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公开(公告)号:US20160294311A1
公开(公告)日:2016-10-06
申请号:US15177752
申请日:2016-06-09
Applicant: Texas Instruments Incorporated
Inventor: Yisong Lu , Ruochen Zhang , Wei Zuo
Abstract: A circuit includes a processor that analyzes a pulse width modulated (PWM) signal feedback from a brushless DC motor to determine a transition between a mutual inductance zero crossing condition and a Back Electro Motive Force (BEMF) zero crossing condition of the brushless DC motor. A mutual inductance controller is executed by the processor to commutate the brushless DC motor at startup of the motor when the mutual inductance zero crossing condition is detected by the processor. A BEMF controller is executed by the processor to commutate the brushless DC motor after startup of the motor when the BEMF zero crossing condition is detected by the processor.
Abstract translation: 电路包括处理器,其分析来自无刷直流电动机的脉冲宽度调制(PWM)信号反馈以确定无刷直流电动机的互感零交叉条件和后向电动力(BEMF)过零状态之间的转变。 当处理器检测到互感零交叉条件时,由电感器执行互感控制器,以在马达启动时对无刷直流电机进行换向。 当处理器检测到BEMF过零状态时,BEMF控制器由处理器执行,以在电动机起动之后换向无刷直流电动机。
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公开(公告)号:US10044303B2
公开(公告)日:2018-08-07
申请号:US15177752
申请日:2016-06-09
Applicant: Texas Instruments Incorporated
Inventor: Yisong Lu , Ruochen Zhang , Wei Zuo
Abstract: A circuit includes a processor that analyzes a pulse width modulated (PWM) signal feedback from a brushless DC motor to determine a transition between a mutual inductance zero crossing condition and a Back Electro Motive Force (BEMF) zero crossing condition of the brushless DC motor. A mutual inductance controller is executed by the processor to commutate the brushless DC motor at startup of the motor when the mutual inductance zero crossing condition is detected by the processor. A BEMF controller is executed by the processor to commutate the brushless DC motor after startup of the motor when the BEMF zero crossing condition is detected by the processor.
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公开(公告)号:US09391553B2
公开(公告)日:2016-07-12
申请号:US14098161
申请日:2013-12-05
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Yisong Lu , Ruochen Zhang , Wei Zuo
Abstract: A circuit includes a processor that analyzes a pulse width modulated (PWM) signal feedback from a brushless DC motor to determine a transition between a mutual inductance zero crossing condition and a Back Electro Motive Force (BEMF) zero crossing condition of the brushless DC motor. A mutual inductance controller is executed by the processor to commutate the brushless DC motor at startup of the motor when the mutual inductance zero crossing condition is detected by the processor. A BEMF controller is executed by the processor to commutate the brushless DC motor after startup of the motor when the BEMF zero crossing condition is detected by the processor.
Abstract translation: 电路包括处理器,其分析来自无刷直流电动机的脉冲宽度调制(PWM)信号反馈以确定无刷直流电动机的互感零交叉条件和后向电动力(BEMF)过零状态之间的转变。 当处理器检测到互感零交叉条件时,由电感器执行互感控制器,以在马达启动时对无刷直流电机进行换向。 当处理器检测到BEMF过零状态时,BEMF控制器由处理器执行,以在电动机起动之后换向无刷直流电动机。
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公开(公告)号:US10658956B2
公开(公告)日:2020-05-19
申请号:US16022056
申请日:2018-06-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Yisong Lu , Ruochen Zhang , Wei Zuo
Abstract: A circuit includes a processor that analyzes a pulse width modulated (PWM) signal feedback from a brushless DC motor to determine a transition between a mutual inductance zero crossing condition and a Back Electro Motive Force (BEMF) zero crossing condition of the brushless DC motor. A mutual inductance controller is executed by the processor to commutate the brushless DC motor at startup of the motor when the mutual inductance zero crossing condition is detected by the processor. A BEMF controller is executed by the processor to commutate the brushless DC motor after startup of the motor when the BEMF zero crossing condition is detected by the processor.
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公开(公告)号:US20190020292A1
公开(公告)日:2019-01-17
申请号:US16022056
申请日:2018-06-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Yisong Lu , Ruochen Zhang , Wei Zuo
Abstract: A circuit includes a processor that analyzes a pulse width modulated (PWM) signal feedback from a brushless DC motor to determine a transition between a mutual inductance zero crossing condition and a Back Electro Motive Force (BEMF) zero crossing condition of the brushless DC motor. A mutual inductance controller is executed by the processor to commutate the brushless DC motor at startup of the motor when the mutual inductance zero crossing condition is detected by the processor. A BEMF controller is executed by the processor to commutate the brushless DC motor after startup of the motor when the BEMF zero crossing condition is detected by the processor.
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