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1. 发明申请

US20110248689A1 PHASE SHEDDING CONVERTER WITH RIPPLE MINIMIZATION 有权
标题翻译：相位切换转换器，具有纹波最小化
公开(公告)号：US20110248689A1
公开(公告)日：2011-10-13
申请号：US13165922
申请日：2011-06-22
申请人： Brent A. McDonald , George G. Richards, III
发明人： Brent A. McDonald , George G. Richards, III
IPC分类号： G05F1/00
CPC分类号： H02M3/1584 , H02M2001/0032 , Y02B70/16
摘要： In an information handling system, a multi-phase electrical converter includes an electrical input, an electrical output, a plurality of converter phases coupled with the electrical input and the electrical output, and a controller to ramp operation of one or more of the converter phases as a load demand adjusts. In an embodiment the converter may be a multi-phase buck converter having a high side switch, a low side switch, and an inductor. In an embodiment, the controller may ramp operation of the converter phases by adjusting a duty cycle of the high side switch. In an embodiment, the controller may adjust a phase angle of one or more of the converter phases, wherein the adjustment may be relative to the ramping operation of the one or more of the converter phases.
摘要翻译：在信息处理系统中，多相电气转换器包括电输入，电输出，与电输入和电输出耦合的多个转换器相，以及控制器，用于使一个或多个转换器相随着负载需求的调整。在一个实施例中，转换器可以是具有高侧开关，低侧开关和电感器的多相降压转换器。在一个实施例中，控制器可以通过调整高侧开关的占空比来斜升变换器相位的操作。在一个实施例中，控制器可以调整一个或多个转换器相的相位角，其中调整可以相对于一个或多个转换器相的斜坡运算。

2. 发明申请

US20090322405A1 Enhanced Transistor Gate Drive 有权
标题翻译：增强型晶体管栅极驱动
公开(公告)号：US20090322405A1
公开(公告)日：2009-12-31
申请号：US12163072
申请日：2008-06-27
申请人： Brent A. McDonald , George G. Richards, III , Brian P. Johnson
发明人： Brent A. McDonald , George G. Richards, III , Brian P. Johnson
IPC分类号： H03K17/00
CPC分类号： H03K17/165 , H03K17/145 , H03K2217/0036
摘要： An enhanced transistor gate drive is disclosed in which a pair of Kelvin sense leads measure the voltage potential across at the gate and source of the transistor. The difference in the voltage potential of the Kelvin sense lead from the gate and the Kelvin sense lead of the source is provided to a voltage controlled current source, which compares the output of the voltage differentiator to an oscillating voltage input. Changes to the voltage difference between the Kelvin sense connectors will result in more or less voltage being applied at the gate of the transistor, thereby parasitic inductance in the transistor from causing the device to switch on and off.
摘要翻译：公开了一种增强的晶体管栅极驱动器，其中一对开尔文感测引线测量晶体管的栅极和源极两端的电压电位。来自栅极的开尔文感测引线和源极的开尔文感测引线的电压电位的差异被提供给电压控制电流源，其将电压微分器的输出与振荡电压输入进行比较。对开尔文感测连接器之间的电压差的改变将导致在晶体管的栅极处施加或多或少的电压，从而晶体管中的寄生电感导致器件导通和截止。

3. 发明授权

US07280376B2 Primary side voltage sense for AC/DC power supplies capable of compensation for a voltage drop in the secondary 有权
标题翻译： AC / DC电源的初级侧电压检测能够补偿次级电压降
公开(公告)号：US07280376B2
公开(公告)日：2007-10-09
申请号：US10966785
申请日：2004-10-15
申请人： Brent A. McDonald , Daniel E. Jenkins
发明人： Brent A. McDonald , Daniel E. Jenkins
IPC分类号： H02M3/335 , G05F5/00
CPC分类号： H02M3/33507 , H02M3/33523 , H02M3/33592 , Y02B70/1475
摘要： In a method and system for providing isolated power, a flyback controller includes a transformer operable to receive a primary voltage input and generate a secondary voltage output. A switch electrically coupled in series with a primary side of the transformer receives a control signal for controlling a duty cycle of the primary voltage. A controller is operable to generate the control signal responsive to receiving a plurality of inputs from the primary side. The controller regulates the secondary voltage output without receiving feedback input from a secondary side of the transformer by computing the secondary voltage as a predefined function of the plurality of the inputs when the switch is open.
摘要翻译：在用于提供隔离电力的方法和系统中，回扫控制器包括可变换器，其可操作以接收初级电压输入并产生次级电压输出。与变压器的初级侧串联电耦合的开关接收用于控制初级电压占空比的控制信号。控制器可操作以响应于从初级侧接收多个输入而产生控制信号。当开关断开时，控制器通过计算次级电压作为多个输入的预定义函数来调节次级电压输出而不从变压器的次级侧接收反馈输入。

4. 发明授权

US07162655B2 Method and system for information handling system power control 有权
标题翻译：信息处理系统功率控制方法与系统
公开(公告)号：US07162655B2
公开(公告)日：2007-01-09
申请号：US10620945
申请日：2003-07-16
申请人： Brent A. McDonald , John A. Herrmann , Daniel E. Jenkins
发明人： Brent A. McDonald , John A. Herrmann , Daniel E. Jenkins
IPC分类号： G06F1/26
CPC分类号： G06F1/26
摘要： Power supply response to variations in power demand by a microprocessor is improved with a compensation loops that estimate changes in load current with improved speed. The load current estimate is performed in part with a capacitance feed forward compensation loop that senses voltage at output capacitors to replicate the current present in the capacitors and communicates the capacitor current adjusted by an optimized gain to the power supply for adjustment of power output. Capacitor current is replicated with a frequency domain filter having a pole that cancels out the zero created by power supply equivalent series resistance and capacitor capacitance. The capacitance compensation loop improves power supply response time to microprocessor power demand skews so that the size or number of output capacitors may be reduced while still maintaining power supply at the microprocessor to within desired voltage and current tolerances.
摘要翻译：通过利用改进的速度估计负载电流的变化的补偿回路来提高对微处理器的功率需求变化的供电响应。负载电流估计部分地由电容前馈补偿回路执行，该回路检测输出电容器的电压，以复制电容器中存在的电流，并将通过优化增益调整的电容电流传送到电源以调节功率输出。电容电流由具有极性的频域滤波器复制，该极抵消由电源等效串联电阻和电容器电容产生的零点。电容补偿环路改善了微处理器功率需求偏移的电源响应时间，从而可以减小输出电容器的尺寸或数量，同时仍将微处理器的电源保持在所需的电压和电流公差范围内。

5. 发明授权

US06928568B2 Battery charger current limiting based on maximum current capacity of AC adapter as determined by adapter identification subsystem 有权
标题翻译：基于适配器识别子系统确定的AC适配器的最大电流容量的电池充电器电流限制
公开(公告)号：US06928568B2
公开(公告)日：2005-08-09
申请号：US10077468
申请日：2002-02-15
申请人： John J. Breen , Stacy A. Gower , Brent A. McDonald , Ayedin Nikazm , Richard M. Tonry
发明人： John J. Breen , Stacy A. Gower , Brent A. McDonald , Ayedin Nikazm , Richard M. Tonry
IPC分类号： G06F1/26 , H02J7/04
CPC分类号： H02J7/04 , G06F1/263
摘要： An information handling system comprising a processor, a battery to provide power to the information handling system, an AC adapter input port coupled to the battery configured to receive an AC adapter, and a battery charger coupled to the battery and the AC adapter input port configured to identify a characteristic of the AC adapter and adjust a battery charge current based upon the characteristic. The battery charger comprises an adapter identification subsystem coupled to the AC adapter input port configured to identify the characteristic and provide an adjustment current, and an adjustable charger coupled to the adapter identification subsystem and the battery, configured to set the battery charging current based upon the adjustment current. The AC adapter identification subsystem comprises an adapter identification circuit coupled to the AC adapter input port configured to identify the characteristic, and a microcontroller configured to provide the adjustment current to the adjustable charger.
摘要翻译：一种信息处理系统，包括处理器，向信息处理系统提供电力的电池，耦合到被配置为接收AC适配器的电池的AC适配器输入端口以及被配置为与电池和AC适配器输入端口配置的电池充电器识别AC适配器的特性，并根据特性调整电池充电电流。电池充电器包括耦合到AC适配器输入端口的适配器识别子系统，其被配置为识别特性并提供调节电流，以及耦合到适配器识别子系统和电池的可调节充电器，其被配置为基于调整电流。 AC适配器识别子系统包括耦合到被配置为识别特性的AC适配器输入端口的适配器识别电路和被配置为向可调节充电器提供调节电流的微控制器。

6. 发明授权

US06804091B2 Switching regulator transient suppressor 有权
标题翻译：开关稳压器瞬态抑制器
公开(公告)号：US06804091B2
公开(公告)日：2004-10-12
申请号：US10156913
申请日：2002-05-29
申请人： Daniel E. Jenkins , Brent A. McDonald
发明人： Daniel E. Jenkins , Brent A. McDonald
IPC分类号： H02H700
CPC分类号： H02M3/158
摘要： A circuit for suppressing transients in a voltage regulator due to a load step transient in the demand of the load. The circuit includes a suppressor element that is placed in the current path of the inductor of the switching regulator in response to a determination of an over voltage condition. The suppressor element pulls the voltage level of one side of the inductor below a particular potential, such as, e.g., system ground. Examples of suppressor elements that may be used include zener diodes, diodes, capacitors, resistors, and negative voltage sources. When the current through the inductor has subsided to a particular level, the suppressor element may be removed from the inductor current path, wherein the energy stored in a bulk filter capacitor may be drained through the inductor to the system ground. The suppressor circuit may be used in a information handling system or other type of electronic system.
摘要翻译：用于在负载需求中由于负载阶跃瞬变而抑制电压调节器中的瞬变的电路。该电路包括抑制元件，该抑制元件响应于过电压条件的确定而置于开关调节器的电感器的电流路径中。抑制元件将电感器的一侧的电压电平拉低到特定电位以下，例如系统接地。可以使用的抑制元件的示例包括齐纳二极管，二极管，电容器，电阻器和负电压源。当通过电感器的电流已经消退到特定的电平时，抑制元件可以从电感器电流路径去除，其中存储在体滤波电容器中的能量可以通过电感器被排出到系统地。抑制电路可以用在信息处理系统或其他类型的电子系统中。

7. 发明授权

US07952418B2 Enhanced transistor gate drive 有权
标题翻译：增强晶体管栅极驱动
公开(公告)号：US07952418B2
公开(公告)日：2011-05-31
申请号：US12163072
申请日：2008-06-27
申请人： Brent A. McDonald , George G. Richards, III , Brian P. Johnson
发明人： Brent A. McDonald , George G. Richards, III , Brian P. Johnson
IPC分类号： H03K17/687
CPC分类号： H03K17/165 , H03K17/145 , H03K2217/0036
摘要： An enhanced transistor gate drive is disclosed in which a pair of Kelvin sense leads measure the voltage potential across at the gate and source of the transistor. The difference in the voltage potential of the Kelvin sense lead from the gate and the Kelvin sense lead of the source is provided to a voltage controlled current source, which compares the output of the voltage differentiator to an oscillating voltage input. Changes to the voltage difference between the Kelvin sense connectors will result in more or less voltage being applied at the gate of the transistor, thereby parasitic inductance in the transistor from causing the device to switch on and off.
摘要翻译：公开了一种增强的晶体管栅极驱动器，其中一对开尔文感测引线测量晶体管的栅极和源极两端的电压电位。来自栅极的开尔文感测引线和源极的开尔文感测引线的电压电位的差异被提供给电压控制电流源，其将电压微分器的输出与振荡电压输入进行比较。对开尔文感测连接器之间的电压差的改变将导致在晶体管的栅极处施加或多或少的电压，从而晶体管中的寄生电感导致器件导通和截止。

8. 发明授权

US07635968B2 Techniques for handling low line voltage Conditions in power supply units 有权
标题翻译：用于处理低线路电压的技术电源单元中的条件
公开(公告)号：US07635968B2
公开(公告)日：2009-12-22
申请号：US11626937
申请日：2007-01-25
申请人： Brent A. McDonald , Brian P. Johnson
发明人： Brent A. McDonald , Brian P. Johnson
IPC分类号： G05F1/613 , G05F1/565
CPC分类号： G05F5/00 , Y10S323/908
摘要： A technique for addressing a low line voltage condition in an information handling system includes determining whether a magnitude of an input voltage of a power supply unit (PSU) is below a first threshold for at least a first time period. The technique also includes adjusting, based on the determining, a magnitude of a reference voltage of the PSU to track a magnitude of an output voltage of the PSU when the input voltage is below the first threshold for at least the first time period.
摘要翻译：一种用于在信息处理系统中解决低线路电压状况的技术包括确定电源单元（PSU）的输入电压的大小是否低于第一阈值至少第一时间段。该技术还包括当至少在第一时间段内输入电压低于第一阈值时，基于确定PSU的参考电压的幅度来调整PSU的输出电压的大小。

9. 发明授权

US07236384B2 Frequency feedforward for constant light output in backlight inverters 有权
标题翻译：背光逆变器恒定光输出的频率前馈
公开(公告)号：US07236384B2
公开(公告)日：2007-06-26
申请号：US11325120
申请日：2006-01-04
申请人： Erin L. Price , Brent A. McDonald , Chris Young
发明人： Erin L. Price , Brent A. McDonald , Chris Young
IPC分类号： H02M7/5387
CPC分类号： H02M7/53871 , H05B41/2828 , H05B41/392
摘要： In a method and system for an improved inverter providing power to a load, the inverter receives a direct current (DC) input. A plurality of switches included in the inverter are controlled by a plurality of control signals to generate an alternating current (AC) output in response to the DC input. A zero crossing of the AC output current provided by the plurality of switches is detected, and the controlling of the plurality of switches is delayed in response to the zero crossing. The amount of delay is adjusted responsive to a change in the DC input to effectively maintain a constant switching frequency of the inverter. The delayed AC output current of the plurality of switches is filtered to provide power to the load.
摘要翻译：在用于向负载提供电力的改进逆变器的方法和系统中，逆变器接收直流（DC）输入。逆变器中包括的多个开关由多个控制信号控制，以响应于DC输入产生交流（AC）输出。检测由多个开关提供的交流输出电流的过零点，并且多个开关的控制响应于过零点被延迟。响应于DC输入的变化来调整延迟量，以有效地保持逆变器的恒定的开关频率。对多个开关的延迟交流输出电流进行滤波以向负载提供电力。

10. 发明授权

US07218541B2 High efficiency two stage inverter 有权
标题翻译：高效率两级逆变器
公开(公告)号：US07218541B2
公开(公告)日：2007-05-15
申请号：US10896265
申请日：2004-07-21
申请人： Erin L. Price , Brent A. McDonald
发明人： Erin L. Price , Brent A. McDonald
IPC分类号： H02M7/538
CPC分类号： H02M7/53806 , H02M2001/0019 , H02M2001/0022 , H02M2001/007 , H05B41/2821 , H05B41/2824 , H05B41/2853 , Y02B20/186 , Y02B70/1441
摘要： In a two stage inverter providing power to a load, a first stage component is operable to receive a first voltage input and a first control input to generate a first voltage output, which is higher than the first voltage input. The first control input is indicative of the power provided to the load. The first voltage output varies in response to a change in the first voltage input by a predefined function. A second stage component of the inverter is operable to receive the first voltage output and a second control input to generate the power as an output. The second control input is indicative of the power provided to the load. A controller component of the inverter is operable to receive a feedback input indicative of the power required by the load and generates the first and second control inputs.
摘要翻译：在向负载提供电力的两级逆变器中，第一级组件可操作以接收第一电压输入和第一控制输入，以产生高于第一电压输入的第一电压输出。第一控制输入表示提供给负载的功率。第一电压输出响应于通过预定义功能的第一电压输入的变化而变化。逆变器的第二级组件可操作以接收第一电压输出和第二控制输入以产生功率作为输出。第二控制输入表示提供给负载的功率。逆变器的控制器部件可操作以接收指示负载所需功率的反馈输入并产生第一和第二控制输入。

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