-
公开(公告)号：US20180376252A1
公开(公告)日：2018-12-27
申请号：US16001596
申请日：2018-06-06
Inventor： Eric J. KING , Christian LARSEN , Anthony S. DOY
Abstract: A system may include a charge pump configured to transfer electrical energy from a source of electrical energy coupled to an input of the charge pump to an energy storage device coupled to an output of the charge pump and configured to store the electrical energy transferred from the source of electrical energy, a power converter configured to transfer electrical energy from the energy storage device to an output of the power converter, wherein the power converter comprises a first plurality of switches and a power inductor arranged such that one switch of the first plurality of switches is coupled between the power inductor and the output of the charge pump, an output stage configured to transfer electrical energy between the output of the power converter to a load coupled to an output of the output stage, the output stage comprising a second plurality of switches, and a controller configured to generate an output voltage at the output of the output stage as an amplified version of an input signal.
-
公开(公告)号：US20180234055A1
公开(公告)日：2018-08-16
申请号：US15887644
申请日：2018-02-02
Inventor： Eric J. KING , John L. MELANSON
Abstract: A boosted amplifier system may include a boost stage configured to boost an input voltage of the boost stage to an output voltage greater than the input voltage and an amplifier stage powered by the output voltage of the charge pump and configured to amplify an input signal to generate an output signal. The boost stage may have input current limiting circuitry for ensuring that an input current of the boost stage is maintained below a current limit and the amplifier stage may have an input for receiving an indication of whether the current-limiting circuitry of the boost stage is activated to maintain the input current of the boost stage below the current limit.
-
公开(公告)号：US20170272043A1
公开(公告)日：2017-09-21
申请号：US15285038
申请日：2016-10-04
Inventor： Eric J. KING , Mars HE , John L. MELANSON , Siddharth MARU
CPC classification number: H03F3/2171 , H02M5/293 , H02M2005/2932 , H03F1/0216 , H03F1/0227 , H03F1/32 , H03F3/185 , H03F3/2173 , H03F3/2178 , H03F2200/03 , H03F2200/153 , H03F2200/432 , H04R3/12
Abstract: A method may include processing a first signal derived from an input signal with a first path to generate a first path voltage at a first path output, processing a second signal derived from the input signal with a second path to generate a second path voltage at a second path output, the second path comprising a linear amplifier having at least one transistor for driving the second path voltage, generating the first signal and the second signal with a signal splitter, such that the second signal comprises information of the input signal absent from the first signal, and such that the second path voltage is of a sufficient magnitude such that the at least one transistor operates in a saturation region of the at least one transistor throughout a dynamic range of a load voltage equal to the difference of the first path voltage and the second path voltage.
-
公开(公告)号：US20170141675A1
公开(公告)日：2017-05-18
申请号：US15340151
申请日：2016-11-01
Inventor： Eric J. KING , John L. MELANSON , Siddharth MARU
Abstract: In accordance with embodiments of the present disclosure, an apparatus may include a switched-mode power supply and a controller. The switched-mode power supply may include an inductor and a plurality of switches coupled to the inductor. The controller may be configured to control an inductor current of the inductor by controlling the plurality of switches to operate the switched-mode power supply in at least three phases, the at least three phases comprising: a first phase having a first period in which the inductor current increases; and a second phase having a second period in which the inductor current decreases; wherein, at least one of the first period and the second period is defined by a difference in time between switching of at least two switches of the plurality of switches.
-
公开(公告)号：US20240288477A1
公开(公告)日：2024-08-29
申请号：US18533477
申请日：2023-12-08
Inventor： Alastair M. BOOMER , John B. BOWLERWELL , Malcolm BLYTH , Eric J. KING
CPC classification number: G01R21/06 , G01R31/2837 , H02H7/20
Abstract: A system for estimating power dissipation in an integrated circuit comprising a power converter and an amplifier, the system comprising processing circuitry configured to: receive a signal indicative of an output voltage to a load which, in use of the integrated circuit, is driven by the amplifier; receive a signal indicative of an output current to the load; determine an output power value based on the received signal indicative of the output voltage to the load and the received signal indicative of the output current to the load; receive a signal indicative of an input voltage to the power converter; receive a signal indicative of an average current input to the power converter; determine an input power value based on the received signal indicative of the input voltage to the power converter and the received signal indicative of the average current input to the power converter; and determine a power dissipation value based on the determined output power value and the determined input power value.
-
Patent Agency Ranking
公开(公告)号：US20240266948A1
公开(公告)日：2024-08-08
申请号：US18415208
申请日：2024-01-17
Inventor： John B. BOWLERWELL , Eric J. KING , Alastair M. BOOMER , Malcolm BLYTH
CPC classification number: H02M1/327 , H01L23/34 , H02M1/0009 , H02M3/156
Abstract: A method for controlling an input current limit of boost converter circuitry, the method comprising: receiving a power dissipation value for the boost converter circuitry; and controlling an input current limit of the boost converter circuitry based on the power dissipation value.
-
公开(公告)号：US20240250599A1
公开(公告)日：2024-07-25
申请号：US18415862
申请日：2024-01-18
Inventor： Hasnain AKRAM , Graeme G. MACKAY , Eric J. KING
CPC classification number: H02M1/0032 , H02M1/0025 , H02M3/1582
Abstract: A system may include a control circuit and a multi-level power converter comprising a plurality of switches and a power inductor electrically coupled to the plurality of switches, wherein the power inductor is coupled to a switching node of the multi-level power converter, wherein the multi-level power converter is capable of applying three or more switching voltages to the switching node. The control circuit may generate control signals that define a sequence of switching of the plurality of switches of the power converter, the control circuit configured to, during a switching cycle of the converter in which the power inductor is magnetized and demagnetized, control switching of the plurality of switches among at least three switch configurations during magnetization and demagnetization of the power inductor such that a voltage on the switching node experiences a different respective magnitude of voltage in each of the at least three switch configurations.
-
58.发明公开公开(公告)号：US20230336068A1
公开(公告)日：2023-10-19
申请号：US18337223
申请日：2023-06-19
Inventor： Jeffrey A. MAY , Eric J. KING , Christian LARSEN , Eric EKLUND
CPC classification number: H02M1/0019 , H02J7/0063 , H02M1/42 , H02M3/1582 , H04R1/1091
Abstract: A power converter system may include a first power converter configured to couple via its input to a power source and configured to convert an input voltage provided by the power source to an intermediate voltage, a second power converter coupled via its input to an output of the first power converter and configured to convert the intermediate voltage to a regulated output voltage, a capacitor coupled at one of its terminals to an electrical node of the intermediate voltage. Based on one or more electrical parameters of the power converter, the second power converter is controlled to regulate the regulated output voltage at a substantially constant level and the first power converter is controlled to control the intermediate voltage to maintain the intermediate voltage between a maximum voltage and a minimum voltage and regulate an input current drawn from the power source at a substantially constant level.
-
公开(公告)号：US20220393576A1
公开(公告)日：2022-12-08
申请号：US17892575
申请日：2022-08-22
Inventor： Eric J. KING , John L. MELANSON , Graeme G. MACKAY , Lingli ZHANG
Abstract: A battery management system configured to electrically couple to a battery may include a boost converter comprising a plurality of switches arranged to provide a boosted output voltage at an output of the boost converter from a source voltage of the battery and a bypass switch coupled between the battery and the output, wherein the battery management system is operable in a plurality of modes comprising a bypass mode wherein the source voltage is bypassed to the output and when the battery management system is in the bypass mode, at least one switch of the plurality of switches is enabled to increase a conductance between the battery and the output.
-
公开(公告)号：US20220344958A1
公开(公告)日：2022-10-27
申请号：US17395682
申请日：2021-08-06
Inventor： John L. MELANSON , Eric J. KING , Emmanuel MARCHAIS
IPC: H02J7/00
Abstract: A battery management system, may include an input configured to couple to a power supply, an output configured to couple to a battery, and battery management circuitry coupled between the power supply and the battery and configured to deliver electrical energy to the output at a significantly higher peak-to-average power ratio than receipt of electrical energy to the input.
-
-
-
-
-
-
-
-
-
Search Results
78
records
(took 0.019 seconds)
