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公开(公告)号：US11372441B2
公开(公告)日：2022-06-28
申请号：US16521217
申请日：2019-07-24
摘要： A method of distributing clock signals includes receiving a plurality of clock signals into a corresponding plurality of processing blocks; determining frequency offset data between a first clock signal of the plurality of clock signals and each of the other clock signals of the plurality of clock signals; periodically determining phase offset data between the first clock signal and the other clock signals; and transmitting the first clock signal, the frequency offset data, and the phase offset data on a pulse-width modulated clock signal. The method includes receiving a modulated clock signal, the modulated clock signal include a carrier clock signal, a frequency offset data, and a phase offset data on a pulse-width modulated clock signal; and recovering a plurality of clock signals based on the first clock signal, the frequency offset data, and the phase offset data.
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公开(公告)号：US11271566B2
公开(公告)日：2022-03-08
申请号：US16220399
申请日：2018-12-14
发明人： Victor Korol , Roberto Aparicio Joo
IPC分类号： H01L21/8252 , H03K19/094 , H01L23/31 , H01L23/532 , H02P9/30
摘要： An apparatus includes a device comprising a semiconductor junction configured to generate a reference voltage, a voltage divider circuit, a comparator circuit, and a first output circuit. The voltage divider circuit may be configured to generate a first predetermined threshold voltage in response to the reference voltage. The comparator circuit may be configured to generate a first intermediate signal in response to a comparison of the first predetermined threshold voltage and an input signal. The first output circuit may be configured to generate a first output signal in response to the first intermediate signal.
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公开(公告)号：US11211829B2
公开(公告)日：2021-12-28
申请号：US16371887
申请日：2019-04-01
发明人： Jiangjian Huang , Feng Zhou , Zhitong Guo , Rui Liu
摘要： Embodiments described herein a method for controlling operating frequency for a wireless power charging system. Specifically, a transmitter coil at a wireless power transmitter is driven under an operating frequency and an input voltage. Deadtime information at the wireless power receiver is received, from a wireless power receiver having a receiver coil that receives wireless power from the transmitter coil. A microcontroller then determines, based on the received deadtime information or the operating frequency, whether the operating frequency deviates from a target operating frequency range. Based on the determination, one or both of the operating frequency or the input voltage are adjusted thereby causing the operating frequency to fall within the target operating frequency range.
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公开(公告)号：US11171501B2
公开(公告)日：2021-11-09
申请号：US16368788
申请日：2019-03-28
发明人： Siqiang Fan , Sercan Ipek , Eric Huang , Turev Acar
摘要： Embodiments described herein provides a battery charging circuit that boosts an input current and feeds the boosted input current to a battery for fast charging. Specifically, the battery charging circuit includes a low dropout regulator (LDO) for providing a voltage, a switch mode charger, coupled between the LDO and a battery, and a capacitor divider, coupled between the LDO and the battery, in parallel to the switch mode charger, for dividing the voltage outputted from the LDO by a factor.
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公开(公告)号：US11171418B2
公开(公告)日：2021-11-09
申请号：US16267627
申请日：2019-02-05
发明人： Samet Zihir , Tumay Kanar
摘要： An apparatus includes a phased array antenna panel and one or more dual-polarization beam former circuits mounted on the phased array antenna panel. The phased array antenna panel generally comprises a plurality of dual-polarization antenna elements. The plurality of dual-polarization antenna elements are generally arranged in one or more groups. Each dual-polarization beam former circuit may be coupled to a respective group of the dual-polarization antenna elements. Each dual-polarization beam former circuit generally comprises a plurality of transceiver channels. Each transceiver channel generally comprises a horizontal channel and a vertical channel. Each dual-polarization beam former circuit provides polarization rotation through bias current control in each of the vertical and horizontal channels.
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公开(公告)号：US11043753B2
公开(公告)日：2021-06-22
申请号：US16132877
申请日：2018-09-17
发明人： Samet Zihir , Tumay Kanar
IPC分类号： H01Q21/22 , H01Q21/24 , H01Q3/28 , H03F3/45 , H04B7/06 , H01Q21/06 , H01Q3/40 , H03F3/195 , H03F3/24 , H04B1/401 , H01Q3/36 , H04B1/44 , H01Q1/26 , H01Q3/46 , H01Q21/00 , H01Q21/20
摘要： An apparatus includes a phased array antenna panel and one or more beam former circuits mounted on the phased array antenna panel. The phased array antenna panel generally comprises a plurality of antenna elements. The plurality of antenna elements are generally arranged in one or more groups. Each beam former circuit may be coupled to a respective group of the antenna elements. Each beam former circuit generally comprises a plurality of transceiver channels. Each transceiver channel generally comprises a power amplifier circuit configured, when operating in a transmit mode, to drive a respective one of the antenna elements. The power amplifier circuit generally comprises separate bias and voltage supply inputs providing additional power control.
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公开(公告)号：US20210096025A1
公开(公告)日：2021-04-01
申请号：US16584433
申请日：2019-09-26
发明人： Dan ALLEN , Viresh PATEL
摘要： In some embodiments, a spectrometer is presented. In accordance with some embodiments, the spectrometer includes an optical sensor array, the optical sensor array including a substrate and an array of pixels formed on the substrate; a spectral filter array formed over the pixels of the optical sensor array, the spectral filter array filtering incident light such that each pixel receives light of a spectral transmission profile associated with the pixel; a transparent spacer formed over the spectral filter array; and an opaque mask having input apertures allowing light through the transparent spacer and onto a portion of the spectral filter array. The spectrometer can be formed from the optical sensor array using a combination of photolithographic techniques and bonding of certain layers.
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公开(公告)号：US10958154B2
公开(公告)日：2021-03-23
申请号：US16025779
申请日：2018-07-02
发明人： Rui Liu , Gustavo J. Mehas , Lijie Zhao
摘要： In accordance with aspects of the present invention, a wireless power circuit is presented. In some embodiments, the wireless power circuit includes one or more high-side transistors; one or more low-side transistors coupled in series with the one or more high-side transistors, wherein the one or more low-side transistors can be controlled as current sources.
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9.发明授权公开(公告)号：US10804858B2
公开(公告)日：2020-10-13
申请号：US16258145
申请日：2019-01-25
发明人： Samet Zihir , Himanshu Khatri , Tumay Kanar
摘要： An apparatus comprises an amplifier circuit and a bias circuit. The bias circuit is generally configured to dynamically adjust a bias voltage reference at a bias node connected to one or more input transistors of the amplifier circuit to maintain a low baseband impedance.
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公开(公告)号：US10804750B2
公开(公告)日：2020-10-13
申请号：US15998784
申请日：2018-08-16
发明人： Rui Liu , Zhitong Guo , Haiwen Jiang
摘要： A method of measuring a Q-factor in a wireless power transmitter includes charging a capacitor in a LC tank circuit that includes a transmission coil to a voltage; starting a Q-factor determining by coupling the LC tank circuit to ground to form a free-oscillating circuit; monitoring the voltage across the capacitor as a function of time as the LC tank circuit oscillates; and determining the resonant frequency and the Q-factor from monitoring the voltage.
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