-phase bridge module to switch to a two-phase bridge arm input or a one-phase bridge arm input and the second three-phase bridge module to switch to a two-phase bridge arm output, and control the second three-phase bridge module to switch to a two-phase bridge arm input or a one-phase bridge arm input and the first three-phase bridge module to switch to a two-phase bridge arm output during discharging, thereby reducing a switch loss in the light load mode.
DCDC CONVERTER, VEHICLE-MOUNTED CHARGER AND ELECTRIC VEHICLE
2021-03-04
Patent
Electronic Resource
English
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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