The Hall speed transducer, the generation of the mileage pulse, the driving of step motor and the application of integrated circuit of BL2115 in speedometer are introduced in detail.
详细介绍霍尔速度传感器，里程计数脉冲的产生，步进电机的驱动和BL 2115集成电路在电子式车速里程表中的应用。
The motor speed driving system USES DSP as controller and USES high-frequency delay-loop current comparator composed of integrated circuit.
设计了以DSP为控制器、集成电路构成高速滞环电流比较器的电机调速系统。
The bipolar two-phase hybrid stepping motor integrated with chip L6217A was mainly used in this drive circuit to realize the ability of current subdivision.
该驱动电路主要应用双极性两相混合式步进电机驱动集成芯片L 6217a，来实现电流细分功能。
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