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21.发明授权公开(公告)号：US09263942B2
公开(公告)日：2016-02-16
申请号：US14036458
申请日：2013-09-25
CPC分类号： H02M3/155 , F03G5/06 , H01F27/40 , H02M1/32 , H02M1/4208 , H02M3/158 , H02M7/06 , H02M7/068 , H02M7/217 , Y02B70/126
摘要： An energy-scavenging interface receives an input signal from a transducer and supplies an output signal to a load. A switch is connected between the transducer and a reference node, and a diode is connected between the transducer and the load. A control circuit closes the switch for a time interval to permit energy storage in the transducer. A scale copy of a peak value of stored electric current is obtained. The switch is opened when the time interval elapses and the stored energy exceeds a threshold. The stored energy is then released to supply the load through the diode. The switch remains open as long as the value of current in the output signal exceeds the value of the scaled copy of the peak value.
摘要翻译： 能量清除界面接收来自换能器的输入信号并将输出信号提供给负载。 开关连接在传感器和参考节点之间，二极管连接在传感器和负载之间。 控制电路将开关闭合一段时间间隔，以允许传感器中的能量存储。 获得存储电流的峰值的比例拷贝。 当经过时间间隔并且存储的能量超过阈值时，开关被打开。 然后释放存储的能量以通过二极管提供负载。 只要输出信号中的电流值超过峰值的缩放副本的值，开关就保持打开。
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22.发明申请ENERGY HARVESTING INTERFACE WITH IMPROVED IMPEDANCE MATCHING, METHOD FOR OPERATING THE ENERGY HARVESTING INTERFACE, AND ENERGY HARVESTING SYSTEM USING THE ENERGY HARVESTING INTERFACE 有权具有改进的阻抗匹配的能量采集接口，操作能量采集接口的方法和使用能量采集接口的能量采集系统公开(公告)号：US20150234416A1
公开(公告)日：2015-08-20
申请号：US14616119
申请日：2015-02-06
IPC分类号： G05F5/00
摘要： An energy harvesting interface receives an electrical signal from an inductive transducer and supplies a supply signal. The interface includes an input branch with a first switch and a second switch connected together in series between a first input terminal and an output terminal. The interface further includes a third switch and a fourth switch connected together in series between a second input terminal and the output terminal. A first electrical-signal-detecting device, coupled across the second switch, detects a first threshold value of an electric storage current in the inductor of the transducer. A second electrical-signal-detecting device, coupled across the fourth switch, detects whether the electric supply current that flows through the fourth switch reaches a second threshold value lower than the first threshold value. The second threshold is derived from the electric storage current.
摘要翻译： 能量采集接口从感应传感器接收电信号并提供电源信号。 接口包括具有第一开关和第二开关的输入分支，第一开关和第二开关串联连接在第一输入端子和输出端子之间。 该接口还包括串联连接在第二输入端和输出端之间的第三开关和第四开关。 耦合在第二开关上的第一电信号检测装置检测换能器的电感器中的蓄电电流的第一阈值。 耦合在第四开关上的第二电信号检测装置检测流经第四开关的电源电流是否达到低于第一阈值的第二阈值。 第二阈值来自蓄电流。
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公开(公告)号：US11626799B2
公开(公告)日：2023-04-11
申请号：US17393243
申请日：2021-08-03
摘要： A converter circuit includes first and second electronic switches coupled at an intermediate node, with an inductor coupled between the intermediate node and an output node. Switching drive control circuitry causes the first and the second electronic switch to switch between a conductive state and a non-conductive state. The drive control circuitry includes a first feedback signal path to control switching of the first and the second electronic switch as a function of the difference between a feedback signal indicative of the signal at the output node and a reference value. A second feedback signal path includes a low-pass filter coupled to the output node and configured to provide a low-pass filtered feedback signal resulting from low-pass filtering of the output signal. The second feedback signal path compensates the feedback signal as a function of the difference between the low-pass filtered feedback signal and a respective reference value.
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公开(公告)号：US11094807B2
公开(公告)日：2021-08-17
申请号：US16561670
申请日：2019-09-05
IPC分类号： H01L29/739 , H02M3/158 , H02M1/32 , H02M1/088
摘要： A power MOS stage includes a first power MOS device and a second power MOS devices connected in parallel between a first node and a second node, the first power MOS device having a first voltage rating and the second power MOS device having a second voltage rating that is lower than the first voltage rating. A driver circuit is configured to drive control nodes of the first and second power MOS devices in a sequential manner when actuating the power MOS stage by actuating the first power MOS device before actuating the second power MOS device. The control nodes of the first and second power MOS devices are further driven in a sequential manner when deactuating the power MOS stage by deactuating the second power MOS device before deactuating the first power MOS device.
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公开(公告)号：US20200028432A1
公开(公告)日：2020-01-23
申请号：US16504885
申请日：2019-07-08
摘要： A circuit includes an input node configured to receive an input reference signal. An output node is configured to provide a replica of the input reference signal with a respective scaling ratio to the input reference signal at the input node. A digital-to-analog converter has a reference input configured to receive the input reference signal from the input node, a digital input configured to receive a digital input signal having a digital signal value, and a digital-to-analog converter output configured to provide an output signal from the digital-to-analog converter resulting from conversion to analog of the digital input signal. The output node of the circuit is configured to sense the output signal from the digital-to-analog converter and to provide the replica of the input reference signal at the output node.
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公开(公告)号：US10439569B2
公开(公告)日：2019-10-08
申请号：US15984942
申请日：2018-05-21
摘要： A switching amplifier, such as a Class D amplifier, includes a current sensing circuit. The current sensing circuit is formed by replica loop circuits that are selectively coupled to corresponding output inverter stages of the switching amplifier. The replica loop circuits operated to produce respective replica currents of the output currents generated by the output inverter stages. A sensing circuitry is coupled to receive the replica currents from the replica loop circuits and operates to produce an output sensing signal as a function of the respective replica currents.
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公开(公告)号：US10118819B2
公开(公告)日：2018-11-06
申请号：US15410394
申请日：2017-01-19
摘要： A system for driving a MEMS array having a number of MEMS structures, each defining at least one row terminal and one column terminal, envisages: a number of row driving stages, each for supplying row-biasing signals to the row terminal of each MEMS structure associated to a respective row; a number of column driving stages, each for supplying column-biasing signals to the column terminal of each MEMS structure associated to a respective column; and a control unit, for supplying row-address signals to the row driving stages for generation of the row-biasing signals and for supplying column-address signals to the column driving stages for generation of the column-biasing signals. The control unit further supplies row-deactivation and/or column-deactivation signals to one or more of the row and column driving stages, for causing deactivation of one or more rows and/or columns of the MEMS array.
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28.发明申请ENHANCED-EFFICIENCY ENERGY-SCAVENGING INTERFACE, METHOD FOR OPERATING THE ENERGY-SCAVENGING INTERFACE, AND ENERGY-SCAVENGING SYSTEM COMPRISING THE ENERGY-SCAVENGING INTERFACE 审中-公开提高能源消耗接口，操作能量消耗接口的方法，以及包含能量消耗接口的能量扫描系统公开(公告)号：US20160344235A1
公开(公告)日：2016-11-24
申请号：US15226473
申请日：2016-08-02
CPC分类号： H02J15/00 , H02M3/1588 , H02M7/04 , H02M7/217 , H02M2001/0009 , H02N2/181 , Y02B70/1466
摘要： An energy-scavenging interface includes first and second switches connected in series between an input and reference, and third and fourth switches connected in series between the input and an output. A control circuit closes the first and second switches and opens the third switch for a first time interval to store charge in a storage element. A scaled copy of a peak value of the charging current is obtained. The control circuit then opens the first switch and closes the third and fourth switches to generate an output signal as long as the value in current of the output signal is higher than the value of said scaled copy of the peak value.
摘要翻译： 能量清除界面包括串联连接在输入和参考之间的第一和第二开关以及串联连接在输入和输出之间的第三和第四开关。 控制电路关闭第一和第二开关并打开第一开关第一时间间隔以将电荷存储在存储元件中。 获得充电电流的峰值的缩放副本。 只要输出信号的电流值高于峰值的缩放副本的值，控制电路就打开第一开关并闭合第三和第四开关以产生输出信号。
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29.发明授权Enhanced efficiency energy-scavenging interface, method for operating the energy-scavenging interface, and energy-scavenging system comprising the energy-scavenging interface 有权提高效率能量清除界面，操作能量清除界面的方法，以及包括能量清除界面的能量清除系统公开(公告)号：US09461504B2
公开(公告)日：2016-10-04
申请号：US14036751
申请日：2013-09-25
CPC分类号： H02J15/00 , H02M3/1588 , H02M7/04 , H02M7/217 , H02M2001/0009 , H02N2/181 , Y02B70/1466
摘要： An energy-scavenging interface includes first and second switches connected in series between an input and reference, and third and fourth switches connected in series between the input and an output. A control circuit closes the first and second switches and opens the third switch for a first time interval to store charge in a storage element. A scaled copy of a peak value of the charging current is obtained. The control circuit then opens the first switch and closes the third and fourth switches to generate an output signal as long as the value in current of the output signal is higher than the value of said scaled copy of the peak value.
摘要翻译： 能量清除界面包括在输入和参考之间串联连接的第一和第二开关以及串联连接在输入和输出之间的第三和第四开关。 控制电路关闭第一和第二开关并打开第一开关第一时间间隔以将电荷存储在存储元件中。 获得充电电流的峰值的缩放副本。 只要输出信号的电流值高于峰值的缩放副本的值，控制电路就打开第一开关并闭合第三和第四开关以产生输出信号。
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30.发明申请公开(公告)号：US20150260542A1
公开(公告)日：2015-09-17
申请号：US14638392
申请日：2015-03-04
CPC分类号： G01C22/006 , F03G5/06 , F03G7/08 , G01D5/12 , H02J50/00
摘要： A step-detection device for detecting the steps taken by a user (for counting) includes a transducer that generates an electrical transduction signal as a function of step mechanical activity. An energy scavenging system, coupled to the transducer, generates electrical energy starting from the mechanical activity in order to supply an output supply signal in response to the electrical transduction signal. A voltage-regulator generates a regulated supply signal from the output supply signal. A transmission stage, supplied by the voltage-regulating stage, initiates a wireless transmission indicative of step detection, that wireless transmission causing an increment of a step count at a remote location. The transmission stage makes the wireless transmission when the regulated supply signal exceeds a first threshold. Completion of the wireless transmission is indicative of the occurrence of a step.
摘要翻译： 用于检测用户步骤（用于计数）的步进检测装置包括产生作为步进机械活动的函数的电转换信号的换能器。 耦合到换能器的能量清除系统从机械活动开始产生电能，以响应于电转换信号提供输出电源信号。 电压调节器从输出电源信号产生稳定的电源信号。 由电压调节级提供的发送级发起指示步进检测的无线传输，该无线传输导致远程位置的步数增加。 当调节电源信号超过第一阈值时，发送级进行无线传输。 无线传输的完成表示步骤的发生。
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