发明名称 |
DC converter for a motor vehicle |
摘要 |
A step-up converter converts a battery voltage to an intermediate voltage. The intermediate voltage is greater than or equal to the battery voltage. A step-down converter receives the intermediate voltage supplied by the step-up converter and controls an output voltage which is less than or equal to the intermediate voltage. The step-up converter controls the intermediate voltage in an open loop depending on the battery voltage, at least if the battery voltage is lower than a first predetermined value, and at least if at the same time the load on the output of the step-up converter exceeds a minimum load. |
申请公布号 |
US8872498(B2) |
申请公布日期 |
2014.10.28 |
申请号 |
US201013145815 |
申请日期 |
2010.01.18 |
申请人 |
Continental Automotive GmbH |
发明人 |
Goetzenberger Martin;Sylla Sven |
分类号 |
G05F5/00;H02M3/158 |
主分类号 |
G05F5/00 |
代理机构 |
|
代理人 |
Greenberg Laurence A.;Stemer Werner H.;Locher Ralph E. |
主权项 |
1. A DC/DC voltage converter for a motor vehicle having a battery providing a battery voltage, the DC/DC voltage converter comprising:
a step-up converter for converting the battery voltage to an intermediate voltage, with the intermediate voltage being greater than or equal to the battery voltage, said step-up converter configured for open-loop control, at least in one operating mode, of the intermediate voltage in dependence on the battery voltage at a value which is not equal to the battery voltage; and a step-down converter for receiving the intermediate voltage output from said step-up converter and for regulating of an output voltage being less than or equal to the intermediate voltage; said step-up converter including a switch and a control circuit configured to open and close said switch to step-up said battery voltage when the battery voltage is less than a first predetermined value, and to permanently open said switch when the battery voltage is greater than the first predetermined value. |
地址 |
Hannover DE |