发明名称 |
DRIVER CIRCUIT AND METHOD |
摘要 |
An amount of a motor drive current is controlled to an appropriate value. Two coils are provided, and a rotor is rotated by the coils by setting different phases for the supplied currents to the two coils. During a phase where one of the coils is in a high-impedance state, an induced voltage generated in the coil is detected. According to the state of the induced voltage, an output control circuit controls the amounts of the motor drive currents supplied to the two coils.
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申请公布号 |
US2013307454(A1) |
申请公布日期 |
2013.11.21 |
申请号 |
US201313952479 |
申请日期 |
2013.07.26 |
申请人 |
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC |
发明人 |
HIOKI KOSAKU;TAKAI KAZUMASA;NAGANUMA TAKESHI;NIWA YOSHIHIRO |
分类号 |
H02P6/18 |
主分类号 |
H02P6/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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