公开(公告)号：US08466644B2

公开(公告)日：2013-06-18

申请号：US13071062

申请日：2011-03-24

申请人： Tatsuro Shimizu ,  Hiroyuki Ishii ,  Nobuo Komura ,  Toshiya Suzuki

发明人： Tatsuro Shimizu ,  Hiroyuki Ishii ,  Nobuo Komura ,  Toshiya Suzuki

IPC分类号： H02P6/06

CPC分类号： H02P6/16 ,  H02P6/085 ,  H02P6/12 ,  H02P6/26

摘要： First and second A/D converters perform analog/digital conversion of first and second signals of a Hall signal so as to generate third and fourth signals as digital signals. A differential conversion circuit generates a fifth signal as a single-ended signal that corresponds to the difference between the third and fourth signals. An offset correction circuit corrects offset of the fifth signal so as to generate a sixth signal. An amplitude control circuit stabilizes the amplitude of the sixth signal to a predetermined target value, and generates its absolute value, thus generating a seventh signal. A control signal generating unit generates a control signal based upon the seventh signal. A driver circuit drives a motor according to the control signal.

摘要翻译： 第一和第二A / D转换器执行霍尔信号的第一和第二信号的模拟/数字转换，以产生第三和第四信号作为数字信号。 差分转换电路产生第五信号作为对应于第三和第四信号之间的差的单端信号。 偏移校正电路校正第五信号的偏移量，以产生第六信号。 振幅控制电路将第六信号的振幅稳定在预定的目标值，并产生其绝对值，从而产生第七信号。 控制信号生成单元基于第七信号生成控制信号。 驱动电路根据控制信号驱动电机。

公开(公告)号：US20110234129A1

公开(公告)日：2011-09-29

申请号：US13071062

申请日：2011-03-24

申请人： Tatsuro SHIMIZU ,  Hiroyuki ISHII ,  Nobuo KOMURA ,  Toshiya SUZUKI

发明人： Tatsuro SHIMIZU ,  Hiroyuki ISHII ,  Nobuo KOMURA ,  Toshiya SUZUKI

IPC分类号： H02P6/16

CPC分类号： H02P6/16 ,  H02P6/085 ,  H02P6/12 ,  H02P6/26

摘要： First and second A/D converters perform analog/digital conversion of first and second signals of a Hall signal so as to generate third and fourth signals as digital signals. A differential conversion circuit generates a fifth signal as a single-ended signal that corresponds to the difference between the third and fourth signals. An offset correction circuit corrects offset of the fifth signal so as to generate a sixth signal. An amplitude control circuit stabilizes the amplitude of the sixth signal to a predetermined target value, and generates its absolute value, thus generating a seventh signal. A control signal generating unit generates a control signal based upon the seventh signal. A driver circuit drives a motor according to the control signal.

摘要翻译： 第一和第二A / D转换器执行霍尔信号的第一和第二信号的模拟/数字转换，以产生第三和第四信号作为数字信号。 差分转换电路产生第五信号作为对应于第三和第四信号之间的差的单端信号。 偏移校正电路校正第五信号的偏移量，以产生第六信号。 振幅控制电路将第六信号的振幅稳定在预定的目标值，并产生其绝对值，从而产生第七信号。 控制信号生成单元基于第七信号生成控制信号。 驱动电路根据控制信号驱动电机。

公开(公告)号：US08653774B2

公开(公告)日：2014-02-18

申请号：US13071653

申请日：2011-03-25

申请人： Tatsuro Shimizu ,  Hiroyuki Ishii ,  Nobuo Komura ,  Toshiya Suzuki

发明人： Tatsuro Shimizu ,  Hiroyuki Ishii ,  Nobuo Komura ,  Toshiya Suzuki

IPC分类号： H02K29/08 ,  H02P6/00

CPC分类号： H02P6/16 ,  H02P6/085

摘要： A motor driving circuit may include a Hall sensor configured to generate a Hall signal according to the position of a rotor of a motor to be driven; a Hall bias circuit; an analog amplifier configured to amplify the Hall signal; an A/D converter configured to convert the Hall signal into a digital signal; an amplitude control circuit configured to adjust the amplitude of the digital signal; a control signal generating unit configured to generate a control signal to be used to drive the motor; and a driver circuit configured to drive the motor according to the control signal. The components may be monolithically integrated on a single semiconductor substrate. The amplitude control circuit may include an amplitude correction circuit; and a target amplitude judgment circuit configured to adjust the gain of the analog amplifier.

摘要翻译： 马达驱动电路可以包括：霍尔传感器，其被配置为根据要驱动的马达的转子的位置产生霍尔信号; 霍尔偏置电路; 配置为放大霍尔信号的模拟放大器; A / D转换器，被配置为将霍尔信号转换为数字信号; 幅度控制电路，被配置为调整数字信号的幅度; 控制信号生成单元，被配置为生成用于驱动所述电动机的控制信号; 以及驱动电路，被配置为根据控制信号驱动电动机。 组件可以单片集成在单个半导体衬底上。 幅度控制电路可以包括振幅校正电路; 以及被配置为调整模拟放大器的增益的目标幅度判定电路。

公开(公告)号：US20120268047A1

公开(公告)日：2012-10-25

申请号：US13434062

申请日：2012-03-29

申请人： TOSHIYA SUZUKI ,  NOBUO KOMURA ,  SHINSUKE SANO

发明人： TOSHIYA SUZUKI ,  NOBUO KOMURA ,  SHINSUKE SANO

IPC分类号： H02P6/16

CPC分类号： H02P6/16

摘要： The objective of the present invention is to miniaturize a driving circuit of a fan motor. The present invention provides a driving device for driving a fan motor as a three-phase brushless DC motor. An inbuilt Hall component is disposed adjacent to the fan motor and generates a pair of Hall signals corresponding to a rotor position of the fan motor. An internal power source supplies a bias signal to the inbuilt Hall component. A Hall signal processing portion cancels a shift of the pair of Hall signals and amplifies the Hall signal. A driving processing circuit drives the fan motor according to an output signal of the Hall signal processing portion. The driving device is integrated on a semiconductor substrate.

摘要翻译： 本发明的目的是使风扇电动机的驱动电路小型化。 本发明提供一种用于驱动作为三相无刷直流电动机的风扇电动机的驱动装置。 内置的霍尔部件与风扇马达相邻设置，并产生与风扇马达的转子位置对应的一对霍尔信号。 内部电源向内置的霍尔元件提供偏置信号。 霍尔信号处理部分抵消一对霍尔信号的移位并放大霍尔信号。 驱动处理电路根据霍尔信号处理部的输出信号来驱动风扇马达。 驱动装置集成在半导体基板上。

公开(公告)号：US20110279072A1

公开(公告)日：2011-11-17

申请号：US13071653

申请日：2011-03-25

申请人： Tatsuro SHIMIZU ,  Hiroyuki ISHII ,  Nobuo KOMURA ,  Toshiya SUZUKI

发明人： Tatsuro SHIMIZU ,  Hiroyuki ISHII ,  Nobuo KOMURA ,  Toshiya SUZUKI

IPC分类号： H02P6/16

CPC分类号： H02P6/16 ,  H02P6/085

摘要： First and second A/D converters perform analog/digital conversion of first and second signals of a Hall signal so as to generate third and fourth signals as digital signals. A differential conversion circuit generates a fifth signal as a single-ended signal that corresponds to the difference between the third and fourth signals. An offset correction circuit corrects offset of the fifth signal so as to generate a sixth signal. An amplitude control circuit stabilizes the amplitude of the sixth signal to a predetermined target value, and generates its absolute value, thus generating a seventh signal. A control signal generating unit generates a control signal upon the seventh signal. A driver circuit drives a motor according to the control signal.

摘要翻译： 第一和第二A / D转换器执行霍尔信号的第一和第二信号的模拟/数字转换，以产生第三和第四信号作为数字信号。 差分转换电路产生第五信号作为对应于第三和第四信号之间的差的单端信号。 偏移校正电路校正第五信号的偏移量，以产生第六信号。 振幅控制电路将第六信号的振幅稳定在预定的目标值，并产生其绝对值，从而产生第七信号。 控制信号生成单元根据第七信号生成控制信号。 驱动电路根据控制信号驱动电机。