| 摘要 |
The power supply device (10) includes: a main command input (40) for the activation/deactivation of the power supply device; a power supply unit (22) that includes a discharge circuit (24) connecting the power output (V2) to a reference potential by means of a controlled switch (32); and a control circuit (26) of the controlled switch (32) of the discharge circuit (24). This control circuit (26) includes: a charge/discharge timing circuit (62) characterised by a relaxation time, a logic circuit (60; 160), one input of which is connected to the main command input (40) of the power supply device, and the other input is connected to the output of the timing circuit (62), and the output is connected for its control to the controlled switch (32). The first logic circuit (60) is adapted to that the controlled switch (32), is only turned on when the two following conditions are met: no activation signal is present on the main control input (40); and the output of the timing circuit (62) has reached a value greater than or equal to that provided at the end of the relaxation time. |
