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1. 发明授权

US08558521B2 Operating phase number dependent compensation of a multi-phase buck converter 失效
标题翻译：多相降压转换器的工作相位数相关补偿
公开(公告)号：US08558521B2
公开(公告)日：2013-10-15
申请号：US12898910
申请日：2010-10-06
申请人： Wei-Hsu Chang , Yu-Cheng Lin , Yu-Kuang Wu , Dan Chen
发明人： Wei-Hsu Chang , Yu-Cheng Lin , Yu-Kuang Wu , Dan Chen
IPC分类号： G05F1/40
CPC分类号： H02M3/1584 , H02M3/157 , H02M2001/0032 , Y02B70/16
摘要： A multi-phase buck converter has a digital compensator to select a set of compensation coefficients depending on the operating phase number of the multi-phase buck converter, or including different compensators for each operation phase number to improve the loop gain bandwidth, transient response and stability of the multi-phase buck converter. The multi-phase buck converter operates with more phase circuits for higher loading and operates with fewer phase circuits for lower loading. The compensation varies with the number of the operated phase circuits so to be adaptive to the operation condition with an optimized control-to-output voltage transfer function.
摘要翻译：多相降压转换器具有数字补偿器，用于根据多相降压转换器的工作相位数来选择一组补偿系数，或者包括用于每个运行相位数的不同补偿器，以改善环路增益带宽，瞬态响应和多相降压转换器的稳定性。多相降压转换器具有更多的相位电路，可实现更高的负载，并以更少的相位电路运行，以实现更低的负载。补偿根据操作的相位电路的数量而变化，以便利用优化的控制输出电压传递函数适应于操作条件。

2. 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。

3. 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。

4. 发明申请

US20100090672A1 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：US20100090672A1
公开(公告)日：2010-04-15
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： G05F1/00
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。

5. 发明授权

US08525497B2 Using offset cancellation circuit to mitigate beat-frequency oscillation of phase currents in a multiphase interleaved voltage regulator 有权
标题翻译：使用偏移消除电路来减轻多相交错电压调节器中相电流的拍频振荡
公开(公告)号：US08525497B2
公开(公告)日：2013-09-03
申请号：US13018628
申请日：2011-02-01
申请人： Chen-Hua Chiu , Ching-Jan Chen , Dan Chen , Wei-Hsu Chang
发明人： Chen-Hua Chiu , Ching-Jan Chen , Dan Chen , Wei-Hsu Chang
IPC分类号： G05F1/59
CPC分类号： G05F1/618
摘要： For a multiphase interleaved voltage regulator, an offset cancellation circuit is applied for each phase separately. The current loop gain of each phase is thus increased to mitigate the beat-frequency oscillation in phase currents when the beat frequency is below the bandwidth of the low-pass filter in the offset cancellation circuit, without introducing additional instability issue that is the drawback of increasing current-sensing gain.
摘要翻译：对于多相交错电压调节器，分别对每个相应用偏移消除电路。因此，当拍频在偏移消除电路中低于低通滤波器的带宽时，每相的电流环路增益被增加以减轻相电流中的节拍频率振荡，而不引入额外的不稳定性问题，这是缺点增加电流检测增益。

6. 发明授权

US07876075B1 Control circuit and method for a power converter 有权
标题翻译：电源转换器的控制电路和方法
公开(公告)号：US07876075B1
公开(公告)日：2011-01-25
申请号：US12768273
申请日：2010-04-27
申请人： Bo Yi Chiu , Dan Chen , Wei-Hsu Chang
发明人： Bo Yi Chiu , Dan Chen , Wei-Hsu Chang
IPC分类号： G05F1/613
CPC分类号： H02M3/156
摘要： A control circuit and control method for a power converter detects change of the output voltage of the converter, and performs the time-optimal control function when the change exceeds the default value. According to the voltage slew rate detected at the time of the change exceeding the default value, a time interval T1 from the change exceeding the default value being detected to the current of the inductor rising to be the same as the output current of the converter is estimated, and the time intervals T2 and T3 are figured out based on the time interval T1. The parasitic resistance of the output capacitor of the converter is taken into account during estimating process such that even if the output capacitor has larger parasitic resistance, the output voltage can be back to the steady state value accurately to avoid the time-optimal control being triggered repeatedly.
摘要翻译：功率转换器的控制电路和控制方法检测变换器的输出电压的变化，并且当变化超过默认值时，执行时间最优控制功能。根据在变化时检测到的电压转换速率超过默认值，从检测到的默认值的变化到电感上升到与转换器的输出电流相同的电流的时间间隔T1是并且基于时间间隔T1计算时间间隔T2和T3。在估计过程中考虑到转换器输出电容器的寄生电阻，即使输出电容器具有较大的寄生电阻，输出电压也可以精确回到稳态值，以避免触发时间最优控制反复。

7. 发明授权

US07652460B2 Digital compensator design method and digital compensator for a switching mode power supply 失效
标题翻译：数字补偿器设计方法和数字补偿器，用于开关电源
公开(公告)号：US07652460B2
公开(公告)日：2010-01-26
申请号：US12005295
申请日：2007-12-27
申请人： Wei-Hsu Chang , Dan Chen
发明人： Wei-Hsu Chang , Dan Chen
IPC分类号： G05F1/40 , G05F1/613
CPC分类号： H02M3/157
摘要： A method for designing a digital compensator for a switching mode power supply is provided such that the digital compensator has complex conjugated zero pair or a right hand pole to eliminate the complex conjugated pole pair or right hand zero in the transfer function of the control-to-output voltage of the switching mode power supply.
摘要翻译：提供一种用于设计用于开关模式电源的数字补偿器的方法，使得数字补偿器具有复数共轭零对或右手极，以消除控制到的传递函数中的复共轭极对或右手零点 - 开关电源的输出电压。

8. 发明申请

US20080157737A1 DIGITAL COMPENSATOR DESIGN METHOD AND DIGITAL COMPENSATOR FOR A SWITCHING MODE POWER SUPPLY 失效
标题翻译：用于开关电源的数字补偿器设计方法和数字补偿器
公开(公告)号：US20080157737A1
公开(公告)日：2008-07-03
申请号：US12005295
申请日：2007-12-27
申请人： Wei-Hsu Chang , Dan Chen
发明人： Wei-Hsu Chang , Dan Chen
IPC分类号： G05F1/08
CPC分类号： H02M3/157
摘要： A method for designing a digital compensator for a switching mode power supply is provided such that the digital compensator has complex conjugated zero pair or a right hand pole to eliminate the complex conjugated pole pair or right hand zero in the transfer function of the control-to-output voltage of the switching mode power supply.
摘要翻译：提供一种用于设计用于开关模式电源的数字补偿器的方法，使得数字补偿器具有复数共轭零对或右手极，以消除控制到的传递函数中的复共轭极对或右手零点 - 开关电源的输出电压。

9. 发明申请

US20110084676A1 CONTROL CIRCUIT AND METHOD FOR A POWER CONVERTER CONTROLLING ADAPTIVE VOLTAGE POSITION 失效
标题翻译：电源转换器控制自适应电压位置的控制电路和方法
公开(公告)号：US20110084676A1
公开(公告)日：2011-04-14
申请号：US12701465
申请日：2010-02-05
申请人： Yu Cheng Lin , Dan Chen , We-Hsu Chang
发明人： Yu Cheng Lin , Dan Chen , We-Hsu Chang
IPC分类号： G05F1/10
CPC分类号： H02M3/156 , H02M2001/0022
摘要： A control circuit and method for a power converter controlling adaptive voltage position comprises an adder acquiring an output voltage difference between the output voltage and the reference output voltage, a digital compensator with an Z-domain transfer function to reference to the output voltage difference to generate a pulse width control signal, regulating the least significant bits of a denominator coefficient in the Z-domain transfer function such that a load line function of the power converter is performed via control of the pulse width control signal, and a pulse modulation circuit being controlled by the pulse width control signal to generate the pulse width modulation signal to control ON/OFF of power switch of the power converter. Thus, functions of controlling the negative or positive load lines and function of variable load line required by the operation of multiphase converter can be performed easily without complicated operations.
摘要翻译：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包括：获取输出电压和参考输出电压之间的输出电压差的加法器，具有参考输出电压差的Z域传递函数的数字补偿器以产生脉冲宽度控制信号，调节Z域传递函数中的分母系数的最低有效位，使得经由脉冲宽度控制信号的控制来执行功率转换器的负载线功能，并且脉冲调制电路被控制通过脉宽控制信号产生脉宽调制信号，控制电源转换器电源开关的ON / OFF。因此，无需复杂的操作就可以容易地执行负极或负载线的控制功能以及多相转换器的运行所需的可变负载线的功能。

10. 发明授权

US08107373B2 Method, device and system for realizing QoS guarantee in a MPLS network 有权
标题翻译：在MPLS网络中实现QoS保证的方法，设备和系统
公开(公告)号：US08107373B2
公开(公告)日：2012-01-31
申请号：US10580401
申请日：2003-11-24
申请人： Dan Chen , Zhongsheng Luo
发明人： Dan Chen , Zhongsheng Luo
IPC分类号： G01R31/08
CPC分类号： H04L45/00 , H04L45/04 , H04L45/302 , H04L45/50 , H04L47/15 , H04L47/24 , H04L47/70 , H04L47/785 , H04L47/822 , H04L47/825
摘要： A method for realizing QoS guarantee in a MPLS network, a method for establishing a QoS data path, a method for terminating QoS data transmission, an edge router for a MPLS network and a MPLS network for realizing QoS guarantee are provided. The method for realizing QoS guarantee in a MPLS network includes: creating individual QoS resource list in each edge router to record resource state corresponding to a path; the each edge router assigning resources to a user terminal which makes a request based on the QoS resource list and updating the QoS resource list.
摘要翻译：提供了一种在MPLS网络中实现QoS保证的方法，建立QoS数据路径的方法，终止QoS数据传输的方法，MPLS网络的边缘路由器和实现QoS保证的MPLS网络。在MPLS网络中实现QoS保证的方法包括：在每个边缘路由器中创建单独的QoS资源列表，以记录对应于路径的资源状态; 每个边缘路由器向基于QoS资源列表进行请求的用户终端分配资源并更新QoS资源列表。

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