-
公开(公告)号：US11652455B2
公开(公告)日：2023-05-16
申请号：US17173813
申请日：2021-02-11
Inventor： Ravi K. Kummaraguntla , Christophe J. Amadi , John L. Melanson , Axel Thomsen , John C. Tucker , Eric J. King
IPC: H03F3/387 , G01R31/3842 , G01R31/40 , H03F3/181
CPC classification number: H03F3/387 , G01R31/3842 , G01R31/40 , H03F3/181 , H03F2200/03 , H03F2200/375
Abstract: A signal processing system may include a signal path and a chop management circuit. The signal path may comprise a chopper configured to chop a differential input signal to the signal path at a chopping frequency and a low-pass filter downstream of the chopper and configured to filter out intermodulation products of a direct current offset of the signal path and intermodulation products of an aggressor on the differential input signal in order to generate an output signal. The chop management circuit may be communicatively coupled to the chopper and configured to, based on operational parameters associated with the signal path, dynamically manage energy of one or more clock signals used to define the chopping frequency.
-
公开(公告)号：US11606642B2
公开(公告)日：2023-03-14
申请号：US17343479
申请日：2021-06-09
Inventor： Anthony S. Doy , Eric J. King
IPC: H04R3/00 , H03K17/687 , H03F3/217
Abstract: The application describes a switched driver (401) for outputting a drive signal at an output node (402) to drive a load such as a transducer. The driver receives respective high-side and low-side voltages (VinH, VinL) defining an input voltage at first and second input nodes and has connections for first and second capacitors (403H, 403L). A network of switching paths is configured such that each of the first and second capacitors can be selectively charged to the input voltage, the first input node can be selectively coupled to a first node (N1) by a path that include or bypass the first capacitor, and the second input node can be selectively coupled to a second node (N2) by a path that includes or bypasses the second capacitor. The output node (402) can be switched between two switching voltages at the first or second nodes. The driver is selectively operable in different operating modes, where the switching voltages are different in each of said modes.
-
公开(公告)号：US11437935B2
公开(公告)日：2022-09-06
申请号：US15992504
申请日：2018-05-30
Inventor： Eric J. King , John L. Melanson
Abstract: A method may include controlling commutation of a plurality of switches of an output stage comprising the plurality of switches in order to transfer charge between an energy storage device and a load to generate an output voltage across the load as an amplified version of an input signal, wherein the load comprises capacitive energy storage and controlling the power converter in order to regulate a cumulative electrical energy present in the system at an energy target, wherein the power converter is configured to transfer electrical energy from a source of electrical energy coupled to an input of the power converter to the energy storage device coupled to the output of the power converter and configured to store the electrical energy transferred from the source of electrical energy.
-
64.发明授权公开(公告)号：US11424682B2
公开(公告)日：2022-08-23
申请号：US17119517
申请日：2020-12-11
Inventor： Jason W. Lawrence , Eric J. King , Graeme G. Mackay , Theodore M. Burk
Abstract: A system for controlling a current in a power converter may include an outer control loop configured to use an outer set of output voltage thresholds for an output voltage generated by the power converter in order to provide hysteretic control of the current, an inner control loop configured to use an inner set of output voltage thresholds for the output voltage in order to provide continuous control of the current, the inner control loop further configured to measure a time duration required for the output voltage to cross a single pair of two output voltage thresholds of the inner set of output voltage thresholds in order to determine an input-referred estimate of a current load of the power converter and set a peak current threshold and a valley current threshold for the current based on the input-referred estimate of the current load.
-
公开(公告)号：US11387732B2
公开(公告)日：2022-07-12
申请号：US16916395
申请日：2020-06-30
Inventor： Eric J. King , Ajit Sharma , Lingli Zhang , Christian Larsen , Graeme G. Mackay
Abstract: A system may include a power converter having a maximum allowable input power drawn from a power source, an energy storage element coupled to an output of the power converter at a top plate of the energy storage element, wherein the energy storage element is configured to store excess energy, and control circuity configured to, when an input power of the power converter exceeds the maximum allowable input power, cause excess energy stored in the energy storage element to be consumed by circuitry coupled to the output of the power converter, and in order to maintain positive voltage headroom for the circuitry coupled to the output of the power converter, selectively couple a bottom plate of the energy storage element to the power source such that excess energy stored by the circuitry coupled to the output of the power converter is consumed from the energy storage device when the input power of the power converter exceeds the maximum allowable input power.
-
Patent Agency Ranking
公开(公告)号：US11204670B2
公开(公告)日：2021-12-21
申请号：US17142484
申请日：2021-01-06
Inventor： Siddharth Maru , Tejasvi Das , Luke LaPointe , Srdjan Marijanovic , Zhong You , Drew Kinney , Anthony S. Doy , Eric J. King
Abstract: A system may include a resistive-inductive-capacitive sensor, a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to at a plurality of periodic intervals, measure phase information associated with the resistive-inductive-capacitive sensor and based on the phase information, determine a displacement of a mechanical member relative to the resistive-inductive-capacitive sensor. The system may also include a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency and a driving amplitude, wherein at least one of the driving frequency and the driving amplitude varies among the plurality of periodic intervals.
-
公开(公告)号：US11075605B2
公开(公告)日：2021-07-27
申请号：US16793846
申请日：2020-02-18
Inventor： Eric J. King
Abstract: A mobile device may include a power supply configured to generate a supply voltage, a power converter configured to generate a converted voltage from the supply voltage wherein the converted voltage is significantly different than the supply voltage, and a plurality of power domains. The plurality of power domains may include a first power domain global to the mobile device and comprising a first plurality of electronic components powered from the supply voltage and a second power domain global to the mobile device and comprising a second plurality of electronic components powered from the converted voltage, wherein power requirements of each of the second plurality of electronic components are significantly higher than power requirements of each of the first plurality of electronic components.
-
公开(公告)号：US10921159B1
公开(公告)日：2021-02-16
申请号：US16299565
申请日：2019-03-12
Inventor： Tejasvi Das , Zhong You , Siddharth Maru , Eric J. King , Johann G. Gaboriau , Luke Lapointe , Matthew Beardsworth
Abstract: A system may include a first resistive-inductive-capacitive sensor, a second resistive-inductive-capacitive sensor, and a measurement circuit communicatively coupled to the first resistive-inductive-capacitive sensor and the second resistive-inductive-capacitive sensor and configured to measure first phase information associated with the first resistive-inductive-capacitive sensor, measure second phase information associated with the second resistive-inductive-capacitive sensor, and based on the first phase information and the second phase information, determine a displacement of a mechanical member relative to the first resistive-inductive-capacitive sensor.
-
公开(公告)号：US10917013B2
公开(公告)日：2021-02-09
申请号：US16692072
申请日：2019-11-22
Inventor： John L. Melanson , Eric J. King , Jason W. Lawrence
Abstract: A boost converter may include a first stage comprising a first dual anti-wound inductor constructed such that its windings generate opposing magnetic fields in its magnetic core, and a second stage comprising a second dual anti-wound inductor constructed such that its windings generate opposing magnetic fields in its magnetic core. The boost converter may also include control circuitry for controlling the first stage and the second stage to have a plurality of phases comprising a first phase wherein a first coil of the first dual anti-wound inductor and a second coil of the second dual anti-wound inductor are coupled in parallel between a power supply and a ground voltage and a second phase wherein the first coil of the first dual anti-wound inductor and the second coil of the second dual anti-wound inductor are coupled in series between the power supply and the ground voltage.
-
公开(公告)号：US10790749B2
公开(公告)日：2020-09-29
申请号：US15783744
申请日：2017-10-13
Inventor： Eric J. King , Eric B. Smith , Mark May
Abstract: A system may include a first capacitor, a first switched-mode power supply configured to deliver energy from a power source to the first capacitor at an output load of the first switched-mode power supply, a second capacitor having a capacitance larger than the first capacitor, a second switched-mode power supply configured to deliver energy from the power source or a second power source to the second capacitor and one or more switching elements coupled between the first capacitor and the second capacitor. The system may operate in a plurality of modes, including a first mode in which the first switched-mode power supply transfers energy to the first capacitor and the second capacitor, a second mode in which the second capacitor transfers energy to the first capacitor, and a third mode in which first switched-mode power supply transfers energy to the first capacitor and the second capacitor and the second switched-mode power supply transfers energy to the first capacitor and the second capacitor.
-
-
-
-
-
-
-
-
-
Search Results
73
records
(took 0.023 seconds)
