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1. 发明授权

US06404175B1 Multi-phase and multi-module power supplies with balanced current between phases and modules 失效
标题翻译：多相和多模块电源，具有相间和模块之间的平衡电流
公开(公告)号：US06404175B1
公开(公告)日：2002-06-11
申请号：US09757801
申请日：2001-01-09
申请人： Eric X. Yang , Jason Guo
发明人： Eric X. Yang , Jason Guo
IPC分类号： G05F1652
CPC分类号： H02M3/1584 , H02M2003/1586
摘要： A multi-phase power supply utilizes a current sensor including a sensor inductor winding connected in parallel with a filter inductor winding at the output of each phase for sensing the phase currents and balancing the current by adjusting the duty cycle of each phase through feedback control. In addition, in a multi-module power supply configuration, current between power supply modules is balanced through use of the same current sensor and current sharing technique. Each phase of the power supply includes at least one input power source and a current sensor. The sensor inductor winding and the filter inductor winding have the same number of turns and are wound about a magnetic core also present at each phase. A differential amplifier at each phase senses and amplifies any voltage difference between the outputs of the sensor inductor winding and the corresponding filter inductor winding. A current-sharing bus is formed between each of the phases, carrying the summed and averaged outputs from all the differential amplifiers. A feedback correction circuit at each phase utilizes the voltage on the current-sharing bus as a reference to control a pulse width modulator in adjusting the duty cycle of the corresponding phase, thereby balancing the load current among the phases. In a multi-module, multi-phase power supply, the current-sharing bus and a voltage-sharing bus are extended between each module and the phases of each module to achieve the same current balancing between all phases and modules.
摘要翻译：多相电源使用电流传感器，其包括与每相输出端的滤波电感器绕组并联连接的传感器电感线圈，用于通过反馈控制调节每相的占空比来感测相电流并平衡电流。另外，在多模块电源配置中，通过使用相同的电流传感器和电流共享技术来平衡电源模块之间的电流。电源的每个相包括至少一个输入电源和电流传感器。传感器电感绕组和滤波电感绕组具有相同的匝数，并缠绕在每个相位上也存在的磁芯。每个相位的差分放大器可以感测和放大传感器电感线圈和相应的滤波电感绕组的输出之间的任何电压差。在每个相之间形成一个电流共享总线，其中载有来自所有差分放大器的相加和平均的输出。每相上的反馈校正电路利用电流共享总线上的电压作为参考来控制脉冲宽度调制器来调节相应相位的占空比，从而平衡相间的负载电流。在多模块多相电源中，每个模块和各个模块的相位之间扩展了分流总线和电压共享总线，以实现所有相和模块之间的相同电流平衡。

2. 发明授权

US06215290B1 Multi-phase and multi-module power supplies with balanced current between phases and modules 有权
标题翻译：多相和多模块电源，具有相间和模块之间的平衡电流
公开(公告)号：US06215290B1
公开(公告)日：2001-04-10
申请号：US09440222
申请日：1999-11-15
申请人： Eric X. Yang , Jason Guo
发明人： Eric X. Yang , Jason Guo
IPC分类号： G05F140
CPC分类号： H02M3/1584 , H02M2003/1586
摘要： A multi-phase power supply utilizes a current sensor including a sensor inductor winding connected in parallel with a filter inductor winding at the output of each phase for sensing the phase currents and balancing the current by adjusting the duty cycle of each phase through feedback control. In addition, in a multi-module power supply configuration, current between power supply modules is balanced through use of the same current sensor and current sharing technique. Each phase of the power supply includes at least one input power source and a current sensor. The sensor inductor winding and the filter inductor winding have the same number of turns and are wound about a magnetic core also present at each phase. A differential amplifier at each phase senses and amplifies any voltage difference between the outputs of the sensor inductor winding and the corresponding filter inductor winding. A current-sharing bus is formed between each of the phases, carrying the summed and averaged outputs from all the differential amplifiers. A feedback correction circuit at each phase utilizes the voltage on the current-sharing bus as a reference to control a pulse width modulator in adjusting the duty cycle of the corresponding phase, thereby balancing the load current among the phases. In a multi-module, multi-phase power supply, the current-sharing bus and a voltage-sharing bus are extended between each module and the phases of each module to achieve the same current balancing between all phases and modules.
摘要翻译：多相电源使用电流传感器，其包括与每相输出端的滤波电感器绕组并联连接的传感器电感线圈，用于通过反馈控制调节每相的占空比来感测相电流并平衡电流。另外，在多模块电源配置中，通过使用相同的电流传感器和电流共享技术来平衡电源模块之间的电流。电源的每个相包括至少一个输入电源和电流传感器。传感器电感绕组和滤波电感绕组具有相同的匝数，并缠绕在每个相位上也存在的磁芯。每个相位的差分放大器可以感测和放大传感器电感线圈和相应的滤波电感绕组的输出之间的任何电压差。在每个相之间形成一个电流共享总线，其中载有来自所有差分放大器的相加和平均的输出。每相上的反馈校正电路利用电流共享总线上的电压作为参考来控制脉冲宽度调制器来调节相应相位的占空比，从而平衡相间的负载电流。在多模块多相电源中，每个模块和各个模块的相位之间扩展了分流总线和电压共享总线，以实现所有相和模块之间的相同电流平衡。

3. 发明授权

US06462521B1 High-speed charge-mode controller for a multi-phase switched-mode power converter 失效
标题翻译：用于多相开关模式电源转换器的高速充电模式控制器
公开(公告)号：US06462521B1
公开(公告)日：2002-10-08
申请号：US09908007
申请日：2001-07-17
申请人： Eric X. Yang , Trevor M. Newlin
发明人： Eric X. Yang , Trevor M. Newlin
IPC分类号： G05F140
CPC分类号： H02M3/1584
摘要： A multiphase controller for a PWM power converter employs a single current sense device to measure input current, I, and an integrator at each phase to accurately measure power delivered during a pulse. The integrator monitors current delivered through a circuit which delivers a current signal scaled to I/N where N is the number of active phases. Thus where there are three overlapping phases, one-third of I is delivered to the integrator for each phase that is on or active. The integrator provides a Charge Ramp signal to an input of a Pulse Width Modulation (PWM) comparator associated with each phase. The other input of the PWM comparator is tied to an error control signal common to all of the phases. When the Charge Ramp signal and the error control signal match, the corresponding phase is turned off for the duration of the cycle.
摘要翻译：用于PWM功率转换器的多相控制器采用单电流检测器件来测量每相的输入电流I和积分器以精确测量在脉冲期间传递的功率。积分器监视通过电路传送的电流，该电路将当前信号放大到I / N，其中N是有效相位的数量。因此，在存在三个重叠阶段的情况下，三分之一的I被递送给积分器，用于处于或活动的每个阶段。积分器向与每个相位相关联的脉宽调制（PWM）比较器的输入端提供充电斜坡信号。 PWM比较器的另一个输入端连接到所有相位共同的误差控制信号。当充电斜坡信号和误差控制信号匹配时，相应的相位在该周期的持续时间内被关闭。

4. 发明授权

US06130526A Voltage regulator with wide control bandwidth 有权
标题翻译：电压调节器具有宽的控制带宽
公开(公告)号：US06130526A
公开(公告)日：2000-10-10
申请号：US285505
申请日：1999-04-02
申请人： Eric X. Yang , Lajos Burgyan , Prabhjyot S. Bhurji
发明人： Eric X. Yang , Lajos Burgyan , Prabhjyot S. Bhurji
IPC分类号： G05F1/575 , G05F1/56
CPC分类号： G05F1/575
摘要： A fast buffer and switching regulator are combined in parallel in a master-slave loop topology to form a voltage regulator. The buffer circuit has a voltage sensing amplifier that senses the difference between the voltage at the output of the voltage regulator and a reference voltage. This voltage difference is amplified, and then input to a buffer that sources current to or sinks current from the output of the voltage regulator. The output of the buffer circuit is coupled to the switching converter which senses the changing buffer circuit output current. The switching converter changes its duty cycle to oppose the current from the buffer circuit. This is a master-slave loop topology wherein the buffer circuit is the master loop that quickly provides high levels of current to compensate for a voltage transient at the output of the voltage regulator, and the switching converter is the slave loop which eventually takes over from the master loop to meet the current output requirements of the voltage regulator.
摘要翻译：快速缓冲器和开关稳压器并联在主从环路拓扑中以形成电压调节器。缓冲电路具有电压感测放大器，其感测电压调节器的输出端的电压与参考电压之间的差值。该电压差被放大，然后输入到缓冲器，该缓冲器从电压调节器的输出端输入电流或吸收电流。缓冲电路的输出耦合到开关转换器，其感测变化的缓冲电路输出电流。开关转换器改变其占空比以对抗来自缓冲电路的电流。这是一个主从回路拓扑，其中缓冲电路是主回路，其快速地提供高电平电流来补偿电压调节器的输出处的电压瞬变，并且开关转换器是从循环最终从主回路满足电压调节器的当前输出要求。

5. 发明授权

US5880513A Asymmetric snubber resistor 失效
标题翻译：不对称缓冲电阻
公开(公告)号：US5880513A
公开(公告)日：1999-03-09
申请号：US634371
申请日：1996-04-18
申请人： Victor A.K. Temple , Stephen D. Arthur , Sabih Al-Marayati , Eric X. Yang
发明人： Victor A.K. Temple , Stephen D. Arthur , Sabih Al-Marayati , Eric X. Yang
IPC分类号： H01C13/00 , H01L21/822 , H01L27/04 , H01L29/8605 , H01L29/861 , H03K17/0814 , H01L23/58 , H01L29/00 , H01L29/93
CPC分类号： H03K17/08146 , H01L29/8605 , H01L29/861
摘要： An asymmetric snubber resistor in accordance with the present invention includes a cathode, an N+ region, an N- region, a plurality of P+ regions, and an anode. The N+ region is disposed over the cathode, the N- region is disposed over the N+ region, the plurality of P+ regions are disposed over the N- region, and the anode is disposed over the plurality of P+ regions and exposed portions of the N- region. The asymmetric snubber may also include N regions between the P+ regions. The asymmetric snubber resistor replaces the snubber diode and the snubber resistor in a typical snubber circuit.
摘要翻译：根据本发明的非对称缓冲电阻器包括阴极，N +区域，N区域，多个P +区域和阳极。 N +区域设置在阴极上，N区域设置在N +区域上，多个P +区域设置在N区域上方，并且阳极设置在多个P +区域上并且N的暴露部分 - 区域。不对称缓冲器还可以包括P +区域之间的N个区域。不对称缓冲电阻在典型的缓冲电路中代替缓冲二极管和缓冲电阻。

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