| 摘要 |
PURPOSE: A driving control apparatus of a preheating device is provided to offer the stability of equipment through an algorithm and a circuit for preventing damages to a sink driver. CONSTITUTION: A driving control apparatus of a preheating device comprises a preheating unit(101), a preheating unit relay(102), a power source driver(103), a sink driver(104), and a controller(105). The preheating unit relay selectively supplies power to the preheating unit. The power source driver is connected to the first power line of the preheating unit relay, and controls the input of the first power line. The sink driver is connected to the ground connection unit of the preheating unit relay, and controls the ground connection unit. The controller delivers driving signals to the power source driver and sink driver to supply power to the preheating unit when an ignition on signal is inputted. The controller stops supplying the power to the preheating unit relay by turning off the power source driver if preheating operation is finished after a predetermined time.
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