A dual DC-DC converter includes a controller signaling a plurality of switch sets for charging a first battery connected to a first DC output and a second battery connected to a second DC output. Each of the switch sets includes a high-side switch configured to switch a DC electrical input to a common node and a low-side switch configured to switch a ground to the common node. A filter capacitor is connected between each of the DC outputs and a ground. A mode switch is connected between the DC outputs and is opened to allow the dual DC-DC converter to be operated with each of the DC outputs having different voltages for independently charging the batteries at different states of charge. The mode switch is closed when the voltages on each of the DC outputs are equal or within a predetermined threshold.
双DC‑DC转换器包括控制器,该控制器向多个开关组发信号,以对连接至第一DC输出端的第一电池和连接至第二DC输出端的第二电池进行充电。开关组中的每一个包括:高侧开关,被配置成将DC电输入端切换至公共节点;以及低侧开关,被配置成将接地切换至公共节点。在DC输出端中的每一个与接地之间连接有滤波电容器。在DC输出端之间连接有模式开关,并且断开模式开关以允许双DC‑DC转换器在DC输出端中的每一个具有不同电压的情况下操作,以对在不同的充电状态下的电池独立地进行充电。在DC输出端中的每一个上的电压相等或者在预定阈值内的情况下,接通模式开关。
DUAL DC-DC CONVERTER
双DC-DC转换器
2021-04-09
Patent
Electronic Resource
Chinese
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 |