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公开(公告)号：US20150256015A1
公开(公告)日：2015-09-10
申请号：US14576048
申请日：2014-12-18
摘要： A battery charger for charging a battery is disclosed. In one embodiment, the battery charger comprises an input for receiving a first voltage and for coupling to a positive terminal of the battery; a first transistor having a first gate, a first drain and a first source, wherein the first gate is for coupling to a charging signal for the battery and the first drain is coupled to the battery negative terminal and, the first transistor to cause energy to be transferred from the input into the battery when turned on; and a group of transistors coupled to the first transistor and the input to control when the first transistor is turned on, wherein the group of transistors comprises a second transistor having a second gate coupled to the input and coupled to a third transistor to turn off the third transistor after a delay occurs after the voltage on the input reaches a predetermined level, and further herein the third transistor causes the first transistor to turn on when the third transistor is turned off.
摘要翻译： 公开了一种用于对电池充电的电池充电器。 在一个实施例中，电池充电器包括用于接收第一电压并用于耦合到电池的正极端子的输入端; 第一晶体管，其具有第一栅极，第一漏极和第一源极，其中所述第一栅极用于耦合到用于所述电池的充电信号，并且所述第一漏极耦合到所述电池负极端子，所述第一晶体管使得能量 打开时将其从输入端转移到电池中; 以及耦合到所述第一晶体管和所述输入的一组晶体管，以在所述第一晶体管导通时控制，其中所述晶体管组包括具有耦合到所述输入并耦合到第三晶体管的第二栅极的第二晶体管， 第三晶体管在输入上的电压达到预定电平之后发生延迟，此外，当第三晶体管截止时，第三晶体管进一步导致第一晶体管导通。
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公开(公告)号：US10468917B2
公开(公告)日：2019-11-05
申请号：US14576048
申请日：2014-12-18
摘要： A battery charger for charging a battery is disclosed. In one embodiment, the battery charger comprises an input for receiving a first voltage and for coupling to a positive terminal of the battery; a first transistor having a first gate, a first drain and a first source, wherein the first gate is for coupling to a charging signal for the battery and the first drain is coupled to the battery negative terminal and, the first transistor to cause energy to be transferred from the input into the battery when turned on; and a group of transistors coupled to the first transistor and the input to control when the first transistor is turned on, wherein the group of transistors comprises a second transistor having a second gate coupled to the input and coupled to a third transistor to turn off the third transistor after a delay occurs after the voltage on the input reaches a predetermined level, and further herein the third transistor causes the first transistor to turn on when the third transistor is turned off.
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公开(公告)号：US10298071B2
公开(公告)日：2019-05-21
申请号：US14576043
申请日：2014-12-18
摘要： A DC-DC boost converter and apparatus including the same are disclosed. In one embodiment, the DC-DC converter comprises an input for receiving a first voltage at a first level, where the first voltage is negative; a transformer coupled to the input to convert the first voltage to a second voltage at a second level, where the second level is higher than the first level and the second voltage is positive; and an output connected to the transformer to output the second voltage.
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公开(公告)号：US20150256082A1
公开(公告)日：2015-09-10
申请号：US14576043
申请日：2014-12-18
摘要： A DC-DC boost converter and apparatus including the same are disclosed. In one embodiment, the DC-DC converter comprises an input for receiving a first voltage at a first level, where the first voltage is negative; a transformer coupled to the input to convert the first voltage to a second voltage at a second level, where the second level is higher than the first level and the second voltage is positive; and an output connected to the transformer to output the second voltage.
摘要翻译： 公开了一种DC-DC升压转换器及其装置。 在一个实施例中，DC-DC转换器包括用于接收第一电平的第一电压的输入，其中第一电压为负; 耦合到所述输入的变压器，以将所述第一电压转换成第二电平的第二电压，其中所述第二电平高于所述第一电平，所述第二电压为正; 以及连接到变压器以输出第二电压的输出。
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公开(公告)号：US09680533B2
公开(公告)日：2017-06-13
申请号：US14821200
申请日：2015-08-07
申请人： Kenneth Gudan , Jonathan J. Hull
发明人： Kenneth Gudan , Jonathan J. Hull
CPC分类号： H04B5/0062 , H03L7/0995 , H04B5/0031 , H04B7/0617
摘要： A backscatter modulation radio-frequency (RF) sensor and method for using the same are disclosed herein. In one embodiment, the RF sensor comprises: an energy harvesting unit operable to convert incident RF energy to direct current (DC); a storage unit operable to store recovered DC power; one or more sensors for sensing; a backscatter communication interface to backscatter energy to communicate one or more packets using a frequency-shift keying (FSK) modulator; and a microcontroller coupled to the energy harvesting and storage units, the one or more sensors, and the backscatter communicator, the microcontroller operable to cause the backscatter communication interface to communicate sensed data from at least one of the one or more sensors while powered by energy previously harvested and stored by the energy harvesting and storage unit.
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公开(公告)号：US20160196455A1
公开(公告)日：2016-07-07
申请号：US14821200
申请日：2015-08-07
申请人： Kenneth Gudan , Jonathan J. Hull
发明人： Kenneth Gudan , Jonathan J. Hull
CPC分类号： H04B5/0062 , H03L7/0995 , H04B5/0031 , H04B7/0617
摘要： A backscatter modulation radio-frequency (RF) sensor and method for using the same are disclosed herein. In one embodiment, the RF sensor comprises: an energy harvesting unit operable to convert incident RF energy to direct current (DC); a storage unit operable to store recovered DC power; one or more sensors for sensing; a backscatter communication interface to backscatter energy to communicate one or more packets using a frequency-shift keying (FSK) modulator; and a microcontroller coupled to the energy harvesting and storage units, the one or more sensors, and the backscatter communicator, the microcontroller operable to cause the backscatter communication interface to communicate sensed data from at least one of the one or more sensors while powered by energy previously harvested and stored by the energy harvesting and storage unit.
摘要翻译： 本文公开了一种反向散射调制射频（RF）传感器及其使用方法。 在一个实施例中，RF传感器包括：能量收集单元，其可操作以将入射的RF能量转换为直流电（DC）; 存储单元，用于存储恢复的DC电力; 一个或多个传感器用于感测; 反向散射通信接口，用于使用频移键控（FSK）调制器反向散射能量以传送一个或多个分组; 以及耦合到所述能量收集和存储单元，所述一个或多个传感器和所述后向散射通信器的微控制器，所述微控制器可操作以使得所述后向散射通信接口在来自所述一个或多个传感器中的至少一个传感器的同时由能量供电 以前收获和储存的能量收集和储存单元。
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公开(公告)号：US09245159B2
公开(公告)日：2016-01-26
申请号：US13786343
申请日：2013-03-05
CPC分类号： G06K7/10158 , G06K7/10207 , G06K19/071 , G06K19/0723 , H04W52/0229 , H04W52/0245 , H04W52/0274 , H04W88/10 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/166
摘要： A method, system and tag for low power radio frequency communication is described. In one embodiment, the RF tag comprises: an access point comprising: a first antenna; a first radio coupled to the first antenna; a central processing unit coupled to the first radio; a backscatter adapter coupled to the access point via a wired communication interface, the backscatter adapter comprising a backscatter radio and a second antenna coupled to the backscatter radio for use in communicating with an RF tag in the network via backscatter.
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公开(公告)号：US20140062672A1
公开(公告)日：2014-03-06
申请号：US13786342
申请日：2013-03-05
IPC分类号： G06K19/07
CPC分类号： G06K19/0723 , G06K19/0715 , Y02D70/10
摘要： A method, system and tag for low power radio frequency communication is described. In one embodiment, the RF tag comprises: an access point coupled to provide access to a network; an RF tag comprising an energy harvesting unit operable to convert incident RF energy to direct current (DC); a storage unit operable to store recovered DC power; a passive wakeup pattern detector operable to generate an interrupt in response to detecting a set of one or more subcarriers; one or more sensors for sensing; a communication mechanism; and a microcontroller coupled to the energy harvesting and storage units, the one or more sensors, and the backscatter communicator, the microcontroller operable to wake up from a sleep state in response to the interrupt and cause the communication mechanism to exchange data wirelessly with another while powered by energy previously harvested and stored by the energy harvesting and storage unit.
摘要翻译： 描述了用于低功率射频通信的方法，系统和标签。 在一个实施例中，RF标签包括：接入点，用于提供对网络的访问; RF标签，其包括可操作以将入射的RF能量转换为直流（DC）的能量收集单元; 存储单元，用于存储恢复的DC电力; 被动唤醒模式检测器，用于响应于检测到一个或多个子载波的集合而产生中断; 一个或多个传感器用于感测; 沟通机制; 以及耦合到所述能量收集和存储单元，所述一个或多个传感器和所述后向散射通信器的微控制器，所述微控制器可操作以响应于所述中断从休眠状态唤醒，并使所述通信机制与另一个无线地交换数据 由能量收集和存储单元先前收获和储存的能量提供动力。
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9.发明申请公开(公告)号：US20130234536A1
公开(公告)日：2013-09-12
申请号：US13415560
申请日：2012-03-08
IPC分类号： H02J17/00
摘要： A method and apparatus is disclosed herein for controlling radio-frequency (RF) energy for wireless devices. In one embodiment, the method comprises determining to increase radio-frequency (RF) energy available to power a wireless tag and controlling the RF energy delivered to the wireless tag to provide tag energy, using one or more of: a) increasing transmission RF power of one or more wireless communication devices, b) increasing a duty cycle associated with wireless transmissions of one or more wireless communication devices, and c) decreasing path loss of the power to the wireless tag.
摘要翻译： 本文公开了一种用于控制无线设备的射频（RF）能量的方法和装置。 在一个实施例中，该方法包括确定增加可用于为无线标签供电的射频（RF）能量和控制传送到无线标签的RF能量以提供标签能量，使用以下中的一个或多个：a）增加发射RF功率 一个或多个无线通信设备，b）增加与一个或多个无线通信设备的无线传输相关联的占空比，以及c）降低无线标签的功率的路径损耗。
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公开(公告)号：US20140085051A1
公开(公告)日：2014-03-27
申请号：US13786635
申请日：2013-03-06
IPC分类号： G06K7/10
CPC分类号： G06K7/10158 , G06K7/10207 , G06K19/071 , G06K19/0723 , H04W52/0229 , H04W52/0245 , H04W52/0274 , H04W88/10 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/166
摘要： A method, system and tag for low power radio frequency communication is described. In one embodiment, the RF tag comprises: an access point comprising: a first antenna; a first radio coupled to the first antenna; a central processing unit coupled to the first radio; a backscatter adapter coupled to the access point via a wired communication interface, the backscatter adapter comprising a backscatter radio and a second antenna coupled to the backscatter radio for use in communicating with an RF tag in the network via backscatter.
摘要翻译： 描述了用于低功率射频通信的方法，系统和标签。 在一个实施例中，RF标签包括：接入点，包括：第一天线; 耦合到所述第一天线的第一无线电; 耦合到所述第一无线电的中央处理单元; 反向散射适配器，经由有线通信接口耦合到接入点，所述反向散射适配器包括反向散射无线电和耦合到所述反向散射无线电的第二天线，用于通过后向散射与所述网络中的RF标签进行通信。
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