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公开(公告)号：US20240340003A1
公开(公告)日：2024-10-10
申请号：US18519665
申请日：2023-11-27
发明人： Holger HAIPLIK , Peter TONGE
IPC分类号： H03K17/687
CPC分类号： H03K17/687
摘要： This application relates to methods and apparatus for switching control of semiconductor switches. In a switching circuit, a semiconductor switch is implemented as a composite switch having a plurality of switch elements, each having a respective gate electrode. A switch driver is configured to drive the gate electrodes of the switch elements to a first gate voltage over a duration of a first switch transition and is configured to enable drive of at least some of the gate electrodes of the plurality of semiconductor switch elements at different times in a temporal sequence during the first switch transition. The temporal sequence is configured to provide an average resistance of the composite switch over the duration of the first switch transition which is closer to a final composite switch resistance, compared to driving the gate electrodes of the switch elements at the same time as one another.
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公开(公告)号：US20240333127A1
公开(公告)日：2024-10-03
申请号：US18697813
申请日：2023-03-10
发明人： Siddharth MARU , Bryan MCCOY , Chanchal GUPTA , Rosario PAGANO
CPC分类号： H02M1/0032 , H02M3/1566 , H02M3/158
摘要： The controller for a system including a power converter may be configured to cause the system to operate in one of a low-power mode and the high-power mode based on power demand from a load at the output of the power converter and when in the low-power mode, monitor the output of the power converter to detect an occurrence of a load transient from the load and in response to detecting the occurrence of the load transient, transition from the low-power mode to the high-power mode via a transition mode to minimize undershoot and overshoot of the output voltage.
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公开(公告)号：US20240322817A1
公开(公告)日：2024-09-26
申请号：US18188053
申请日：2023-03-22
发明人： Ross C. MORGAN , Yongjie CHENG , Lingli ZHANG
IPC分类号： H03K17/687 , H03K17/06
CPC分类号： H03K17/6871 , H03K17/063 , H03K2217/0045
摘要： This application relates to methods and apparatus for driving a transducer connected between two output nodes in a bridge-tied-load configuration. A driver receives first and second supply voltages and has charge pumps that generate respective first and second boosted voltages. The driver is operable a first driver mode in which each output node is modulated between the first and second supply voltage; a second driver mode in which one output nodes is modulated between the first and second supply voltages and the other output node is modulated between either the first boosted voltage and the first supply voltage or between the second supply voltage and the second boosted voltage; and a third driver mode in which one of the output nodes is modulated between the first supply voltage and the first boosted voltage and the other output node is modulated between the second supply voltage and the second boosted voltage.
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公开(公告)号：US20240302322A1
公开(公告)日：2024-09-12
申请号：US18594434
申请日：2024-03-04
发明人： James WELLS , Gagan MIDHA , Gordon J. BATES , Sunil SAUNDERS
IPC分类号： G01N27/416
CPC分类号： G01N27/4163
摘要： Circuitry for processing a response from an electrochemical cell to a stimulus, the circuitry comprising: sense circuitry configured to measure the response of the electrochemical cell to the stimulus; and processing circuitry configured to: sample the measured response to obtain a plurality of samples; and output the plurality of samples, wherein the processing circuitry is operable in: a continuous sampling mode in which the processing circuitry is configured to periodically sample the measured response at a fixed sampling rate; a discontinuous sampling mode in which the processing circuitry is configured to periodically sample the measured response during macro periods separated by macro intervals during which sampling of the measured response is disabled.
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公开(公告)号：US20240269706A1
公开(公告)日：2024-08-15
申请号：US18644538
申请日：2024-04-24
发明人： John Paul LESSO , Toru IDO
IPC分类号： B06B1/02
CPC分类号： B06B1/0261 , B06B2201/55
摘要： The present disclosure relates to driver circuitry for driving a piezoelectric transducer. The circuitry comprises: a power supply; a reservoir capacitance; switch network circuitry; and control circuitry. The control circuitry is configured to control operation of the switch network circuitry so as to charge the reservoir capacitance from the power supply and to transfer charge between the reservoir capacitance and the piezoelectric transducer.
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公开(公告)号：US20240266953A1
公开(公告)日：2024-08-08
申请号：US18165571
申请日：2023-02-07
发明人： Seunguk YANG , SeHyung JEON , Sangjun LEE , Cheolhwan AN
CPC分类号： H02M3/07 , H02J7/007 , H02M1/0095 , H02J2207/20
摘要： A power converter integrated circuit may comprise a switch network comprising a plurality of switches; a first set of coupling nodes for coupling the switch network to a first flying capacitor; a second set of coupling nodes for coupling the switch network to a second flying capacitor; an output node for coupling the switch network to an output capacitor; and a third set of one or more coupling nodes for coupling the switch network to an inductor, wherein the power converter integrated circuit is operable in a first forward mode as a switched capacitor converter and in a second forward mode as an inductive converter, wherein in the first forward mode the switch network is operable to couple the first flying capacitor in series with the output capacitor in a first phase of operation, and to couple the first flying capacitor and the output capacitor in parallel in a second phase of operation; and in the second forward mode the switch network is operable to couple the first flying capacitor in series with the inductor and the output capacitor in a phase of operation and to couple the first flying capacitor in parallel with the output capacitor, via the inductor, in a subsequent phase of operation.
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公开(公告)号：US20240264112A1
公开(公告)日：2024-08-08
申请号：US18685979
申请日：2022-08-25
发明人： John Paul LESSO , Toru IDO
IPC分类号： G01N27/327 , G01R19/165
CPC分类号： G01N27/3273 , G01R19/165 , G01R19/16566
摘要： Circuitry for and methods of analyte measurement Circuitry for measuring a characteristic of an electrochemical cell, the circuitry comprising: a hysteretic comparator having a first comparator input, a second comparator input and a comparator output; a feedback path between the comparator output and the second comparator input configured to provide a feedback signal to the second comparator input; and a loop filter configured to apply filtering to the feedback path to generate the feedback signal, wherein the loop filter comprises the electrochemical cell.
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公开(公告)号：US20240251565A1
公开(公告)日：2024-07-25
申请号：US18600957
申请日：2024-03-11
发明人： John P. LESSO , James T. DEAS
CPC分类号： H10B61/10 , G06N3/02 , G11C11/165 , H10N50/10
摘要： There is described a two-terminal multi-level memristor element synthesised from binary memristors, which is configured to implement a variable resistance based on unary or binary code words. There is further described a circuit such as a synapse circuit implemented using a multi-level memristor element.
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公开(公告)号：US20240235388A1
公开(公告)日：2024-07-11
申请号：US18094126
申请日：2023-01-06
发明人： Seunguk YANG , Juyeong KIM , InKuk BAEK , SeHyung JEON
CPC分类号： H02M3/07 , H02M1/32 , H02J2207/20
摘要： Switched capacitor power converter circuitry configured to receive an input voltage and to output an output voltage, the switched capacitor power converter circuitry comprising: a switch network; a flying capacitor coupled to the switch network; and an output capacitor coupled to an output node of the switch network, wherein the switched capacitor power converter circuitry is operable in: a first mode in which the switch network operates at a fixed duty cycle; and a second mode in which the switch network operates at a variable duty cycle based on a predetermined flying capacitor charging threshold and a predetermined flying capacitor discharging threshold.
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公开(公告)号：US20240155948A1
公开(公告)日：2024-05-09
申请号：US18410837
申请日：2024-01-11
发明人： John P. LESSO , Anthony S. DOY
CPC分类号： H10N30/802 , B06B1/0253 , B06B2201/55
摘要： The present disclosure relates to circuitry for driving a piezoelectric transducer to generate an audio output. The circuitry comprises pre-processor circuitry configured to process an input audio signal to generate a processed signal; driver circuitry coupled to the pre-processor circuitry and configured to generate a drive signal, based on the processed signal, for driving the piezoelectric transducer; and processor circuitry configured to determine a resonant frequency of the piezoelectric transducer. The pre-processor circuitry is configured to process the input audio signal based on the determined resonant frequency so as to generate the processed signal.
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