| 摘要 |
An inductive load driving device in which the rise of load current at an initial stage of driving can be executed at high speed includes a plurality of step-up circuits (21, 31), for alternately applying a high voltage to the same inductive load within a predetermined period of time, to thereby allow each load current to rise at a high speed; a holding current output circuit (43), for applying a predetermined voltage to the same inductive load after the load current has risen, to thereby hold the load current at a predetermined value; a plurality of switching means (46, 47), adapted to be switched in such a manner that the respective outputs of the plurality of step-up circuits (21, 31) and the holding current output circuit (43) can be alternately connected to the same inductive load; and a control logic circuit (44), for switching the plurality of switching means (46, 47) in a predetermined sequence.
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