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1. 发明授权

US08841897B2 Voltage regulator having current and voltage foldback based upon load impedance 有权
标题翻译：电压调节器具有基于负载阻抗的电流和电压折返
公开(公告)号：US08841897B2
公开(公告)日：2014-09-23
申请号：US13353995
申请日：2012-01-19
申请人： Matthew Williams , Daniel Leonescu , Scott Dearborn , Christian Albrecht
发明人： Matthew Williams , Daniel Leonescu , Scott Dearborn , Christian Albrecht
IPC分类号： G05F1/10 , G05F1/573
CPC分类号： G05F1/5735
摘要： The regulated output voltage of a voltage regulator is maintained up to a current limit, Ilimit, then as the load impedance continues to decrease the output current does not increase past the current limit, Ilimit, but rather the output voltage decreases forcing the output current to also decrease to satisfy Ohm's Law: IOUT=VOUT/ZLoad. When the output voltage drops below the regulated voltage value because of current limiting the voltage regulator shifts from a current limit mode to a current foldback mode wherein the output current decreases with the decrease in output voltage until the output current reaches a current foldback minimum, Ifoldback, at an output voltage of substantially zero volts. As the load impedance increases so will the output voltage and current until the output voltage is back at substantially the regulation voltage value, and the output current is less than or equal to the current limit, Ilimit.
摘要翻译：电压调节器的稳压输出电压保持在电流限制Ilimit，因此当负载阻抗持续降低时，输出电流不会超过电流限制Ilimit，而是输出电压降低迫使输出电流也降低到符合欧姆定律：IOUT = VOUT / ZLoad。当输出电压由于电流限制而降低到调节电压值以下时，电压调节器从电流限制模式转换到电流折返模式，其中输出电流随着输出电压的降低而减小，直到输出电流达到当前折返最小值Ifoldback ，输出电压基本为零伏特。当负载阻抗增加时，输出电压和电流将直到输出电压恢复到基本上的调节电压值，并且输出电流小于或等于电流限制Ilimit。

2. 发明申请

US20120187930A1 VOLTAGE REGULATOR HAVING CURRENT AND VOLTAGE FOLDBACK BASED UPON LOAD IMPEDANCE 有权
标题翻译：具有基于负载阻抗的电流和电压回归的电压调节器
公开(公告)号：US20120187930A1
公开(公告)日：2012-07-26
申请号：US13353995
申请日：2012-01-19
申请人： Matthew Williams , Daniel Leonescu , Scott Dearborn , Christian Albrecht
发明人： Matthew Williams , Daniel Leonescu , Scott Dearborn , Christian Albrecht
IPC分类号： G05F1/10
CPC分类号： G05F1/5735
摘要： The regulated output voltage of a voltage regulator is maintained up to a current limit, Ilimit, then as the load impedance continues to decrease the output current does not increase past the current limit, Ilimit, but rather the output voltage decreases forcing the output current to also decrease to satisfy Ohm's Law: IOUT=VOUT/ZLoad. When the output voltage drops below the regulated voltage value because of current limiting the voltage regulator shifts from a current limit mode to a current foldback mode wherein the output current decreases with the decrease in output voltage until the output current reaches a current foldback minimum, Ifoldback, at an output voltage of substantially zero volts. As the load impedance increases so will the output voltage and current until the output voltage is back at substantially the regulation voltage value, and the output current is less than or equal to the current limit, Ilimit.
摘要翻译：电压调节器的稳压输出电压保持在电流限制Ilimit，因此当负载阻抗持续降低时，输出电流不会超过电流限制Ilimit，而是输出电压降低迫使输出电流也降低到符合欧姆定律：IOUT = VOUT / ZLoad。当输出电压由于电流限制而降低到调节电压值以下时，电压调节器从电流限制模式转换到电流折返模式，其中输出电流随着输出电压的降低而减小，直到输出电流达到当前折返最小值Ifoldback ，输出电压基本为零伏特。当负载阻抗增加时，输出电压和电流将直到输出电压恢复到基本上的调节电压值，并且输出电流小于或等于电流限制Ilimit。

3. 发明申请

US20110187340A1 EFFECTIVE CURRENT SENSING FOR HIGH VOLTAGE SWITCHING REGULATORS 失效
标题翻译：高电压开关稳压器的有效电流检测
公开(公告)号：US20110187340A1
公开(公告)日：2011-08-04
申请号：US12985746
申请日：2011-01-06
申请人： Philippe Deval , Philippe Gimmel , Marius Budaes , Daniel Leonescu , Terry Cleveland , Scott Dearborn
发明人： Philippe Deval , Philippe Gimmel , Marius Budaes , Daniel Leonescu , Terry Cleveland , Scott Dearborn
IPC分类号： G05F1/618
CPC分类号： H02M3/158 , G01R19/0092 , H02M2001/0009
摘要： A high voltage switching regulator has significantly reduced current sensing delay between measurement of input current and generation of sensed current values, while maintaining good accuracy of the current through a power transistor using current replication and a current conveyor. High sensing accuracy of the input current ensures good load regulation, and low sensing delay ensures fixed duty cycle over a wide range of output currents and high input to output voltage ratios. A current conveyor is used to transfer high side current values to low side control circuits, e.g., pulse width modulation (PWM) control. The current conveyor is always on, e.g., some current flow is always present, thus minimizing any current measurement delay. This is accomplished by dynamically biasing the current conveyor by draining to ground a current equal to the sensed current. Wherein balancing of the current conveyor is ensured and offset at the input of the current conveyor is minimized.
摘要翻译：高电压开关调节器在测量输入电流和产生感应电流值之间大大减少了电流检测延迟，同时通过使用电流复制和电流输送机的功率晶体管保持了良好的电流精度。输入电流的高感测精度确保良好的负载调节，并且低感测延迟确保在宽范围的输出电流和高输入到输出电压比下的固定占空比。目前的输送机用于将高侧电流值传送到低端控制电路，例如脉冲宽度调制（PWM）控制。当前的输送机总是打开，例如，一直存在一些电流，从而最小化任何电流测量延迟。这是通过将等于感测电流的电流通过引流接地来动态地偏置当前输送机来实现的。其中确保了当前输送机的平衡，并且在当前输送机的输入处的偏移被最小化。

4. 发明授权

US08786266B2 Effective current sensing for high voltage switching regulators 失效
标题翻译：高电压开关稳压器的有效电流检测
公开(公告)号：US08786266B2
公开(公告)日：2014-07-22
申请号：US12985746
申请日：2011-01-06
申请人： Philippe Deval , Philippe Gimmel , Marius Budaes , Daniel Leonescu , Terry Cleveland , Scott Dearborn
发明人： Philippe Deval , Philippe Gimmel , Marius Budaes , Daniel Leonescu , Terry Cleveland , Scott Dearborn
IPC分类号： G05F1/00
CPC分类号： H02M3/158 , G01R19/0092 , H02M2001/0009
摘要： A high voltage switching regulator has significantly reduced current sensing delay between measurement of input current and generation of sensed current values, while maintaining good accuracy of the current through a power transistor using current replication and a current conveyor. High sensing accuracy of the input current ensures good load regulation, and low sensing delay ensures fixed duty cycle over a wide range of output currents and high input to output voltage ratios. A current conveyor is used to transfer high side current values to low side control circuits, e.g., pulse width modulation (PWM) control. The current conveyor is always on, e.g., some current flow is always present, thus minimizing any current measurement delay. This is accomplished by dynamically biasing the current conveyor by draining to ground a current equal to the sensed current. Wherein balancing of the current conveyor is ensured and offset at the input of the current conveyor is minimized.
摘要翻译：高电压开关调节器在测量输入电流和产生感应电流值之间大大减少了电流检测延迟，同时通过使用电流复制和电流输送机的功率晶体管保持了良好的电流精度。输入电流的高感测精度确保良好的负载调节，并且低感测延迟确保在宽范围的输出电流和高输入到输出电压比下的固定占空比。目前的输送机用于将高侧电流值传送到低端控制电路，例如脉冲宽度调制（PWM）控制。当前的输送机总是打开，例如，一直存在一些电流，从而最小化任何电流测量延迟。这是通过将等于感测电流的电流通过引流接地来动态地偏置当前输送机来实现的。其中确保了当前输送机的平衡，并且在当前输送机的输入处的偏移被最小化。

5. 发明申请

US20120169308A1 RELATIVE EFFICIENCY MEASUREMENT IN A PULSE WIDTH MODULATION SYSTEM 有权
标题翻译：脉冲宽度调制系统的相对效率测量
公开(公告)号：US20120169308A1
公开(公告)日：2012-07-05
申请号：US13313223
申请日：2011-12-07
申请人： Scott Dearborn , Terry L. Cleveland , Clifford N. Ellison, III
发明人： Scott Dearborn , Terry L. Cleveland , Clifford N. Ellison, III
IPC分类号： G05F1/10
CPC分类号： H02M3/157 , H02M3/1588 , H02M2001/0048 , Y02B70/1466 , Y02B70/1491
摘要： A pulse width modulation (PWM) power conversion system has improved efficiency over a wide operating input voltage and load range. Being able to measure relative efficiency of an analog PWM system allows enhanced control while maintaining the benefits of analog control. An analog low pass filter produces an average value of the PWM pulse train, then this analog average value is converted into digital values with an analog-to-digital converter and stored so that relative efficiencies of the PWM power conversion system may be compared for various combinations of operating parameters.
摘要翻译：脉宽调制（PWM）功率转换系统在宽的工作输入电压和负载范围内提高了效率。能够测量模拟PWM系统的相对效率允许增强控制，同时保持模拟控制的好处。模拟低通滤波器产生PWM脉冲序列的平均值，然后将该模拟平均值用模数转换器转换为数字值，并存储，以便可以比较各种PWM功率转换系统的相对效率操作参数组合。

6. 发明申请

US20120139519A1 LOSSLESS INDUCTOR CURRENT SENSING IN A SWITCH-MODE POWER SUPPLY 有权
标题翻译：开关电源中的无电感电感电流检测
公开(公告)号：US20120139519A1
公开(公告)日：2012-06-07
申请号：US12959837
申请日：2010-12-03
申请人： Scott Dearborn
发明人： Scott Dearborn
IPC分类号： G05F1/10 , H03J3/02
CPC分类号： H02M3/1588 , H02M2001/0009 , Y02B70/1466
摘要： A lossless inductor current sense technique integrates a matched, tunable complimentary filter with a switch mode power supply (SMPS) controller for accurately measuring current through the power inductor of the SMPS without introducing losses in the power circuit. The complimentary filter can be adjusted in-circuit to significantly reduce the effects of component tolerances, accurately measuring the power inductor current for over current protection and/or closed loop control. The frequency pole and gain of the complimentary integrated filter can be adjusted on the fly in order to adapt to dynamically changing operating conditions of the SMPS system.
摘要翻译：无损耗电感器电流检测技术将匹配的可调谐互补滤波器与开关模式电源（SMPS）控制器集成，用于精确测量通过SMPS的功率电感器的电流，而不会在电源电路中引入损耗。补偿滤波器可以在线调整，以显着降低元件公差的影响，精确测量过电流保护和/或闭环控制的功率电感电流。补充集成滤波器的频率极点和增益可以随时调整，以适应动态变化的SMPS系统的工作条件。

7. 发明授权

US09018928B2 Relative efficiency measurement in a pulse width modulation system 有权
标题翻译：脉宽调制系统的相对效率测量
公开(公告)号：US09018928B2
公开(公告)日：2015-04-28
申请号：US13313223
申请日：2011-12-07
申请人： Scott Dearborn , Terry L. Cleveland , Clifford N. Ellison, III
发明人： Scott Dearborn , Terry L. Cleveland , Clifford N. Ellison, III
IPC分类号： H02M3/157 , H02M3/158 , H02M1/00
CPC分类号： H02M3/157 , H02M3/1588 , H02M2001/0048 , Y02B70/1466 , Y02B70/1491
摘要： A pulse width modulation (PWM) power conversion system has improved efficiency over a wide operating input voltage and load range. Being able to measure relative efficiency of an analog PWM system allows enhanced control while maintaining the benefits of analog control. An analog low pass filter produces an average value of the PWM pulse train, then this analog average value is converted into digital values with an analog-to-digital converter and stored so that relative efficiencies of the PWM power conversion system may be compared for various combinations of operating parameters.
摘要翻译：脉宽调制（PWM）功率转换系统在宽的工作输入电压和负载范围内提高了效率。能够测量模拟PWM系统的相对效率允许增强控制，同时保持模拟控制的好处。模拟低通滤波器产生PWM脉冲序列的平均值，然后将该模拟平均值用模数转换器转换为数字值，并存储，以便可以比较各种PWM功率转换系统的相对效率操作参数组合。

8. 发明授权

US08922183B2 Adaptive integrated analog control system compensation 有权
标题翻译：自适应集成模拟控制系统补偿
公开(公告)号：US08922183B2
公开(公告)日：2014-12-30
申请号：US13325805
申请日：2011-12-14
申请人： Scott Dearborn , Terry L. Cleveland , Clifford N. Ellison, III
发明人： Scott Dearborn , Terry L. Cleveland , Clifford N. Ellison, III
IPC分类号： G05F1/00 , H02M3/158 , H02M1/00
CPC分类号： H02M3/1588 , H02M3/157 , H02M2001/0025 , Y02B70/1466
摘要： An analog closed-loop, negative feedback system that adapts feedback compensation during operation thereof to improve dynamic performance thereof. Using a pure analog control loop with digital assist provides speed and simplicity of an analog control loop with the flexibility of digital control. Adapting the compensation allows the system to accurately predict and adjust, at all DC operating points, (1) the margin of stability of the converter, against closed loop oscillation, and (2) the frequency-domain and time-domain responses to perturbations in the input voltage and/or the output current. Operational transconductance amplifiers (OTAs) and digitally controlled digital-to-analog converters (IDACs) are used to dynamically change the operating parameters of the analog closed-loop of the negative feedback system. The negative feedback system may be a switch mode power supply (SMPS).
摘要翻译：一种模拟闭环负反馈系统，其在其操作期间适应反馈补偿以改善其动态性能。使用具有数字辅助功能的纯模拟控制回路可提供模拟控制回路的速度和简便性，具有数字控制的灵活性。适应补偿允许系统在所有直流工作点准确地预测和调整，（1）转换器的稳定裕度对闭环振荡，以及（2）频域和时域对于扰动的响应输入电压和/或输出电流。操作跨导放大器（OTA）和数字控制的数模转换器（IDAC）用于动态改变负反馈系统的模拟闭环的工作参数。负反馈系统可以是开关模式电源（SMPS）。

9. 发明授权

US08339113B2 Buck switch-mode power converter large signal transient response optimizer 有权
标题翻译：降压开关模式电源转换器大信号瞬态响应优化器
公开(公告)号：US08339113B2
公开(公告)日：2012-12-25
申请号：US12839012
申请日：2010-07-19
申请人： Scott Dearborn
发明人： Scott Dearborn
IPC分类号： G05F1/656 , G05F1/56
CPC分类号： H02M3/156 , H02M2003/1566
摘要： A switch mode power supply (SMPS) response to a disturbance is improved by using a hysteretic control in combination with a fixed frequency, pulse-width modulated (PWM) controller for providing robust control and optimizing the response to disturbances in buck or buck derived switch mode power supply (SMPS) system topologies.
摘要翻译：通过使用滞后控制与固定频率，脉冲宽度调制（PWM）控制器组合的开关模式电源（SMPS）对干扰的响应得到改善，用于提供稳健的控制和优化对降压或降压导出开关的干扰的响应模式电源（SMPS）系统拓扑。

10. 发明申请

US20120169310A1 ADAPTIVE INTEGRATED ANALOG CONTROL SYSTEM COMPENSATION 有权
标题翻译：自适应集成模拟控制系统补偿
公开(公告)号：US20120169310A1
公开(公告)日：2012-07-05
申请号：US13325805
申请日：2011-12-14
申请人： Scott Dearborn , Terry L. Cleveland , Clifford N. Ellison, III
发明人： Scott Dearborn , Terry L. Cleveland , Clifford N. Ellison, III
IPC分类号： G05F1/10
CPC分类号： H02M3/1588 , H02M3/157 , H02M2001/0025 , Y02B70/1466
摘要： An analog closed-loop, negative feedback system that adapts feedback compensation during operation thereof to improve dynamic performance thereof. Using a pure analog control loop with digital assist provides speed and simplicity of an analog control loop with the flexibility of digital control. Adapting the compensation allows the system to accurately predict and adjust, at all DC operating points, (1) the margin of stability of the converter, against closed loop oscillation, and (2) the frequency-domain and time-domain responses to perturbations in the input voltage and/or the output current. Operational transconductance amplifiers (OTAs) and digitally controlled digital-to-analog converters (IDACs) are used to dynamically change the operating parameters of the analog closed-loop of the negative feedback system. The negative feedback system may be a switch mode power supply (SMPS).
摘要翻译：一种模拟闭环负反馈系统，其在其操作期间适应反馈补偿以改善其动态性能。使用具有数字辅助功能的纯模拟控制回路可提供模拟控制回路的速度和简便性，具有数字控制的灵活性。适应补偿允许系统在所有直流工作点准确地预测和调整，（1）转换器的稳定裕度对闭环振荡，以及（2）频域和时域对于扰动的响应输入电压和/或输出电流。操作跨导放大器（OTA）和数字控制的数模转换器（IDAC）用于动态改变负反馈系统的模拟闭环的工作参数。负反馈系统可以是开关模式电源（SMPS）。

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