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公开(公告)号：US20240322834A1
公开(公告)日：2024-09-26
申请号：US18454435
申请日：2023-08-23
Inventor： John P. LESSO , Ivan PERRY , Salvatore CAPORALE , Gagan MIDHA , James WELLS
CPC classification number: H03M1/1009 , H01M6/02 , H01M6/5044 , H03M1/1071
Abstract: Circuitry for processing an analyte signal obtained from an electrochemical cell, the circuitry comprising: measurement circuitry having a first measurement input coupled to a first electrode of the electrochemical cell, the measurement circuitry configured to convert the analyte signal at the first measurement input to a first analog output signal; an analog-to-digital converter (ADC) having an first ADC input for receiving the first analog output signal, the ADC configured to convert the first analog output signal to a first digital output signal at an ADC output; compensation circuitry configured in a measurement mode to: apply a first compensation to the first digital output signal to obtain a first compensated digital output signal, the first compensation to compensate for non-linearity in the ADC; and apply a second compensation to the first compensated digital output signal to obtain a second compensated digital output signal, the second compensation to compensate for non-linearity in the measurement circuitry; control circuitry configured in a calibration mode to: apply a first calibration signal at the first ADC input and adapt the first compensation based on the first calibration signal and the first compensated digital output signal; and apply a second calibration signal at the first electrode and adapt the second compensation based on the second calibration signal and the second compensated digital output signal.
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公开(公告)号：US20240333011A1
公开(公告)日：2024-10-03
申请号：US18294085
申请日：2022-08-26
Inventor： Ivan PERRY , Ilija JERGOVIC
CPC classification number: H02J7/00712 , H02J7/00304 , H02J50/10 , H02J50/80 , H02M3/158 , H02J2207/20
Abstract: A charging integrated circuit for use in an electronic device may include an input interface configured to receive input electrical energy from a power supply, wherein the input interface is controllable to modify characteristics of the input electrical energy to provide a supply voltage, an N-level power converter configured to receive the supply voltage based on the input electrical energy and generate an output voltage, and a controller configured to control characteristics of the input electrical energy to maximize power efficiency associated with at least one of the charging integrated circuit and the electronic device and control the input interface to adjust the supply voltage such that the output voltage of the power converter is substantially unequal to M times the supply voltage divided by (N−1), where M is a positive integer less than (N−1).
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公开(公告)号：US20240305308A1
公开(公告)日：2024-09-12
申请号：US18192257
申请日：2023-03-29
Inventor： Paul WILSON , Ivan PERRY , John PRIESTLEY , James WELLS
CPC classification number: H03M1/121 , H03M1/1023
Abstract: Circuitry for processing an analyte signal obtained from an electrochemical cell, the circuitry comprising: a first signal path between a first electrode of the electrochemical cell and a first input of an analog-to-digital converter (ADC) circuit, the first signal path comprising a first gain stage configured to convert the analyte signal to a first analog signal; a second signal path between the first electrode and a second input of the ADC circuit, the second signal path comprising a second gain stage configured to convert the analyte signal to a second analog signal; and switching circuitry configured to selectively couple the first electrode to the first input of the ADC circuit.
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公开(公告)号：US20230188156A1
公开(公告)日：2023-06-15
申请号：US17990098
申请日：2022-11-18
Inventor： Ivan PERRY , Hasnain AKRAM , Graeme G. MACKAY , Pietro GALLINA , Chanchal GUPTA , Bryan QUINONES , Abhishek RAY
Abstract: A power converter system for converting an input voltage at an input into an output voltage at an output may comprise a switch network comprising a reactive circuit element and a plurality of switches, switch control circuitry configured to operate the plurality of switch in a plurality of periodic, sequential states to regulate the output voltage, and reference current generating circuitry. The reference current generating circuitry may include a comparator coupled to a sensed switch of the plurality of switches and configured to compare a current flowing through the sensed switch to a reference current and current-steering circuitry coupled to the comparator configured to generate the reference current and alternate the reference current between a first reference current and a second reference current whenever the switch control circuitry changes from one state of the plurality of periodic, sequential states to another state of the plurality of periodic, sequential states.
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公开(公告)号：US20240364202A1
公开(公告)日：2024-10-31
申请号：US18308902
申请日：2023-04-28
Inventor： Jason W. LAWRENCE , Hasnain AKRAM , Graeme G. MACKAY , Ivan PERRY
CPC classification number: H02M1/0025 , H02M1/0009 , H02M3/04
Abstract: A control circuit for generating a control parameter that defines a state sequence of a power converter may include a loop filter configured to, based on an error signal between a reference current signal and a feedback current measurement signal, correct for unmodeled errors in the feedback current measurement signal to generate the control parameter. The control circuit may also include a first feedforward block configured to generate a first offset to the control parameter based on a slew rate of the reference current signal.
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Patent Agency Ranking
公开(公告)号：US20240302438A1
公开(公告)日：2024-09-12
申请号：US18306438
申请日：2023-04-25
Inventor： Ivan PERRY , John PRIESTLEY , Gordon J. BATES , Christos GIAGKOULOVITS
IPC: G01R31/36 , G01R31/3842
CPC classification number: G01R31/3648 , G01R31/3842
Abstract: Circuitry for processing an analyte signal obtained from an electrochemical cell, the circuitry comprising: measurement circuitry having a first input coupled to a first electrode of the electrochemical cell, the measurement circuitry configured to convert the analyte signal at the first electrode to a first analog output signal; a first analog-to-digital converter (ADC) having an first ADC input for receiving the first analog output signal, the first ADC configured to convert the first analog output signal to a first digital output signal at a first ADC output; drive circuitry; and control circuitry, wherein the circuitry is operable in one or more of a calibration mode and a measurement mode, wherein, in the calibration mode, the drive circuitry is configured to apply a calibration signal at the first input of the measurement circuitry, the control circuitry configured to calibrate the measurement circuitry based on the first analog output signal or the first digital output signal responsive to the calibration signal, and wherein, in the measurement mode, the drive circuitry is configured to apply an offset signal at the first input of the measurement circuitry, the control circuitry configured to control the offset signal to maintain the first analog output signal or the first digital output signal within a threshold range.
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公开(公告)号：US20210175852A1
公开(公告)日：2021-06-10
申请号：US16850248
申请日：2020-04-16
Inventor： Philip CLARKIN , Ivan PERRY , Mark H. TOVELL , Roberto NAPOLI , David RHODES
Abstract: The present disclosure relates to circuitry comprising: amplifier circuitry configured to receive a variable supply voltage, wherein the supply voltage varies according to an output signal of the amplifier circuitry; monitoring circuitry configured to monitor one or more parameters of an output signal of the amplifier circuitry; and processing circuitry configured to receive an indication of the voltage of the variable supply voltage and an indication of the monitored parameters from the monitoring circuitry and to apply a correction to one or more of the monitored parameters to compensate for coupling between the variable supply voltage and the monitoring circuitry.
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公开(公告)号：US20250020608A1
公开(公告)日：2025-01-16
申请号：US18221653
申请日：2023-07-13
Inventor： John P. LESSO , Ivan PERRY
Abstract: Circuitry for determining one or more characteristics of an electrochemical cell comprising a first working electrode and a counter electrode, the circuitry comprising: drive circuitry configured to apply a first stimulus to the first working electrode; measurement circuitry configured to measure a first response at the first working electrode; and processing circuitry configured to: applying compensation to the first response to obtain a first corrected response of the electrochemical cell to the first stimulus; and determine a first characteristic of the one or more characteristics of the electrochemical cell based on the first corrected response, the first characteristic associated with the first working electrode.
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公开(公告)号：US20240072559A1
公开(公告)日：2024-02-29
申请号：US18503830
申请日：2023-11-07
Inventor： Ivan PERRY , Hasnain AKRAM , Eric J. KING
IPC: H02J7/00
CPC classification number: H02J7/0068 , H02J7/0063 , H02J2207/20 , H02J2310/22
Abstract: A power management system for use in a device comprising a battery and one or more components configured to draw electrical energy from the battery may include a first power converter configured to electrically couple between charging circuitry configured to provide electrical energy for charging the battery and the one or more downstream components and a bidirectional power converter configured to electrically couple between the charging circuitry and the battery, wherein the bidirectional power converter is configured to transfer charge from the battery or transfer charge from the battery based on a power requirement of the one or more components and a power available from the first power converter.
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公开(公告)号：US20230060984A1
公开(公告)日：2023-03-02
申请号：US17669978
申请日：2022-02-11
Inventor： Ivan PERRY , Ilija JERGOVIC
Abstract: A charging integrated circuit for use in an electronic device may include an input interface configured to receive input electrical energy from a power supply, wherein the input interface is controllable to modify characteristics of the input electrical energy, a regulator configured to receive a supply voltage based on the input electrical energy and generate an output voltage, and a controller configured to control characteristics of the input electrical energy to maximize power efficiency associated with at least one of the charging integrated circuit and the electronic device.
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