| 摘要 |
<p>The invention relates to a power supply device for a logic unit (1), comprising a control member (7) for transmitting a control voltage (6), a power relay (3) for transmitting a power voltage (2) when actuated, an electronic stage (8) controlling the power relay (3) when the electronic stage (8) receives a control voltage (6, 22) from the control member (7) or the logic unit (1), a voltage regulator (12) transmitting a supply voltage (20) to the logic unit (1) when receiving the power voltage (2) from the power relay (3) and a control voltage (6, 23), and an activation means (17) capable of transmitting an additional control voltage (24) to the voltage regulator (12) when the power relay (3) transmits the power voltage (2). Application in calculators for automotive vehicles and in the detection of a failure of the relay stage (3, 8).</p> |
