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71. 发明申请

US20120026027A1 A/D CONVERTER USING ISOLATION SWITCHES 有权
标题翻译： A / D转换器使用隔离开关
公开(公告)号：US20120026027A1
公开(公告)日：2012-02-02
申请号：US12844727
申请日：2010-07-27
申请人： Jesper Steensgaard-Madsen
发明人： Jesper Steensgaard-Madsen
IPC分类号： H03M1/38 , H03K5/00 , H03M1/12
CPC分类号： H03M1/466
摘要： In an A/D converter, isolation switches are used between the capacitors and the conversion switches. The conversion switches are those switches used to selectively couple the plates of the binary weighted capacitors to either Vref or 0 volts during the A/D conversion process. During sampling of the input voltage signal, the isolation switches are opened to isolate the conversion switches from the wide range of possible input voltages at the bottom plates of the capacitors. Therefore, the voltage across the conversion switches is substantially limited to Vref. Hence, the conversion switches can be very fast low voltage switches. After sampling of the input voltage, when the sampled input voltage is locked in, the conversion switches operate normally to selectively connect the capacitor plates to either Vref or 0 volts for successively approximating the input voltage, whereby a digital code representing the sampled input voltage is generated.
摘要翻译：在A / D转换器中，电容器和转换开关之间使用隔离开关。转换开关是用于在A / D转换过程期间将二进制加权电容器的板选择性地耦合到Vref或0伏的那些开关。在采样输入电压信号期间，隔离开关被打开以将转换开关与电容器底板的可能输入电压的宽范围隔离开来。因此，转换开关两端的电压基本上限制在Vref。因此，转换开关可以是非常快速的低压开关。在对输入电压进行采样之后，当采样的输入电压被锁定时，转换开关正常工作，选择性地将电容器板连接到Vref或0伏，以连续逼近输入电压，从而表示采样输入电压的数字代码为生成。

72. 发明授权

US08014412B2 Power sourcing equipment having bipolar junction transistor for controlling power supply and supporting AC disconnect-detection function 有权
标题翻译：具有双极结型晶体管的电源设备，用于控制电源并支持交流断开检测功能
公开(公告)号：US08014412B2
公开(公告)日：2011-09-06
申请号：US11406334
申请日：2006-04-19
申请人： Jacob Herbold
发明人： Jacob Herbold
IPC分类号： H04L12/28 , H04L12/56 , H01L21/70 , H02M7/02 , H04M9/00
CPC分类号： H04L12/10
摘要： A power supply system for providing power to a powered device over a communication link includes a power supply device capable of supporting an AC disconnect-detect function. The power supply device has a controller, an output port coupled to the communication link, and a bipolar junction transistor (BJT) controlled by the controller to provide power to the output port. The BJT may be turned off to present a high impedance required to support the AC disconnect-detection function.
摘要翻译：用于通过通信链路向受电设备提供电力的电源系统包括能够支持AC断开检测功能的电源装置。电源装置具有控制器，耦合到通信链路的输出端口以及由控制器控制以向输出端口供电的双极结型晶体管（BJT）。可以关闭BJT以呈现支持AC断开检测功能所需的高阻抗。

73. 发明申请

US20110187573A1 TIME-MULTIPLEXED RESIDUE AMPLIFIER 有权
标题翻译：时间多功能残留放大器
公开(公告)号：US20110187573A1
公开(公告)日：2011-08-04
申请号：US12698020
申请日：2010-02-01
申请人： Andrew J. Thomas , Joseph L. Sousa
发明人： Andrew J. Thomas , Joseph L. Sousa
IPC分类号： H03M1/12
CPC分类号： H03M1/0619 , H03F3/211 , H03F3/72 , H03F2203/7215 , H03F2203/7221 , H03M1/1225 , H03M1/164 , H03M1/365 , H03M1/468
摘要： A system is configured and a method is provided for receiving an input ratio represented by a first input signal and a second input signal, and producing an output ratio represented by a first output signal and a second output signal. The system is constructed and the method is provided for alternately operating in at least two time periods, wherein in one time period the first input signal, a low accuracy amplifier, and the first output signal are selectively coupled, and in another time period the input signal, the low accuracy amplifier, a high accuracy attenuator, and the second output signal are selectively coupled so as to maintain the output ratio proportional to the input ratio.
摘要翻译：配置系统，并且提供一种用于接收由第一输入信号和第二输入信号表示的输入比率的方法，并且产生由第一输出信号和第二输出信号表示的输出比。该系统被构造并且提供了用于在至少两个时间段中交替操作的方法，其中在一个时间段中，第一输入信号，低精度放大器和第一输出信号被选择性地耦合，并且在另一个时间段内输入信号，低精度放大器，高精度衰减器和第二输出信号被选择性地耦合，以保持与输入比成比例的输出比。

74. 发明授权

US07990120B2 Circuits and methods for adjustable peak inductor current and hysteresis for burst mode in switching regulators 有权
标题翻译：可调峰值电感电流和开关稳压器中突发模式滞后的电路和方法
公开(公告)号：US07990120B2
公开(公告)日：2011-08-02
申请号：US11499005
申请日：2006-08-04
申请人： Jason Leonard , Joey Martin Esteves
发明人： Jason Leonard , Joey Martin Esteves
IPC分类号： G05F1/00 , G05F3/16
CPC分类号： H02M3/156 , H02M2001/0032 , Y02B70/16
摘要： Switching regulator circuits and methods are provided for regulating output voltage that include an adjustable minimum peak inductor current level and adjustable burst comparator hysteresis for Burst Mode operation in switching regulators. Control over minimum peak inductor current level and burst comparator hysteresis is achieved during Burst Mode operation by allowing external user control of the burst threshold level and the burst comparator hysteresis. A single user-accessible input pin, two user-accessible input pins, or three user-accessible input pins may be used to distinguish between forced continuous and Burst Mode operations, set a burst threshold level, and set a burst comparator hysteresis during Burst Mode operation. The present invention may be applied to buck, boost, buck-boost, or any other suitable regulator circuit configuration. The present invention also may be employed with synchronous and non-synchronous switching regulators.
摘要翻译：提供开关稳压器电路和方法，用于调节输出电压，包括可调节的最小峰值电感电流电平和可调节的脉冲串比较器迟滞，用于开关稳压器中的突发模式操作。通过允许外部用户控制突发阈值电平和突发比较器滞后，在突发模式操作期间实现对最小峰值电感电流电平和脉冲串比较器滞后的控制。可以使用单个用户可访问的输入引脚，两个用户可访问的输入引脚或三个用户可访问的输入引脚来区分强制连续和突发模式操作，设置突发阈值电平，并在突发模式下设置突发比较器滞后操作。本发明可以应用于降压，升压，降压 - 升压或任何其他合适的调节器电路配置。本发明也可以用于同步和非同步开关调节器。

75. 发明授权

US07961132B1 Sampling switch and controller 有权
标题翻译：采样开关和控制器
公开(公告)号：US07961132B1
公开(公告)日：2011-06-14
申请号：US12699794
申请日：2010-02-03
申请人： Raymond T. Perry , Jesper Steensgaard-Madsen
发明人： Raymond T. Perry , Jesper Steensgaard-Madsen
IPC分类号： H03M1/12
CPC分类号： H03M1/0607 , H03M1/466 , H03M1/468
摘要： In one embodiment, an A/D converter samples an analog input signal voltage by applying the input signal to a first capacitor terminal, while a second capacitor terminal is connected to ground via an NMOS sampling switch, to charge the capacitor to the input signal voltage. During an analog-to-digital conversion process, the second capacitor terminal may swing in a voltage range that extends below ground. A controller circuit provides bias voltage signals to a gate terminal and to a p-well of the NMOS sampling switch, to selectively turn the sampling switch on and off. In a first step of a multi-step sampling process, the controller very quickly discharges the gate terminal to ground to isolate a quantity of charge on the second capacitor plate. In a subsequent step of the sampling process, the controller circuit applies a negative voltage to the gate terminal and p-well to ensure that the quantity of change is substantially preserved during the ensuing analog-to-digital conversion process.
摘要翻译：在一个实施例中，A / D转换器通过将输入信号施加到第一电容器端子来对模拟输入信号电压进行采样，而第二电容器端子经由NMOS采样开关连接到地，以将电容器充电到输入信号电压。在模数转换处理期间，第二电容器端子可以在低于地面的电压范围内摆动。控制器电路向NMOS采样开关的栅极端子和p阱提供偏置电压信号，以选择性地打开和关闭采样开关。在多步采样过程的第一步中，控制器非常快速地将栅极端子放电到地以隔离第二电容器板上的电荷量。在采样过程的后续步骤中，控制器电路向栅极端子和p阱施加负电压，以确保在随后的模数转换过程期间基本上保持变化量。

76. 发明授权

US07940091B1 Bootstrapped switch for sampling voltages beyond the supply voltage 有权
标题翻译：用于采样电压超过电源电压的自举开关
公开(公告)号：US07940091B1
公开(公告)日：2011-05-10
申请号：US12396151
申请日：2009-03-02
申请人： Srikanth Govindarajulu , Andrew Joseph Gardner , Robert C. Chiacchia
发明人： Srikanth Govindarajulu , Andrew Joseph Gardner , Robert C. Chiacchia
IPC分类号： H03K5/00
CPC分类号： H03K19/01735 , G11C27/02 , H03K17/063
摘要： Methods and apparatus for sampling an input voltage and apparatus incorporating the same are disclosed. An input voltage sampling apparatus includes a voltage sampling circuit coupled to the input voltage and configured to produce a sampled input voltage at an output terminal, and a voltage charging circuit coupled to the voltage sampling device and producing a first charged voltage on a first charged voltage output terminal and a second charged voltage on a second charged voltage output terminal. A voltage charging enabling circuit is coupled to the voltage charging circuit, the voltage sampling device via the first connection, and a power supply voltage. Further, the input voltage sampling apparatus includes a control circuit coupled to the voltage sampling circuit, the voltage charging circuit, and the power supply voltage, ground, third and fourth pulse signals. The first and third pulse signals are non-overlapping with the second and fourth pulse signals. The first pulse signal is delayed on the rising edge of the third pulse signal and the second pulse signal is delayed on the rising edge of the fourth pulse signal. The voltage sampling apparatus is capable of sampling an input voltage that is higher than the power supply voltage.
摘要翻译：公开了用于对输入电压进行采样的方法和装置及其结合的装置。输入电压采样装置包括耦合到输入电压并被配置为在输出端产生采样输入电压的电压采样电路，以及耦合到电压采样装置并在第一充电电压上产生第一充电电压的电压充电电路输出端子和第二充电电压输出端子上的第二充电电压。电压充电使能电路经由第一连接与电压充电电路，电压取样装置和电源电压耦合。此外，输入电压采样装置包括耦合到电压采样电路，电压充电电路和电源电压，接地，第三和第四脉冲信号的控制电路。第一和第三脉冲信号与第二和第四脉冲信号不重叠。第一脉冲信号在第三脉冲信号的上升沿延迟，第二脉冲信号在第四脉冲信号的上升沿被延迟。电压采样装置能够对高于电源电压的输入电压进行采样。

77. 发明授权

US07893665B2 Peak charging current modulation for burst mode conversion 有权
标题翻译：用于突发模式转换的峰值充电电流调制
公开(公告)号：US07893665B2
公开(公告)日：2011-02-22
申请号：US11219722
申请日：2005-09-07
申请人： Mark Anthony Belch
发明人： Mark Anthony Belch
IPC分类号： G05F1/10 , G05F1/56
CPC分类号： H02M3/1582 , H02M2001/0032 , Y02B70/16
摘要： During burst mode operation of a four switch buck-boost converter, the input voltage and an output voltage can be detected and a preset peak charging current threshold level can be modulated when the difference between the input voltage and output voltage is within a prescribed range. A burst mode charging cycle will progress until the modulated peak charging threshold level is attained and cut off at the set peak level. A charge transfer cycle and discharge cycle may proceed thereafter.
摘要翻译：在四开关降压 - 升压转换器的突发模式操作期间，可以检测输入电压和输出电压，并且当输入电压和输出电压之间的差在规定范围内时，可以调制预设的峰值充电电流阈值电平。突发模式充电周期将进行，直到达到调制的峰值充电阈值电平并在设定的峰值电平被切断。此后可以进行电荷转移循环和放电循环。

78. 发明申请

US20100289547A1 PULSE-WIDTH MODULATION (PWM) WITH INDEPENDENTLY ADJUSTABLE DUTY CYCLE AND FREQUENCY USING TWO ADJUSTABLE DELAYS 有权
标题翻译：具有独立可调节占空比的脉冲宽度调制（PWM）和使用两个可调延迟的频率
公开(公告)号：US20100289547A1
公开(公告)日：2010-11-18
申请号：US12863699
申请日：2009-07-17
申请人： Andrew Harvey Crofts
发明人： Andrew Harvey Crofts
IPC分类号： H03K3/017
CPC分类号： H03K7/08 , H03K5/1565
摘要： A pulse width modulation circuit may generate an adjustable output signal that periodically transitions between a first and a second state with an adjustable duty cycle. A first pulse generator circuit may be configured to generate a first pulse signal that periodically transitions at an adjustable delay with respect to a periodic reference signal. A second pulse generator circuit may be configured to generate a second pulse signal that periodically transitions at an adjustable delay with respect to the periodic reference signal. A logic circuit may be configured to generate the adjustable output signal based on both the first and the second pulse signals.
摘要翻译：脉冲宽度调制电路可以产生可调整的输出信号，其周期性地在第一和第二状态之间以可调占空比转变。第一脉冲发生器电路可以被配置为产生相对于周期性参考信号以可调延迟周期性地转变的第一脉冲信号。第二脉冲发生器电路可以被配置为产生相对于周期性参考信号以可调延迟周期性地转变的第二脉冲信号。逻辑电路可以被配置为基于第一和第二脉冲信号产生可调节输出信号。

79. 发明授权

US07834600B2 Regulated power supply system and an operating method therefore 有权
标题翻译：因此，调节电源系统和操作方法
公开(公告)号：US07834600B2
公开(公告)日：2010-11-16
申请号：US12000595
申请日：2007-12-14
申请人： Keith Nelson Bassett , Ralph Edward Anderson , Samuel H. Nork
发明人： Keith Nelson Bassett , Ralph Edward Anderson , Samuel H. Nork
IPC分类号： G05F1/00
CPC分类号： G05F1/56 , H02M1/44 , H02M3/157 , H02M2001/0045
摘要： A power supply system includes a regulator for receiving an input voltage and producing an output voltage, the regulator including an output device and a controller coupled to the regulator. The controller is configured to monitor at least one operating parameter of the output device and, in response, generate a control signal that adjusts the input voltage to a minimum input voltage needed to maintain the output device in saturation regardless of variation in the monitored operating parameter.
摘要翻译：电源系统包括用于接收输入电压并产生输出电压的调节器，所述调节器包括输出装置和耦合到所述调节器的控制器。控制器被配置为监视输出设备的至少一个操作参数，并且作为响应，生成控制信号，其将输入电压调整到维持输出设备饱和所需的最小输入电压，而不管监视的操作参数如何变化。

80. 发明授权

US07831844B2 Integrated powered device connector in system for supplying power over communication link 有权
标题翻译：系统中的集成有源设备连接器，用于通过通信链路供电
公开(公告)号：US07831844B2
公开(公告)日：2010-11-09
申请号：US11594091
申请日：2006-11-08
申请人： Nevzat Akin Kestelli
发明人： Nevzat Akin Kestelli
IPC分类号： G06F1/00
CPC分类号： H04L12/10 , H04L25/0264 , H04L41/08 , H04L49/40 , Y02D30/30 , Y02D30/32 , Y04S40/162
摘要： An integrated connecting device for coupling a communication link to a powered device (PD) in a system for supplying power to the PD over the communication link. The integrated connecting device has a housing configured for providing connection to the PD external with respect to the housing, communication interface circuitry coupled to the communication link for supporting data communication of the PD over the communication link, and power interface circuitry coupled to the communication interface circuitry for implementing a power supply protocol performed to supply power to the PD over the communication link. The communication interface circuitry and the power interface circuitry being held by the housing.
摘要翻译：一种用于将通信链路耦合到用于通过通信链路向PD提供电力的系统中的受电设备（PD）的集成连接装置。集成连接装置具有被配置用于相对于外壳提供到外部PD的连接的外壳，耦合到通信链路的通信接口电路，用于支持通过通信链路的PD的数据通信，以及耦合到通信接口的电源接口电路用于实现通过通信链路向PD供电的电源协议的电路。通信接口电路和电源接口电路由壳体保持。

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