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1. 发明授权

US08754626B2 Switching regulator with input current limiting capabilities 有权
标题翻译：具有输入电流限制功能的开关稳压器
公开(公告)号：US08754626B2
公开(公告)日：2014-06-17
申请号：US12818270
申请日：2010-06-18
申请人： Ira G. Miller , Ricardo Takase Goncalves , John M. Pigott
发明人： Ira G. Miller , Ricardo Takase Goncalves , John M. Pigott
IPC分类号： G05F1/56 , G05F1/565 , G05F1/575 , G05F1/595
CPC分类号： H02M1/32 , H02M3/1588 , H02M2001/0009 , Y02B70/1466
摘要： A switching regulator includes a capacitor, a charge control circuit, a discharge detector, a switch circuit, and a feedback circuit. The charge control circuit charges and discharges the capacitor. The discharge detector has an input coupled to the capacitor to detect when the capacitor has discharged to a predetermined level to indicate an over-current condition. The switch circuit is coupled to receive an input voltage. The switch circuit is made conductive and non conductive by a switching signal for supplying an output voltage at a regulated voltage level. The duty cycle of the switching signal is reduced in response to an indication of an over-current condition. The feedback circuit is for controlling a discharge rate of the capacitor.
摘要翻译：开关稳压器包括电容器，充电控制电路，放电检测器，开关电路和反馈电路。充电控制电路对电容器进行充电和放电。放电检测器具有耦合到电容器的输入，以检测电容器何时放电到预定电平以指示过电流状态。开关电路被耦合以接收输入电压。开关电路通过用于以稳定电压电平提供输出电压的开关信号导通和不导通。响应于过电流状态的指示，开关信号的占空比被减小。反馈电路用于控制电容器的放电率。

2. 发明申请

US20110309812A1 SWITCHING REGULATOR WITH INPUT CURRENT LIMITING CAPABILITIES 有权
标题翻译：具有输入电流限制能力的开关稳压器
公开(公告)号：US20110309812A1
公开(公告)日：2011-12-22
申请号：US12818270
申请日：2010-06-18
申请人： Ira G. Miller , Ricardo Takase Goncalves , John M. Pigott
发明人： Ira G. Miller , Ricardo Takase Goncalves , John M. Pigott
IPC分类号： G05F1/10
CPC分类号： H02M1/32 , H02M3/1588 , H02M2001/0009 , Y02B70/1466
摘要： A switching regulator includes a capacitor, a charge control circuit, a discharge detector, a switch circuit, and a feedback circuit. The charge control circuit charges and discharges the capacitor. The discharge detector has an input coupled to the capacitor to detect when the capacitor has discharged to a predetermined level to indicate an over-current condition. The switch circuit is coupled to receive an input voltage. The switch circuit is made conductive and non conductive by a switching signal for supplying an output voltage at a regulated voltage level. The duty cycle of the switching signal is reduced in response to an indication of an over-current condition. The feedback circuit is for controlling a discharge rate of the capacitor.
摘要翻译：开关稳压器包括电容器，充电控制电路，放电检测器，开关电路和反馈电路。充电控制电路对电容器进行充电和放电。放电检测器具有耦合到电容器的输入，以检测电容器何时放电到预定电平以指示过电流状态。开关电路被耦合以接收输入电压。开关电路通过用于以稳定电压电平提供输出电压的开关信号导通和不导通。响应于过电流状态的指示，开关信号的占空比被减小。反馈电路用于控制电容器的放电率。

3. 发明授权

US08970285B2 Dual supply level shifter circuits 有权
标题翻译：双电源电平转换电路
公开(公告)号：US08970285B2
公开(公告)日：2015-03-03
申请号：US13831828
申请日：2013-03-15
申请人： John M. Pigott , Ira G. Miller , Paul E. Fletcher
发明人： John M. Pigott , Ira G. Miller , Paul E. Fletcher
IPC分类号： H03L5/00
CPC分类号： H03K19/018528 , H03K19/018521
摘要： A dual supply level shifter circuit includes a switching circuit and a set of level shifter circuits coupled to the switching circuit. The switching circuit includes a first set of coupled transistors, wherein the supply switching circuit is coupled to a first supply source that is configured to provide a first power supply voltage and is coupled to a second supply source that is configured to provide a second power supply voltage. The set of level shifter circuits includes a second set of coupled transistors, wherein the set of level shifter circuits is configured to receive a voltage input signal at an input node from a first circuit and to supply to an output node of the dual supply level shifter circuit an output signal having a value that is a highest voltage value between the first power supply voltage and the second power supply voltage.
摘要翻译：双电源电平移位器电路包括开关电路和耦合到开关电路的一组电平移位器电路。开关电路包括第一组耦合的晶体管，其中电源开关电路耦合到第一电源，该第一电源被配置为提供第一电源电压并被耦合到第二电源，该第二电源被配置为提供第二电源电压。该组电平移位器电路包括第二组耦合晶体管，其中该组电平移位器电路被配置为从第一电路接收输入节点处的电压输入信号并提供给双电源电平移位器的输出节点对具有第一电源电压和第二电源电压之间的最高电压值的值的输出信号进行电路化。

4. 发明申请

US20140266385A1 DUAL SUPPLY LEVEL SHIFTER CIRCUITS 有权
标题翻译：双电源电平更换电路
公开(公告)号：US20140266385A1
公开(公告)日：2014-09-18
申请号：US13831828
申请日：2013-03-15
申请人： John M. Pigott , Ira G. Miller , Paul E. Fletcher
发明人： John M. Pigott , Ira G. Miller , Paul E. Fletcher
IPC分类号： H03L5/00
CPC分类号： H03K19/018528 , H03K19/018521
摘要： A dual supply level shifter circuit includes a switching circuit and a set of level shifter circuits coupled to the switching circuit. The switching circuit includes a first set of coupled transistors, wherein the supply switching circuit is coupled to a first supply source that is configured to provide a first power supply voltage and is coupled to a second supply source that is configured to provide a second power supply voltage. The set of level shifter circuits includes a second set of coupled transistors, wherein the set of level shifter circuits is configured to receive a voltage input signal at an input node from a first circuit and to supply to an output node of the dual supply level shifter circuit an output signal having a value that is a highest voltage value between the first power supply voltage and the second power supply voltage.
摘要翻译：双电源电平移位器电路包括开关电路和耦合到开关电路的一组电平移位器电路。开关电路包括第一组耦合的晶体管，其中电源开关电路耦合到第一电源，该第一电源被配置为提供第一电源电压并被耦合到第二电源，该第二电源被配置为提供第二电源电压。该组电平移位器电路包括第二组耦合晶体管，其中该组电平移位器电路被配置为从第一电路接收输入节点处的电压输入信号并提供给双电源电平移位器的输出节点对具有第一电源电压和第二电源电压之间的最高电压值的值的输出信号进行电路化。

5. 发明申请

US20100271078A1 CIRCUITRY IN A DRIVER CIRCUIT 有权
标题翻译：驱动电路中的电路
公开(公告)号：US20100271078A1
公开(公告)日：2010-10-28
申请号：US12429491
申请日：2009-04-24
申请人： Ira G. Miller , John M. Pigott
发明人： Ira G. Miller , John M. Pigott
IPC分类号： H03K3/00 , H03L5/00
CPC分类号： H03K3/356113 , H02M1/08 , H02M3/1588 , H03K3/0375 , H03K17/6874 , H03K2217/0081 , Y02B70/1466
摘要： A driver circuit includes a first and a second voltage rail, a first pre-driver circuit, a power transistor, comparison circuitry which indicates when a voltage level of the first voltage rails is above or below a reference voltage level, a level shift circuit coupled between the first voltage rail and the second voltage rail which provides a level shifted output, a tapered buffer circuit coupled to the first voltage rail and to a first circuit node, wherein the tapered buffer circuit receives the level shifted output and provides a buffered output to a control electrode of the first pre-driver transistor, and a rail voltage adjusting circuit coupled between the first circuit node and the second voltage rail, which, in response to the comparison circuitry indicating that the voltage level of the first voltage rail is above the reference voltage level, adjusts a voltage level of the second voltage rail.
摘要翻译：驱动器电路包括第一和第二电压轨，第一预驱动器电路，功率晶体管，比较电路，其指示第一电压轨的电压电平何时高于或低于参考电压电平;电平移位电路耦合在提供电平移位输出的第一电压轨和第二电压轨之间，耦合到第一电压轨和第一电路节点的渐缩缓冲电路，其中锥形缓冲电路接收电平移位输出并提供缓冲输出所述第一预驱动晶体管的控制电极以及耦合在所述第一电路节点和所述第二电压轨之间的轨电压调整电路，所述轨电压调整电路响应于所述比较电路，指示所述第一电压轨的电压高于参考电压电平，调整第二电压轨的电压电平。

6. 发明授权

US07808286B1 Circuitry in a driver circuit 有权
标题翻译：电路中的驱动电路
公开(公告)号：US07808286B1
公开(公告)日：2010-10-05
申请号：US12429491
申请日：2009-04-24
申请人： Ira G. Miller , John M. Pigott
发明人： Ira G. Miller , John M. Pigott
IPC分类号： H03K3/00
CPC分类号： H03K3/356113 , H02M1/08 , H02M3/1588 , H03K3/0375 , H03K17/6874 , H03K2217/0081 , Y02B70/1466
摘要： A driver circuit includes a first and a second voltage rail, a first pre-driver circuit, a power transistor, comparison circuitry which indicates when a voltage level of the first voltage rails is above or below a reference voltage level, a level shift circuit coupled between the first voltage rail and the second voltage rail which provides a level shifted output, a tapered buffer circuit coupled to the first voltage rail and to a first circuit node, wherein the tapered buffer circuit receives the level shifted output and provides a buffered output to a control electrode of the first pre-driver transistor, and a rail voltage adjusting circuit coupled between the first circuit node and the second voltage rail, which, in response to the comparison circuitry indicating that the voltage level of the first voltage rail is above the reference voltage level, adjusts a voltage level of the second voltage rail.
摘要翻译：驱动器电路包括第一和第二电压轨，第一预驱动器电路，功率晶体管，比较电路，其指示第一电压轨的电压电平何时高于或低于参考电压电平;电平移位电路耦合在提供电平移位输出的第一电压轨和第二电压轨之间，耦合到第一电压轨和第一电路节点的渐缩缓冲电路，其中锥形缓冲电路接收电平移位输出并提供缓冲输出所述第一预驱动晶体管的控制电极以及耦合在所述第一电路节点和所述第二电压轨之间的轨电压调整电路，所述轨电压调整电路响应于所述比较电路，指示所述第一电压轨的电压高于参考电压电平，调整第二电压轨的电压电平。

7. 发明申请

US20150004902A1 DIE-TO-DIE INDUCTIVE COMMUNICATION DEVICES AND METHODS 审中-公开
标题翻译： DIE-TO-DIE电感通信设备和方法
公开(公告)号：US20150004902A1
公开(公告)日：2015-01-01
申请号：US13930250
申请日：2013-06-28
申请人： John M. Pigott , Fred T. Brauchler , Darrel R. Frear , Vivek Gupta , Randall C. Gray , Norman L. Owens , Carl E. D'Acosta
发明人： John M. Pigott , Fred T. Brauchler , Darrel R. Frear , Vivek Gupta , Randall C. Gray , Norman L. Owens , Carl E. D'Acosta
IPC分类号： H04B5/00 , H01L49/02
CPC分类号： H04B5/0031 , H01F19/08 , H01L23/3107 , H01L23/48 , H01L23/49575 , H01L23/5227 , H01L24/05 , H01L24/13 , H01L24/16 , H01L24/27 , H01L24/29 , H01L24/32 , H01L24/48 , H01L24/73 , H01L24/92 , H01L28/10 , H01L2224/0401 , H01L2224/04042 , H01L2224/05553 , H01L2224/0557 , H01L2224/131 , H01L2224/16245 , H01L2224/27334 , H01L2224/29034 , H01L2224/2919 , H01L2224/32013 , H01L2224/32014 , H01L2224/32145 , H01L2224/32245 , H01L2224/33181 , H01L2224/48247 , H01L2224/4826 , H01L2224/48464 , H01L2224/73203 , H01L2224/73215 , H01L2224/73265 , H01L2224/92147 , H01L2224/92247 , H01L2924/00014 , H01L2924/10252 , H01L2924/10253 , H01L2924/10329 , H01L2924/1033 , H01L2924/1305 , H01L2924/13055 , H01L2924/14 , H01L2924/181 , H01L2924/19042 , H01L2924/19104 , H04B5/0093 , H01L2924/00012 , H01L2924/014 , H01L2924/00 , H01L2224/05552 , H01L2224/45099 , H01L2224/45015 , H01L2924/207
摘要： Embodiments of inductive communication devices include first and second galvanically isolated IC die. The first IC die has a first coil proximate to a first surface of the first IC die, and the second IC die has a second coil proximate to a first surface of the second IC die. The first and second IC die are arranged so that the first surfaces of the first and second IC die face each other, and the first coil and the second coil are aligned across a gap between the first and second IC die. One or more dielectric components are positioned within the gap directly between the first and second coils. During operation, a first signal is provided to the first coil, and the first coil converts the signal into a time-varying magnetic field. The magnetic field couples with the second coil, which produces a corresponding second signal.
摘要翻译：感应通信设备的实施例包括第一和第二电隔离IC芯片。第一IC管芯具有靠近第一IC管芯的第一表面的第一线圈，并且第二IC管芯具有靠近第二IC管芯的第一表面的第二线圈。第一IC芯片和第二IC芯片被布置成使得第一和第二IC芯片的第一表面彼此面对，并且第一线圈和第二线圈跨越第一和第二IC芯片之间的间隙排列。一个或多个电介质部件直接位于第一和第二线圈之间的间隙内。在操作期间，向第一线圈提供第一信号，并且第一线圈将该信号转换成时变磁场。磁场与第二线圈耦合，产生相应的第二信号。

8. 发明申请

US20100079126A1 DUAL-LOOP DC-TO-DC CONVERTER APPARATUS 有权
标题翻译：双环路DC-DC转换器装置
公开(公告)号：US20100079126A1
公开(公告)日：2010-04-01
申请号：US12242145
申请日：2008-09-30
申请人： John M. Pigott
发明人： John M. Pigott
IPC分类号： G05F1/565
CPC分类号： H02M3/156 , H02M2001/0016
摘要： A dual loop DC-to-DC converter is provided that includes a first control loop that maintains a DC output voltage (VOUT) less than or equal to a desired maximum value of the VOUT, a second control loop that operates simultaneously with the first control loop and maintains a DC input voltage (VIN) greater than or equal to a desired minimum value of the VIN, and a duty cycle selection module. The first control loop generates a first clock signal having a first duty cycle, and the second control loop generates a second clock signal having a second duty cycle. The duty cycle selection module continuously determines which one of the first duty cycle and the second duty cycle has a lower duty cycle value, and continuously generates a PWM output signal having a modulated duty cycle equal to the lower duty cycle value.
摘要翻译：提供一种双回路DC-DC转换器，其包括第一控制回路，其保持小于或等于VOUT的期望最大值的DC输出电压（VOUT）;与第一控制同时操作的第二控制回路并且保持大于或等于VIN的期望最小值的DC输入电压（VIN）和占空比选择模块。第一控制环路产生具有第一占空比的第一时钟信号，而第二控制环路产生具有第二占空比的第二时钟信号。占空比选择模块连续地确定第一占空比和第二占空比中的哪一个具有较低的占空比值，并连续产生具有等于较低占空比值的调制占空比的PWM输出信号。

9. 发明申请

US20080278125A1 APPARATUS FOR OPTIMIZING DIODE CONDUCTION TIME DURING A DEADTIME INTERVAL 有权
标题翻译：用于在死亡间隔期间优化二极管导通时间的装置
公开(公告)号：US20080278125A1
公开(公告)日：2008-11-13
申请号：US11747360
申请日：2007-05-11
申请人： John M. Pigott
发明人： John M. Pigott
IPC分类号： G05F1/40
CPC分类号： H02M3/1588 , H02M1/38 , Y02B70/1466
摘要： Deadtime optimization techniques and circuits are provided which implement closed loop feedback to reduce a duration of a deadtime interval by reducing a diode conduction time (DCT) to an optimized or minimized value. Information regarding DCT is fed back to continuously adjust the relative delay between a first driver path which drives a first transistor and a second driver path which drives a second transistor. For instance, information regarding DCT can be measured and stored, and then used to generate a control signal which continuously adjusts (e.g., increases or decreases) a variable delay associated with a delay element in one of the driver paths of one of the transistors. The delay is adjusted to a value which drives the DCT towards an optimum value. By continuously changing the relative delay between the first driver path and the second driver path, the DCT can be driven to an optimum value
摘要翻译：提供了死区优化技术和电路，其实现闭环反馈以通过将二极管导通时间（DCT）减小到优化或最小化的值来减少死区间隔的持续时间。反馈关于DCT的信息，以连续地调节驱动第一晶体管的第一驱动路径和驱动第二晶体管的第二驱动路径之间的相对延迟。例如，可以测量和存储关于DCT的信息，然后用于产生一个控制信号，该控制信号连续调整（例如，增加或减少）与其中一个晶体管之一的驱动器路径中的延迟元件相关联的可变延迟。将延迟调整为将DCT驱动到最佳值的值。通过连续地改变第一驱动路径和第二驱动路径之间的相对延迟，可以将DCT驱动到最佳值

10. 发明授权

US06861817B2 Method and apparatus for detecting a stall condition in a stepping motor 有权
标题翻译：用于检测步进电机失速状态的方法和装置
公开(公告)号：US06861817B2
公开(公告)日：2005-03-01
申请号：US10027514
申请日：2001-12-21
申请人： John M. Pigott , Thomas Jeffrey Reiter
发明人： John M. Pigott , Thomas Jeffrey Reiter
IPC分类号： H02P8/08 , G05B19/40
CPC分类号： H02P8/08
摘要： Stepped rotary motion is imparted to the rotor of a stepping motor by alternately driving at least first and second coils which interact with a plurality of magnetic poles on the rotor. When each of the coils transitions from a driven to a non-driven state, the continued motion of the rotor causes a back electro-motive force to be generated in the coil. The electro-motive forces produced by the coils are rectified, integrated, and then compared with a threshold to determine if a motor stall condition exists.
摘要翻译：通过交替地驱动与转子上的多个磁极相互作用的至少第一和第二线圈，将步进旋转运动赋予步进电动机的转子。当每个线圈从被驱动状态转变到非驱动状态时，转子的持续运动导致在线圈中产生反向电动力。由线圈产生的电动势被整流，积分，然后与阈值进行比较，以确定是否存在电动机失速状态。

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