| 摘要 |
PURPOSE: A method and an apparatus for controlling a load current are provided to easily control the temperature of a plurality of loads by individually controlling the current of the loads. CONSTITUTION: A power supply unit(120) includes a P type main power supply unit, an N type main power supply unit, (n-1) P type sub power supply units, and (n-1) N type sub power supply units. A controller(130) individually controls the current flowing in n loads(110) by controlling one operation state or more among the P type main power supply unit, the N type main power supply unit, the (n-1) P type sub power supply unit, and the (n-1) sub power device. The P type main power device is connected to the left side of the first load among the n loads. The N type main power supply unit is connected to the right side of the n-th load among the n loads.
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