| 摘要 |
A circuit (1) adapted to provide two different voltage levels to components of a system comprising a DC/DC converter (5) located between a first voltage supply (2b) and a second higher voltage supply (2a), said DC/DC converter (5) comprising a first high-side semiconductor switch (6) arranged in series with said power supplies (2a,2b), and a second low-side semiconductor switch (7) connected to ground (GND), and comprising a protection relay (9) located between the low voltage supply (2b) and the DC/DC converter (5). |
