A large-power vehicle-mounted DC/DC converter

• Main Authors: LIANG ZHIYI, YE JIANKUI, ZHANG FA, YE YANZHANG, TANG JIANZHONG, LI BIN, CHEN XIANXIN
• Format: Patent
• Language: Chinese; English
• Published: 10.07.2013
• Subjects: 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; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The utility model discloses a large-power vehicle-mounted DC/DC converter comprising a DC input module and a voltage converting module. The DC input module comprises a relay, a power source module, an auxiliary power supply module, and a precharging resistor module. The coil point is connected with the positive pole of a vehicle DC power supply. One end of the power source module is connected with the negative pole of the vehicle DC power supply, while the other end of the power source module is connected with the normally-opened point of the relay. The auxiliary power supply module is connected with the two ends of the power source module. One end of the precharging resistor module is connected with the input end of the power source module, while the other end of the precharging resistor module is connected with the normally-closed point of the relay. The precharging resistor module is designed for preventing overlarge charging current when the DC/DC converter is suddenly powered on. Specifically, when the D