| 摘要 |
In an electrical load driver, a plurality of common terminals to which a plurality of electrical loads are connected and to which power is supplied are provided. A plurality of switching elements are provided in the plurality of common terminals and configured to be switched on or off, respectively. An impedance element to which the supplied power is fetched to be applied is provided. A first unit compares a level of the power across the impedance element with a predetermined threshold level of power when at least one of the switching elements is in on state, and deterazines whether an overcurrent occurs based on the compared result. A second unit changes the predetermined threshold level based on whether an on periods of the plurality of switching elements overlap with each other.
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