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公开(公告)号：US20220370669A1
公开(公告)日：2022-11-24
申请号：US17328435
申请日：2021-05-24
摘要： A system to sanitize a surface includes an emitter. The emitter of the system to sanitize the surface includes: a light source configured to generate light at a sanitizing wavelength; a receiver configured to receive a wireless signal; and a processing circuit for the emitter configured to turn the light source on, turn the light source off, and adjust an intensity of light generated by the light source depending on the wireless signal. The system to sanitize the surface further includes a sensor. The sensor of the system to sanitize the surface includes: a photoelectric transducer configured to convert light at the sanitizing wavelength to a current; and a processing circuit for the sensor powered by the current and in communication with a transmitter to transmit the wireless signal, the processing circuit for the sensor being configured to control emission of the wireless signal depending on a power level supplied by the current.
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公开(公告)号：US20130265017A1
公开(公告)日：2013-10-10
申请号：US13828535
申请日：2013-03-14
CPC分类号： G05F1/46 , H05B33/0812 , H05B33/0821 , Y02B20/343 , Y02B20/345
摘要： An embodiment of a driving device is proposed for supplying at least one regulated global output current to a load. The driving device includes programming means for programming a value of the global output current within a global current range. Reference means are provided for supplying a reference voltage, which has a value corresponding to the value of the global output current. Conversion means are then used for converting the reference voltage into the global output current. The conversion means may further include a plurality of conversion units for corresponding partial current ranges, which partition the global current range.
摘要翻译： 提出了一种驱动装置的实施例，用于向负载提供至少一个调节的全局输出电流。 驱动装置包括用于在全局电流范围内编程全局输出电流的值的编程装置。 提供用于提供参考电压的参考装置，其具有对应于全局输出电流的值的值。 然后使用转换装置将参考电压转换成全局输出电流。 转换装置还可以包括用于对应的局部电流范围的多个转换单元，其分割全局电流范围。
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公开(公告)号：US11862988B2
公开(公告)日：2024-01-02
申请号：US17109345
申请日：2020-12-02
CPC分类号： H02J50/27 , H02J50/001 , H04B5/0037
摘要： A first RF-to-DC circuit receives a radiofrequency signal and produces a first converted signal delivered to an energy storage circuit. A second RF-to-DC circuit, which is a down-scaled replica of the first RF-to-DC circuit, produces a second converted signal from the radiofrequency signal that is indicative of an open-circuit voltage of the first RF-to-DC circuit. The first RF-to-DC section includes N sub-stages, with a sub-set of sub-stages being selectively activatable. A window comparison of the second converted signal generates a first signal and a second signal indicative of whether the second converted signal is within a range of values proportional to a voltage reference signal. The sub-set of sub-stages is selectively deactivated, respectively activated, when the performed window comparison has a first result, respectively, a second result.
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公开(公告)号：US11444484B2
公开(公告)日：2022-09-13
申请号：US16815770
申请日：2020-03-11
发明人： Roberto La Rosa
摘要： An energy-harvesting generator provides energy for storage in a capacitor. A sensing circuit senses a voltage across the capacitor and generates an activation signal as a function of the sensed voltage. The activation signal switches from a first value to a second value when the sensed voltage reaches an upper threshold and switches from the second value to the first value when the sensed voltage reaches a lower threshold. A signal transmitter powered by stored energy in the capacitor responds to the activation signal being switched to the second value by activating and transmitting a transmission signal. The signal transmitter further responds to the activation signal being switched to the first value by discontinuing transmission of the transmission signal and deactivating. A duration of time elapsing between de-activation and activation of the transmitter is indicative of an amount of energy harvested by the energy-harvesting electric generator.
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公开(公告)号：US11632029B2
公开(公告)日：2023-04-18
申请号：US16802741
申请日：2020-02-27
发明人： Roberto La Rosa , Salvatore Baglio , Carlo Trigona
摘要： An energy harvester includes an elongated tubular casing extending around a longitudinal axis between opposed first and second ends. A body is arranged in the casing. A helical electrical winding is wound around the longitudinal axis. The body is arranged to move along the longitudinal axis with alternate motion away from the first end towards the second end and away from the second end towards the first end. As a result of this alternate motion, an electromotive force is produced in the at least one helical electrical winding. Furthermore, at least one of the first and second ends includes a piezoelectric transducer that is configured to co-operate in a kinetic energy transfer relationship with the at least one body to generate an electric voltage as a result of the at least one body reaching, in the alternate motion, an end-of-travel position towards the piezoelectric transducer.
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公开(公告)号：US09007044B2
公开(公告)日：2015-04-14
申请号：US13828535
申请日：2013-03-14
CPC分类号： G05F1/46 , H05B33/0812 , H05B33/0821 , Y02B20/343 , Y02B20/345
摘要： An embodiment of a driving device is proposed for supplying at least one regulated global output current to a load. The driving device includes programming means for programming a value of the global output current within a global current range. Reference means are provided for supplying a reference voltage, which has a value corresponding to the value of the global output current. Conversion means are then used for converting the reference voltage into the global output current. The conversion means may further include a plurality of conversion units for corresponding partial current ranges, which partition the global current range.
摘要翻译： 提出了一种驱动装置的实施例，用于向负载提供至少一个调节的全局输出电流。 驱动装置包括用于在全局电流范围内编程全局输出电流的值的编程装置。 提供用于提供参考电压的参考装置，其具有对应于全局输出电流的值的值。 然后使用转换装置将参考电压转换成全局输出电流。 转换装置还可以包括用于对应的局部电流范围的多个转换单元，其分割全局电流范围。
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公开(公告)号：US11169556B2
公开(公告)日：2021-11-09
申请号：US16283067
申请日：2019-02-22
发明人： Roberto La Rosa
摘要： A first generator produces a first signal that is supplied to an energy storage circuit. Energy transfer circuitry coupled to the energy storage circuit transfers energy stored in the energy storage circuit to an output node. A driver circuit coupled to the energy transfer circuitry switches the energy transfer circuitry between a state where energy from the first signal is stored in the energy storage circuit and a state where energy stored in the energy storage circuit section is delivered to the output node. A voltage at the energy storage circuit varies between an upper value and a lower value around a voltage setting point. A second generator, which is a scaled-down replica of the first generator, produces a second signal that is indicative of an open-circuit voltage of the first generator. The driver circuit uses the second signal to set the voltage setting point.
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公开(公告)号：US09118250B2
公开(公告)日：2015-08-25
申请号：US13832687
申请日：2013-03-15
CPC分类号： H02M3/33507 , H02J9/005 , H02M1/36 , H02M2001/0032 , Y02B70/16
摘要： A power supply circuit for an electrical appliance, including a turning-on stage configured for determining a transition from a turned-off state, in which the power supply circuit is off and does not supply electric power, to a turned-on state of the power supply circuit. The turning-on stage includes a transducer of the remote-control type configured for triggering the transition in response to the reception of a wireless signal. In some embodiments, operating power is transmitted from a remote controller to a control circuit of the electronic equipment, such that the electronic equipment can be turned on remotely but draws zero standby power.
摘要翻译： 一种用于电器的电源电路，包括导通电路，其被配置为用于确定电源电路断开并且不提供电力的关闭状态的转变到所述电源电路的导通状态 电源电路。 该接通级包括响应于无线信号的接收而触发转换的远程控制类型的换能器。 在一些实施例中，操作功率从遥控器传送到电子设备的控制电路，使得电子设备可以远程打开，但是获得零待机功率。
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公开(公告)号：US11146104B2
公开(公告)日：2021-10-12
申请号：US16862850
申请日：2020-04-30
摘要： A radiofrequency-powered device such as a wireless passive sensor node, for instance, comprises a radiofrequency energy harvesting circuit configured to be coupled to an antenna to harvest radiofrequency energy captured by the antenna from a radiofrequency signal. The radiofrequency energy harvesting circuit is configured to be coupled to an energy storage component to store therein energy harvested via the radiofrequency energy harvesting circuit. The device comprises user circuitry configured to be supplied with energy harvested via the radiofrequency energy harvesting circuit and to operate in accordance with one of a plurality of configurations as a function of configuration data supplied thereto. A receiver circuit coupled to the radiofrequency energy harvesting circuit is configured to receive a configuration data signal modulating the radiofrequency signal and supply to the user circuitry configuration data extracted from the configuration data signal received.
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公开(公告)号：US11056914B2
公开(公告)日：2021-07-06
申请号：US16849370
申请日：2020-04-15
IPC分类号： H01F27/42 , H01F37/00 , H01F38/00 , H02J50/00 , H02J50/20 , H02J50/40 , H02J7/00 , H02J7/34 , H02J7/35
摘要： A first Radio-Frequency-to-Direct-Current (RF2DC) transducer receives a first signal from a sensing antenna and generates energy stored by an energy storage circuit. An energy transfer circuit is controllably switched between an energy storage state where energy is stored in the energy storage state and an energy transfer state where stored energy is transferred to a load. The voltage at the energy storage circuit is alternatively variable between an upper value and a lower value around a voltage setting point. A second RF2DC transducer, which is a down-scaled replica of the first RF2DC transducer, produces a second signal indicative of an open-circuit voltage of the first RF2DC transducer. The voltage setting point is set as a function of the second signal indicative of the open-circuit voltage of the first RF2DC transducer.
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