| 摘要 |
<p>A phase detection apparatus (2) for an alternator is disclosed according to an embodiment of the present invention. The phase detection apparatus (2) comprises a waveform detector (21), a threshold voltage generator (22), and a comparator (23). The waveform detector (21) is used for detecting a wave peak of a phase signal, and generating a waveform detection signal accordingly. The threshold voltage generator (22) is used for generating a reference signal according to the waveform detection signal. The comparator (23) is used for comparing the phase signal with the reference signal, and generating a comparison signal accordingly. Therefore, the phase detection apparatus (2) for the alternator may reduce the leakage current of a battery in a vehicle.</p> |
