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1. 发明授权

US08994315B2 Motor controller 有权
标题翻译：电机控制器
公开(公告)号：US08994315B2
公开(公告)日：2015-03-31
申请号：US13786823
申请日：2013-03-06
申请人： Wei-Hsu Chang , Jo-Yu Wang , Jen-Hung Chi
发明人： Wei-Hsu Chang , Jo-Yu Wang , Jen-Hung Chi
IPC分类号： H02P25/06 , H02P7/29
CPC分类号： H02P7/29
摘要： The present invention provides a motor controller for controlling a DC motor according to a reference signal. The motor controller includes a compensator, a pulse width modulation unit, and a motor driving unit. The compensator generates a control signal according to the reference signal and a sensing signal from the DC motor. The pulse width modulation unit generates a motor control signal by comparing the control signal and a ramp signal having a varying frequency. The motor driving unit receives the motor control signal and drives the DC motor according to the motor control signal.
摘要翻译：本发明提供一种用于根据参考信号控制DC电动机的电动机控制器。马达控制器包括补偿器，脉宽调制单元和马达驱动单元。补偿器根据参考信号和来自直流电动机的感测信号产生控制信号。脉冲宽度调制单元通过比较控制信号和具有变化频率的斜坡信号来产生电动机控制信号。马达驱动单元接收马达控制信号，并根据马达控制信号驱动直流马达。

2. 发明申请

US20150069940A1 MULTI-PHASE MOTOR CONTROL METHOD AND DEVICE USING THE SAME 有权
标题翻译：多相电动机控制方法和使用该装置的装置
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。

3. 发明授权

US08912744B2 Method and apparatus for dynamically adjusting a dead time of brushless direct current motor during a phase change 有权
标题翻译：在相变期间动态地调节无刷直流电机的死区时间的方法和装置
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。

4. 发明授权

US08860483B2 Pulse width modulation signal generation circuit and pulse width modulation signal generation method 有权
标题翻译：脉宽调制信号发生电路和脉宽调制信号产生方法
公开(公告)号：US08860483B2
公开(公告)日：2014-10-14
申请号：US14093002
申请日：2013-11-28
申请人： Jo-Yu Wang , Wei-Hsu Chang
发明人： Jo-Yu Wang , Wei-Hsu Chang
IPC分类号： H03K3/017 , H03K7/08
CPC分类号： H03K7/08
摘要： The present invention discloses a PWM signal generation circuit and a PWM signal generation method. The PWM signal generation circuit includes: a reference signal generation circuit for generating a reference signal according to an input voltage; a variable ramp signal generation circuit for generating a variable ramp signal; and a comparator circuit for comparing the reference signal with the variable ramp signal to generate a PWM signal. A rising slope and/or a falling slope of the variable ramp signal is variable.
摘要翻译：本发明公开了一种PWM信号生成电路和PWM信号生成方法。 PWM信号产生电路包括：参考信号产生电路，用于根据输入电压产生参考信号; 用于产生可变斜坡信号的可变斜坡信号产生电路; 以及用于将参考信号与可变斜坡信号进行比较以产生PWM信号的比较器电路。可变斜坡信号的上升斜率和/或下降斜率是可变的。

5. 发明授权

US08421429B2 Control circuit and method for a power converter controlling adaptive voltage position 失效
标题翻译：用于控制自适应电压位置的功率转换器的控制电路和方法
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。

6. 发明授权

US08188722B2 DC gain improvement of a digitally controlled DC-DC converter by LSB tuning 失效
标题翻译：数字控制的DC-DC转换器通过LSB调谐直流增益改善
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。

7. 发明授权

US08030911B2 Hybrid control circuit and method 有权
标题翻译：混合控制电路及方法
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。

8. 发明申请

US20100238060A1 HYBRID CONTROL CIRCUIT AND METHOD 有权
标题翻译：混合控制电路和方法
公开(公告)号：US20100238060A1
公开(公告)日：2010-09-23
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： H03M1/12
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。

9. 发明授权

US07656136B2 Digital voltage converter with constant off-time and variable on-time of controller 失效
标题翻译：数字电压转换器具有恒定的关断时间和可变导通时间的控制器
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。

10. 发明申请

US20080054869A1 Switching mode power supply and method for determining a compensation factor thereof 有权
标题翻译：开关电源及确定其补偿系数的方法
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。

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