公开(公告)号：US20150069940A1

公开(公告)日：2015-03-12

申请号：US14461918

申请日：2014-08-18

申请人： Kuo-Chung Lee ,  Wei-Hsu Chang ,  An-Tung Chen ,  Chun-Wen Wang

发明人： Kuo-Chung Lee ,  Wei-Hsu Chang ,  An-Tung Chen ,  Chun-Wen Wang

IPC分类号： H02P6/00

CPC分类号： H02P6/182 ,  H02P6/15 ,  H02P6/18

摘要： A multi-phase motor control method controls a multi-phase motor which includes multiple nodes respectively receiving a corresponding number of driving voltage signals to control a rotation of a rotor. The motor control method includes: sensing a signal phase of a current signal corresponding to at least one node, for example by sensing a zero-crossing point of the current signal; determining a reference phase for the current signal; calculating a phase difference between the signal phase and the reference phase; and controlling a phase switching frequency of the stator according to the phase difference, such that the signal phase is close to or in phase with the reference phase, to thereby obtain an optimum rotation speed of the rotor corresponding to a given driving voltage. The present invention also provides a multi-phase motor control device using the motor control method.

摘要翻译： 多相电动机控制方法控制多相电动机，其包括分别接收相应数量的驱动电压信号以控制转子的旋转的多个节点。 电动机控制方法包括：例如通过感测当前信号的过零点来感测与至少一个节点对应的电流信号的信号相位; 确定当前信号的参考相位; 计算信号相位和参考相位之间的相位差; 以及根据所述相位差来控制所述定子的相位切换频率，使得所述信号相位与所述基准相位接近或相位，从而获得对应于给定驱动电压的转子的最佳转速。 本发明还提供一种使用电动机控制方法的多相电动机控制装置。

公开(公告)号：US08912744B2

公开(公告)日：2014-12-16

申请号：US13570973

申请日：2012-08-09

申请人： Haó-Yu Chang ,  Pei-Cheng Huang ,  Wei-Hsu Chang ,  Kuo-Chung Lee

发明人： Haó-Yu Chang ,  Pei-Cheng Huang ,  Wei-Hsu Chang ,  Kuo-Chung Lee

IPC分类号： H02P6/00 ,  H02P6/08 ,  H02P6/14 ,  H02P7/00

CPC分类号： H02P6/085 ,  H02P6/15 ,  H02P31/00

摘要： A method and apparatus for dynamically adjusting a dead time of a BLDC motor during a phase change detect the winding current of the BLDC motor during the dead time, and terminate the dead time when the winding current is detected to be substantially or close to zero. Thus, the method and apparatus can optimize the dead time and switch the BLDC motor between two phases at a zero-current point, without reducing the maximum rotation speed of the BLDC motor.

摘要翻译： 在相变期间动态地调整BLDC电动机的死区时间的方法和装置在死区时间内检测BLDC电动机的绕组电流，并且当检测到绕组电流基本上或接近零时终止死区时间。 因此，该方法和装置可以在零电流点上优化死区时间并在两相之间切换BLDC电动机，而不会降低BLDC电动机的最大转速。

公开(公告)号：US08421429B2

公开(公告)日：2013-04-16

申请号：US12701465

申请日：2010-02-05

申请人： Yu Cheng Lin ,  Dan Chen ,  Wei-Hsu Chang

发明人： Yu Cheng Lin ,  Dan Chen ,  Wei-Hsu Chang

IPC分类号： G05F1/00

CPC分类号： H02M3/156 ,  H02M2001/0022

摘要： A control circuit and method for controlling a power converter comprises an adder, a digital compensator, and a pulse width modulation circuit. The adder acquires an output voltage difference between the output voltage and the reference output voltage. The digital compensator, which has a Z-domain transfer function, references the output voltage difference to generate a pulse width control signal with the least significant bits of the denominator coefficient in the Z-domain transfer function being regulated to achieve the load line function of the power converter. Further, the pulse modulation circuit is controlled by the pulse width control signal to generate the pulse width modulation signal to control ON/OFF of the power converter.

摘要翻译： 用于控制功率转换器的控制电路和方法包括加法器，数字补偿器和脉冲宽度调制电路。 加法器获取输出电压和基准输出电压之间的输出电压差。 具有Z域传递函数的数字补偿器参考输出电压差以产生脉宽控制信号，Z域传递函数中分母系数的最低有效位被调节以实现负载线功能 电源转换器。 此外，脉冲调制电路由脉冲宽度控制信号控制，以产生脉宽调制信号，以控制功率转换器的导通/截止。

公开(公告)号：US08188722B2

公开(公告)日：2012-05-29

申请号：US12588106

申请日：2009-10-05

申请人： Yu-Cheng Lin ,  Yen-Tang Wang ,  Dan Chen ,  Wei-Hsu Chang

发明人： Yu-Cheng Lin ,  Yen-Tang Wang ,  Dan Chen ,  Wei-Hsu Chang

IPC分类号： G05B11/14

CPC分类号： H02M3/157

摘要： An easy LSB tuning method is proposed for a digitally controlled DC-DC converter to increase the DC gain of the digitally controlled DC-DC converter under conditions of no-limit-cycle and a finite bit number to reduce steady-state error of the digitally controlled DC-DC converter. The LSB of one or more of the coefficients in the denominator of the discrete-time domain transfer function of the digital compensator in the digitally controlled DC-DC converter is so tuned that the sum of all coefficients in the denominator of the discrete-time domain transfer function becomes zero. Therefore, the influence of round-off effect on the coefficients of the digital compensator is mitigated.

摘要翻译： 提出了一种容易的LSB调谐方法，用于数字控制的DC-DC转换器，以在无极限循环和有限位数的条件下增加数字控制的DC-DC转换器的直流增益，以减少数字化的稳态误差 受控DC-DC转换器。 数字控制DC-DC转换器中的数字补偿器的离散时域传递函数的分母中的一个或多个系数的LSB被调整为使得离散时间域的分母中的所有系数的和 传递函数变为零。 因此，舍入效应对数字补偿器系数的影响得到了缓解。

公开(公告)号：US08030911B2

公开(公告)日：2011-10-04

申请号：US12721853

申请日：2010-03-11

申请人： Hung-Shou Nien ,  Kuang-Yao Cheng ,  Yi-Chiang Fu ,  Wei-Hsu Chang

发明人： Hung-Shou Nien ,  Kuang-Yao Cheng ,  Yi-Chiang Fu ,  Wei-Hsu Chang

IPC分类号： G05F1/00

CPC分类号： H03M1/203 ,  H02M3/1584 ,  H02M2001/0012 ,  H03M1/506

摘要： A hybrid control circuit and method combine analog circuit and digital circuit to generate digital PWM signals for a multiphase DC-DC converter to generate an output voltage. For current balance control, analog current error signals are generated by the analog circuit from analog phase current signals of the multiphase DC-DC converter and then converted into digital current error signals for calculating the duties of each phase of the multiphase DC-DC converter. Therefore, fewer bit devices can be used to achieve precise current balance control and the size and cost of the circuit can be reduced.

摘要翻译： 混合控制电路和方法组合模拟电路和数字电路以产生用于多相DC-DC转换器的数字PWM信号以产生输出电压。 对于电流平衡控制，模拟电流误差信号由多相DC-DC转换器的模拟相电流信号由模拟电路产生，然后转换为数字电流误差信号，用于计算多相DC-DC转换器各相的占空比。 因此，可以使用较少的位器件来实现精确的电流平衡控制，并且可以减小电路的尺寸和成本。

公开(公告)号：US07656136B2

公开(公告)日：2010-02-02

申请号：US11826213

申请日：2007-07-13

申请人： Wei-Hsu Chang

发明人： Wei-Hsu Chang

IPC分类号： G05F1/00 ,  G05F1/613

CPC分类号： H02M3/157 ,  H02M3/1582

摘要： In a digital boost or buck-boost converter, a pulse width modulation signal has an on-time and an off-time. A constant off-time period is provided to set the off-time to be constant, and an on-time period to determine the on-time is derived by monitoring the output voltage of the converter. With the constant off-time, the output voltage and the on-time period will have a linear relation, thereby reducing the output ripple when the converter operates with a high duty-ratio.

摘要翻译： 在数字升压或降压 - 升压转换器中，脉宽调制信号具有导通时间和关断时间。 提供恒定的关闭时间以将关闭时间设置为恒定，并且通过监视转换器的输出电压导出用于确定导通时间的导通时间段。 随着恒定的关断时间，输出电压和导通时间段将具有线性关系，从而在转换器以高占空比工作时减小输出纹波。

公开(公告)号：US20080054869A1

公开(公告)日：2008-03-06

申请号：US11892994

申请日：2007-08-29

申请人： Wei-Hsu Chang

发明人： Wei-Hsu Chang

IPC分类号： G05F1/44 ,  G05F1/00

CPC分类号： H02M3/157

摘要： A switching mode power supply is configured to have two modes, a normal mode and a measure mode. To determine a compensation factor to compensate the switching mode power supply in the normal mode, the switching mode power supply is switched to the measure mode to measure a frequency response of the switching mode power supply, by which the switching mode power supply is accurately compensated and optimized.

摘要翻译： 开关模式电源被配置为具有正常模式和测量模式的两种模式。 为了在正常模式下确定补偿开关模式电源的补偿因子，将开关模式电源切换到测量模式，以测量开关模式电源的频率响应，由此开关模式电源被精确补偿 并优化。