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公开(公告)号：US20240006982A1
公开(公告)日：2024-01-04
申请号：US18217053
申请日：2023-06-30
Applicant: Microchip Technology Incorporated
Inventor： Alex Dumais , Andreas Reiter , Yong Yuenyongsgool , Stephen Bowling , Timothy Phoenix , Justin Oshea
CPC classification number: H02M1/088 , H02M3/01 , H02M3/33571 , H02M1/0009
Abstract: An inductor-inductor-capacitor (LLC) power converter includes a current input interface to receive a current input indication. The current input indication includes a voltage to represent a current passing through of a primary side of the LLC power converter. The LLC power converter includes voltage input interface to receive a voltage input. The voltage input is to include a representative voltage to be provided from a secondary side of the LLC power converter. The LLC power converter includes a control circuit to generate pulsed-width modulation (PWM) control signals for the LLC power converter. The control circuit is to match an on-time period of a first leg and a second leg of the LLC power converter and based upon the current input indication and the voltage input.
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公开(公告)号：US10002103B2
公开(公告)日：2018-06-19
申请号：US15065027
申请日：2016-03-09
Applicant: Microchip Technology Incorporated
Inventor： Bryan Kris , Igor Wojewoda , Alex Dumais , Mike Catherwood , Brian Fall , Jason Tollefson , Calum Wilke , Dave Mickey , Thomas Spohrer , Jim Pepping , Vincent Sheard
IPC: G06F13/00 , G06F3/00 , G06F13/42 , G06F13/364 , G06F13/16 , G06F13/38 , G06F15/167 , G06F1/22
CPC classification number: G06F13/4282 , G06F1/22 , G06F13/1673 , G06F13/364 , G06F13/385 , G06F15/167 , Y02D10/14 , Y02D10/151
Abstract: A microcontroller device has a housing with a plurality of external pins a first microcontroller with a first central processing unit (CPU), a first system bus coupled with the first CPU, first memory coupled with the first system bus, and a first plurality of peripheral devices coupled with the first system bus, and a second microcontroller with a second central processing unit (CPU), a second system bus coupled with the second CPU, second memory coupled with the second system bus, and a second plurality of peripheral devices coupled with the second system bus, wherein first and second microcontroller communicate only via a dedicated interface.
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公开(公告)号：US10002102B2
公开(公告)日：2018-06-19
申请号：US15064964
申请日：2016-03-09
Applicant: Microchip Technology Incorporated
Inventor： Bryan Kris , Igor Wojewoda , Alex Dumais , Mike Catherwood , Brian Fall , Jason Tollefson , Calum Wilke , Dave Mickey , Thomas Spohrer
CPC classification number: G06F13/4282 , G06F13/1673 , G06F13/364 , G06F13/385 , G06F15/7807 , Y02D10/12 , Y02D10/13 , Y02D10/14 , Y02D10/151
Abstract: A microcontroller device has a housing with a plurality of external pins having a plurality of input/output pins, a first microcontroller with a first central processing unit (CPU), a first system bus coupled with the first CPU, first memory coupled with the first system bus, and a first plurality of peripheral devices coupled with the first system bus, a second microcontroller with a second central processing unit (CPU), a second system bus coupled with the second CPU, second memory coupled with the second system bus, and a second plurality of peripheral devices coupled with the second system bus, and a pad ownership multiplexer unit being controllable to assign control of the input/output pins to either the first microcontroller or the second microcontroller, wherein the number of external pins is less than the sum of a data buswidth of the first and second microcontroller.
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公开(公告)号：US08866525B2
公开(公告)日：2014-10-21
申请号：US13778436
申请日：2013-02-27
Applicant: Microchip Technology Incorporated
Inventor： Bryan Kris , John Day , Alex Dumais , Stephen Bowling
CPC classification number: H03K5/133 , H02M1/08 , H02M1/32 , H02M1/38 , H02M3/3353 , H02M3/33576
Abstract: A plurality of PWM generators have user configurable time delay circuits for each PWM control signal generated therefrom. The time delay circuits are adjusted so that each of the PWM control signals arrive at their associated power transistors at the same time. This may be accomplished by determining a maximum delay time of the PWM control signal that has to traverse the longest propagation time and then setting the delay for that PWM control signal to substantially zero delay. Thereafter, all other delay time settings for the other PWM control signals may be determined by subtracting the propagation time for each of the other PWM control signals from the longest propagation time. Thereby insuring that all of the PWM control signals arrive at their respective power transistor control nodes with substantially the same time relationships as when they left their respective PWM generators.
Abstract translation: 多个PWM发生器具有用于由其产生的每个PWM控制信号的用户可配置的时间延迟电路。 时间延迟电路被调整，使得每个PWM控制信号同时到达它们相关联的功率晶体管。 这可以通过确定必须经过最长传播时间的PWM控制信号的最大延迟时间，然后将该PWM控制信号的延迟设定为基本为零的延迟来实现。 此后，可以通过从最长传播时间减去每个其它PWM控制信号的传播时间来确定其它PWM控制信号的所有其他延迟时间设置。 从而确保所有的PWM控制信号到达它们各自的功率晶体管控制节点时具有与其离开它们各自的PWM发生器时基本相同的时间关系。
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5.发明公开公开(公告)号：US20230231420A1
公开(公告)日：2023-07-20
申请号：US18186837
申请日：2023-03-20
Applicant: Microchip Technology Incorporated
Inventor： Santosh Bhandarkar , Alex Dumais
CPC classification number: H02J50/60 , G01R27/2611 , H02J50/12 , H02J50/402
Abstract: Object detection for wireless power transmitters and related systems, methods, and devices are disclosed. A controller for a wireless power transmitter is configured to receive a measurement voltage potential responsive to a tank circuit signal at a tank circuit, provide an alternating current (AC) signal to each of the plurality of transmit coils one at a time, and determine at least one of a resonant frequency and a quality factor (Q-factor) of the tank circuit responsive to each selected transmit coil of the plurality of transmit coils. The controller is also configured to select a transmit coil to use to transmit wireless power to a receive coil of a wireless power receiver responsive to the determined at least one of the resonant frequency and the Q-factor for each transmit coil of the plurality of transmit coils.
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Patent Agency Ranking
公开(公告)号：US11637450B2
公开(公告)日：2023-04-25
申请号：US17647431
申请日：2022-01-07
Applicant: Microchip Technology Incorporated
Inventor： Santosh Bhandarkar , Alex Dumais
Abstract: Various methods relate to digital demodulation for wireless power transmission. A method of operating a wireless power transmitter includes transmitting, with a transmitter coil of a wireless power transmitter, power to a receiver coil of a wireless power receiver. The method also includes sampling one or more electrical signals of the wireless power transmitter. The one or more electrical signals are modulated responsive to alteration of electrical conditions at the wireless power receiver. The method further includes digitally demodulating the sampled one or more electrical signals using a digital filter to obtain a communication from the wireless power receiver. The digital filter includes at least two low pass filter stages that each filter out a fundamental frequency used for the transmission of the power to the receiver coil.
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公开(公告)号：US20220037933A1
公开(公告)日：2022-02-03
申请号：US17451673
申请日：2021-10-21
Applicant: Microchip Technology Incorporated
Inventor： Santosh Bhandarkar , Alex Dumais
Abstract: Object detection for wireless power transmitters and related systems, methods, and devices are disclosed. A controller for a wireless power transmitter is configured to receive a measurement voltage potential responsive to a tank circuit signal at a tank circuit, provide an alternating current (AC) signal to each of the plurality of transmit coils one at a time, and determine at least one of a resonant frequency and a quality factor (Q-factor) of the tank circuit responsive to each selected transmit coil of the plurality of transmit coils. The controller is also configured to select a transmit coil to use to transmit wireless power to a receive coil of a wireless power receiver responsive to the determined at least one of the resonant frequency and the Q-factor for each transmit coil of the plurality of transmit coils.
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公开(公告)号：US11239696B2
公开(公告)日：2022-02-01
申请号：US16843726
申请日：2020-04-08
Applicant: Microchip Technology Incorporated
Inventor： Santosh Bhandarkar , Alex Dumais
Abstract: Systems, methods, and devices related to a converter of a wireless power transmitter are disclosed. A controller for a wireless power transmitter is configured to sample an output voltage potential to produce a digital output voltage potential, determine an error between an output reference voltage potential and the digital output voltage potential, filter the error to determine a filtered error, and apply an adaptive gain to the filtered error to determine a duty cycle control signal. The adaptive gain is determined responsive to a converter input voltage potential of the converter of the wireless power transmitter. The controller is further configured to determine a controller output including buck pulse width modulation (PWM) signals and boost PWM signals based on the duty cycle control signal, the controller output configured to control the converter of the wireless power transmitter.
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9.发明授权公开(公告)号：US10432085B2
公开(公告)日：2019-10-01
申请号：US16165384
申请日：2018-10-19
Applicant: Microchip Technology Incorporated
Inventor： Santosh Manjunath Bhandarkar , Alex Dumais
Abstract: A circuit arrangement for switched boundary mode power conversion, a corresponding signal processor and a method of switched boundary mode power conversion are provided. The circuit arrangement comprises an input for receiving an input voltage from a power supply, an output to provide an output voltage to a load, an energy storage device, a controllable switching device, and a signal processor. The signal processor is connected to the controllable switching device and being configured for zero-current switching of the switching device. The signal processor is further configured to determine an on-time period for the switching device in one or more switching cycles based on the output voltage and the output of a crossover frequency control module to provide an improved transient response characteristic of the circuit arrangement.
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10.发明授权公开(公告)号：US09048863B2
公开(公告)日：2015-06-02
申请号：US14202420
申请日：2014-03-10
Applicant: Microchip Technology Incorporated
Inventor： Bryan Kris , Andreas Reiter , Tibor Futo , Alex Dumais
CPC classification number: H03M1/66 , H02M3/157 , H02M3/33515 , H03M3/502 , H03M7/3028 , H03M7/3042
Abstract: A slope compensation module provides slope compensation of a switched-mode power supply using current mode control. This slope compensation function may be provided by a digital slope compensation generator and a pulse density modulated digital-to-analog converter (PDM DAC) having a selectable response mode low pass filter.
Abstract translation: 坡度补偿模块使用电流模式控制提供开关模式电源的斜率补偿。 该斜率补偿功能可以由具有可选择的响应模式低通滤波器的数字斜率补偿发生器和脉冲密度调制数模转换器（PDM DAC）提供。
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