| 摘要 |
PURPOSE: A voltage control device for electric vehicle is provided to minimize an abnormal operating region by amplifying an output voltage of a battery before the output voltage of the battery approaches a minimum limit level. CONSTITUTION: A voltage control device for electric vehicle includes a control portion(10), the first switching portion, the second switching portion, an amplification portion(30), and an alarm portion(40). The control portion(10) controls the amplification of a voltage of a battery when a charging state of a battery approaches to a minimum limit voltage. The first switching portion performs a switching operation according to a control signal of the control portion(10). The second switching portion is switched by the switching operation of the first switching portion. The amplification portion(30) amplifies the voltage of the battery to the predetermined level. The alarm portion(40) is turned on or off by the control signal of the control portion(10).
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