| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a circuit capable of detecting disconnections of a rotation sensor, before making a motor rotate. <P>SOLUTION: A disconnection detecting circuit for an encoder is provided with a photocoupler 16 for converting the output waveform of the encoder into predetermined voltage, and a filter circuit 22 for carrying out conversion into DC voltage, according to the converted waveform. <P>COPYRIGHT: (C)2009,JPO&INPIT |
