| 摘要 |
<p>The invention relates to a device (1) for securely controlling a heater module (3) comprising at least one heating resistor (31, 33) suitable for being connected in series between a high-voltage conductor (5) and a ground conductor (7) of a high-voltage electrical network (9). The device (1) includes: a first electronic switch (11) connected in series to said at least one heating resistor (31, 33); a second electronic switch (15) connected in series to said at least one heating resistor (31, 33) and to the first electronic switch (11); first and second control modules (13, 17) suitable for controlling the first and second electronic switches (11), respectively, the second control module (17) floating with respect to the first control module (13); and chopping conversion means (19) connected to a low-voltage electrical network (21) and suitable for independently supplying the first control module (13) and the second control module (17) with power, the conversion means (19) including galvanic insulation between the low-voltage electrical network (21) and the high-voltage electrical network (9).</p> |
