On-board electric network system isolating circuit for DC/DC converters, and method for isolating an on-board electric network system from a DC/DC converter

• Main Authors: ROSENBERGER MARCUS, TRUNK MARTIN
• Format: Patent
• Language: Chinese; English
• Published: 15.02.2017
• 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; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION

The invention relates to an on-board electric network supply system (1), having a DC/DC converter (11) with at least one semiconductor rectifier element (4), having two supply connections (9a, 9b) for an on-board electric network system, which supply connections are connected at the output end to the DC/DC converter (11), having an isolating switch (5) which is coupled between one of the supply connections (9a, 9b) and the DC/DC converter (11), and having an on-board electric network system isolating circuit (10) which is designed to determine a reverse voltage (U, Ua, Ub) across at least one of the semiconductor rectifier elements (4), and to actuate the isolating switch (5), in order to decouple the on-board electric network system from the DC/DC converter (11), depending on a value of the determined reverse voltage (U, Ua, Ub). 本发明涉及种车载电网供电系统（1），其具有：直流电压转换器（11），所述直流电压转换器（11）具有至少个半导体整流元件（4）；用于车载电网的两个供电端子（9a、9b），所述两个供电端子（9a、9b）与直流电压转换器（11）在输出侧相耦合；隔离开关（5），所述隔离开关（5）被耦合在所述供电端子（9a、9b）之与直流电压转换器（11）之间；和车载电网隔离电路（10