专利名称：Motor drive device, magnetic disk storage
device, and electronic apparatus
发明人：Yoshito Otaguro申请号：US13623245申请日：20120920公开号：US08970139B2公开日：20150303
专利附图：
摘要：A motor drive device has: a power supply line to which a power supply voltage isapplied; a ground line to which a ground voltage is applied; and a first motor driver that,when the power supply voltage is normal, rotates an N-phase first motor (where N is an
integer of 2 or more) by using the supply voltage and, when the power supply voltage isabnormal, generates a rectified voltage from phase voltages of different phases
appearing while the first motor is idling to regenerate the rectified voltage to the powersupply line. The first motor driver, when generating the rectified voltage, synchronouslyrectifies the phase voltages of the different phases according to the results of theircomparison with the rectified voltage and the ground voltage. The first motor driver isstructured so as to rectify the phase voltages of the different phases synchronously inaccordance with results of comparison between the phase voltages of the differencephases, the rectified voltage, and the ground voltage.
申请人：Rohm Co., Ltd.
地址：Kyoto-shi, Kyoto JP
国籍：JP
代理机构：Cantor Colburn LLP
更多信息请下载全文后查看
因篇幅问题不能全部显示，请点此查看更多更全内容