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发明公开
CN108809158A 用于电机的驱动电路和车辆用灯具 有权

用于电机的驱动电路和车辆用灯具
摘要：
本发明涉及用于电机的驱动电路和车辆用灯具。具体地，一种用于电机(24)的驱动电路(100)用在光扫描式车辆用灯具(1)中。所述驱动电路(100)包括输出级(110)、控制所述输出级(110)的预驱动器(120)、产生被限制成不超过给定电压的中间电压的钳位电路(130)、和升压电路(140)，所述升压电路接收所述中间电压并向所述预驱动器(120)的电源端子(122)供给比所述中间电压高的内部电源电压。
摘要（英）：

The invention relates to a drive circuit for a motor and a vehicular lamp. Specifically, a drive circuit for a motor is used in a light scanning vehicular lamp. The drive circuit includes an output stage, a pre-driver that controls the output stage, a clamp circuit that generates intermediate voltage that is limited so as not to exceed given voltage, and a booster circuit that receives the intermediate voltage and supplies internal power-supply voltage higher than the intermediate voltage to a power supply terminal of the pre-driver.

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