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31.发明申请公开(公告)号：US20160267046A1
公开(公告)日：2016-09-15
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
IPC: G06F13/42 , G06F13/16 , G06F13/364
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.
Abstract translation: 微控制器装置具有壳体，多个外部引脚具有多个输入/输出引脚，具有第一中央处理单元（CPU）的第一微控制器，与第一CPU耦合的第一系统总线，与第一中央处理单元 系统总线和与第一系统总线耦合的第一多个外围设备，具有第二中央处理单元（CPU）的第二微控制器，与第二CPU耦合的第二系统总线，与第二系统总线耦合的第二存储器，以及 与第二系统总线耦合的第二多个外围设备，以及焊盘所有权复用器单元，其可控制以将输入/输出引脚的控制分配给第一微控制器或第二微控制器，其中外部引脚的数量小于 第一和第二微控制器的数据总线宽度之和。
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32.发明公开公开(公告)号：US20240364141A1
公开(公告)日：2024-10-31
申请号：US18771498
申请日：2024-07-12
Applicant: Microchip Technology Incorporated
Inventor： Santosh Bhandarkar , Alex Dumais
Abstract: Object detection in wireless power systems and related system, methods, and devices are disclosed. A controller for a wireless power transmitter includes a measurement voltage potential input terminal and a processing core. The processing core is to determine an average of peak to peak amplitude differences present in sampled measurement voltage potentials for each of the plurality of transmit coils, determine a lowest average of the peak to peak amplitude differences, and select a transmit coil corresponding to the lowest average of the peak to peak amplitude differences to transmit wireless power to a receive coil of a wireless power receiver. A wireless power system includes a tank circuit selectively including any one of a plurality of transmit coils.
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33.发明授权公开(公告)号：US12113371B2
公开(公告)日：2024-10-08
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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公开(公告)号：US11949335B2
公开(公告)日：2024-04-02
申请号：US17649214
申请日：2022-01-28
Applicant: Microchip Technology Incorporated
Inventor： Santosh Bhandarkar , Alex Dumais
CPC classification number: H02M3/1582 , H02M1/08 , H02J50/10 , H02J50/12 , H02J50/80
Abstract: Apparatuses and methods related to a converter are disclosed. An apparatus includes a converter and a controller. The converter converts an input voltage potential to an output voltage potential. The input voltage potential and the output voltage potential include direct current (DC) voltage potentials. The controller generates pulse width modulation (PWM) signals responsive to a duty cycle control signal, controls the converter via the PWM signals in a buck mode when the duty cycle control signal is less than a predetermined maximum buck value, and controls the converter via the PWM signals in a cascaded buck-boost mode (CBB mode) when the duty cycle control signal is greater than the predetermined maximum buck value. A duty cycle of at least a portion of the PWM signals transitions linearly with the duty cycle control signal from the buck mode to the CBB mode.
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35.发明授权公开(公告)号：US11611243B2
公开(公告)日：2023-03-21
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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Patent Agency Ranking
公开(公告)号：US20220376559A1
公开(公告)日：2022-11-24
申请号：US17664769
申请日：2022-05-24
Applicant: Microchip Technology Incorporated
Inventor： Santosh Bhandarkar , Alex Dumais
Abstract: Object detection in wireless power systems and related system, methods, and devices are disclosed. A controller for a wireless power transmitter includes a measurement voltage potential input terminal and a processing core. The processing core is to determine an average of peak to peak amplitude differences present in sampled measurement voltage potentials for each of the plurality of transmit coils, determine a lowest average of the peak to peak amplitude differences, and select a transmit coil corresponding to the lowest average of the peak to peak amplitude differences to transmit wireless power to a receive coil of a wireless power receiver. A wireless power system includes a tank circuit selectively including any one of a plurality of transmit coils.
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37.发明授权公开(公告)号：US11159062B2
公开(公告)日：2021-10-26
申请号：US16863865
申请日：2020-04-30
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：US11070091B2
公开(公告)日：2021-07-20
申请号：US16730264
申请日：2019-12-30
Applicant: Microchip Technology Incorporated
Inventor： Santosh Manjunath Bhandarkar , Alex Dumais
Abstract: In a wireless power transfer system for supplying power to a wireless device, e.g., charging a battery, wireless power transmitter coil voltage is used in place of coil current for communication and power control reference. The transmitter coil voltage waveforms provide phase information, with reference to the pulse width modulation (PWM) waveforms, that can be used to demodulate digital packet communication from a wireless power receiver used to provide a voltage to a device. The DC voltage amplitude of the wireless power transmitter coil is used for controlling the power injected to the wireless power receiver coil, while the phase of the transmitter coil voltage PWM signal is used for demodulation of signal packets from the wireless power receiver to control the transmitter coil voltage and thereby wireless power transfer to the power receiver.
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公开(公告)号：US20200381947A1
公开(公告)日：2020-12-03
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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公开(公告)号：US20190052169A1
公开(公告)日：2019-02-14
申请号：US16052026
申请日：2018-08-01
Applicant: Microchip Technology Incorporated
Inventor： Santosh Manjunath Bhandarkar , Alex Dumais
Abstract: A circuit arrangement, a signal processor, and a method of interleaved switched boundary mode power conversion are disclosed. The circuit arrangement comprises at least an input for receiving an input voltage from a power supply; an output to provide an output voltage to a load; a first interleaved circuit comprising a first energy storage device and a first controllable switching device; one or more secondary interleaved circuits, each comprising a secondary energy storage device, and a secondary controllable switching device; and a signal processor, connected to the controllable switching devices. The signal processor comprises a first switching cycle controller, configured for cycled zero-current switching operation of the first controllable switching device; and one or more secondary switching cycle controllers, configured for cycled zero-current switching operation of the secondary controllable switching devices. The signal processor is configured to control, in a given switching cycle, an on-time period of each of the secondary controllable switching devices to correspond to an on-time period of the first controllable switching device. The signal processor is further configured to control phases between the on-time periods of the first and the one or more secondary switching controllers, so that the on-time periods are distributed over the given switching cycle to reduce an overall current ripple at the input.
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