| 摘要 |
PURPOSE: A hall signal generator of BLDC(Brushless direct current) motor using single hall sensor is provided to replace three hall elements with single hall element, thereby decreasing the size of PCB and costs. CONSTITUTION: A hall signal generator of BLDC motor using single hall sensor comprises first to third hall signal generators(100,200,300). The first hall signal generator(100) detects/outputs first hall signals(H1) from magnetic field generated in respective internal magnets(M1) using one hall sensor and detects/outputs frequency signals(FG) from magnetic field generated in external magnets using magnetic resistance elements. The structures of the second and third hall signal generator(200,300) are same.
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