And this paper analyzes the characteristic of white LED, designs constant-current drive circuit, so that guaranteeing the quality of light.
并且对白光led特性进行分析，设计了恒流驱动电路，保证发光质量。
Unique circuit design, using high-performance constant-current drive power, thereby achieving a highly efficient energy-saving purposes.
独特电路设计，采用高性能恒流驱动电源，真正达到了高效节能的目的。
Unique circuit design, using high-performance constant-current drive power, really reached efficient energy-saving.
独特电路设计，采用高性能恒流驱动电源，真正达到了高效节能的目的。
When designing the step motor drive circuit of 5 phase 10 pat, 89c2051 is adopted as the Loop allotter. The VMOS is adopted in power elements. It is designed as chopper-type constant current circuit.
设计五相十拍步进电动机驱动电路时选择了89c 2051作为环形分配器，而功率器件选用电压型的VMOS管。
When designing the step motor drive circuit of 5 phase 10 pat, 89c2051 is adopted as the Loop allotter. The VMOS is adopted in power elements. It is designed as chopper-type constant current circuit.
设计五相十拍步进电动机驱动电路时选择了89c 2051作为环形分配器，而功率器件选用电压型的VMOS管。
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