公开(公告)号：US20220300443A1

公开(公告)日：2022-09-22

申请号：US17805642

申请日：2022-06-06

Applicant: Microchip Technology Incorporated

Inventor： Jacob Lunn Lassen

IPC: G06F13/28 ,  G06F13/16

Abstract: Waveform circuitry and related apparatuses and methods are disclosed. An apparatus includes a memory device to store waveform data corresponding to a waveform, a processor, and a waveform circuitry to autonomously pre-process the waveform data independently from the processor and provide the pre-processed waveform data to one or more peripheral devices. A pre-processed waveform corresponding to the pre-processed waveform is data different from the waveform.

公开(公告)号：US11443820B2

公开(公告)日：2022-09-13

申请号：US15956526

申请日：2018-04-18

Applicant: Microchip Technology Incorporated

Inventor： Lorenzo Bedarida ,  Simone Bartoli ,  Albert S. Weiner

IPC: G11C29/02 ,  G06F13/28 ,  G11C8/10 ,  G11C16/08 ,  G11C7/24 ,  G11C8/20 ,  G11C29/44 ,  G11C29/38

Abstract: A memory device, memory address decoder, a memory system and related method for memory attack detection are disclosed. An apparatus includes a memory decoder include multiple stages in a decoding path configured to generate a select signal from an input address signal, and fault detecting logic operably coupled with the memory decoder and configured to receive feedback signals distributed from the multiple stages indicative of a fault along the decoding path.

公开(公告)号：US11442586B2

公开(公告)日：2022-09-13

申请号：US15997518

申请日：2018-06-04

Applicant: Microchip Technology Incorporated

Inventor： Anders Vinje

IPC: G06F3/044 ,  G06F3/041

Abstract: The embodiments of the present disclosure relate generally to systems and methods for canceling mutual capacitive effects in a capacitive touch measurement, and more specifically, implementing a driven shield using rail-to-rail voltage.

公开(公告)号：US11442087B2

公开(公告)日：2022-09-13

申请号：US16506492

申请日：2019-07-09

Applicant: Microchip Technology Incorporated

Inventor： Razvan Ionut Ungureanu ,  Thomas Anderson

IPC: G01R22/06 ,  G01R35/04 ,  H01M10/48

Abstract: A power meter includes a sampling circuit configured to initially make electrical measurements of a unit under test at a first sampling frequency. The power meter includes an adaptive circuit. The power meter includes an accumulator configured to accumulate electrical measurements of the unit under test from the sampling circuit. After a change in sampling frequency from the first sampling frequency to a second sampling frequency, the sampling circuit makes second electrical measurements at the second sampling frequency. The adaptive circuit is configured to adjust the second electrical measurements from the sampling circuit according to a factor. The factor is based on a relationship between the first sampling frequency and the second sampling frequency. The adjustment yields adjusted second electrical measurements. The accumulator is further configured to accumulate the adjusted second electrical measurements.

公开(公告)号：US20220253091A1

公开(公告)日：2022-08-11

申请号：US17650630

申请日：2022-02-10

Applicant: Microchip Technology Incorporated

Inventor： Jason M. Sachs ,  Bryan Kris

IPC: G06F1/08 ,  G06F1/06 ,  G06F7/50

Abstract: Accumulators for reducing frequency of samples and related apparatuses, systems, and methods are disclosed. An apparatus includes a first accumulator and a second accumulator. The first accumulator provides a first total. The first total corresponds to a sum of a current sample value of an input signal and a previous value of the first total. The second accumulator provides a second total. The second total corresponds to a sum of the first total and a previous value of the second total.

公开(公告)号：US20220149659A1

公开(公告)日：2022-05-12

申请号：US17649214

申请日：2022-01-28

Applicant: Microchip Technology Incorporated

Inventor： Santosh Bhandarkar ,  Alex Dumais

IPC: H02J50/10 ,  H02J50/80 ,  H02J50/12 ,  H02M1/08 ,  H02M3/158

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.

公开(公告)号：US20220131412A1

公开(公告)日：2022-04-28

申请号：US17647431

申请日：2022-01-07

Applicant: Microchip Technology Incorporated

Inventor： Santosh Bhandarkar ,  Alex Dumais

IPC: H02J50/10 ,  H02J50/80 ,  H02J50/12 ,  H02M1/08 ,  H02M3/158

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.

公开(公告)号：US20220100309A1

公开(公告)日：2022-03-31

申请号：US17643537

申请日：2021-12-09

Applicant: Microchip Technology Incorporated

Inventor： Fredrik Jonsson ,  Richard P. Collins ,  Lionel Nicolas Portmann

IPC: G06F3/041 ,  G06F3/044

Abstract: Some disclosed embodiments relate, generally, to shaping a waveform of a reference signal used by a driver of a touch sensor to limit electromagnetic emissions (EME) emitted by a touch sensor during a sensing operation. Some disclosed embodiments relate, generally, to a DAC referenced touch sensor driver and controlling an amount of EME emitted at a touch sensor using shapes of reference signals used by a touch detector to detect touches at the touch sensor. Some disclosed embodiments relate, generally, to compensating for effects of foreign noise at a touch sensor. And more specifically, to changing a shape of a reference signal based on a change to a sampling rate made to compensate for foreign noise.

公开(公告)号：US11287865B2

公开(公告)日：2022-03-29

申请号：US16745680

申请日：2020-01-17

Applicant: Microchip Technology Incorporated

Inventor： Atish Ghosh ,  Venkatha Supramanian Kunjidabadam ,  Sandhya Asokan ,  Hari Kishore Rajendran

IPC: G06F1/26 ,  G06F1/32 ,  G06F1/3296 ,  G06F1/28 ,  G06F1/3215

Abstract: A universal serial bus (USB) dock includes USB ports, each configured to connect to a respective USB element. The USB dock includes a circuit communicatively coupled to the USB ports and configured to determine a first temperature measurement in the USB dock, determine a power demand for each USB element connected to the USB ports, determine an allocation of power for the USB elements, and, based on the first allocation of power, provide less than the power demand for one or more of the USB elements based upon a total power demand by the USB elements and the first temperature measurement.

公开(公告)号：US20220095377A1

公开(公告)日：2022-03-24

申请号：US17457358

申请日：2021-12-02

Applicant: Microchip Technology Incorporated

Inventor： Venkatraman Iyer ,  Dixon Chen ,  John Junling Zang ,  Michael Rentschler

IPC: H04W74/08

Abstract: Various embodiments relate to wired local area networks. A method may include detecting, at a node in a wired local area network, at least one event. A physical layer device of the network node is configured to implement a physical level collision avoidance (PLCA) sublayer. The at least one event may include at least one of an amount of data stored in a first-in-first-out (FIFO) buffer of the node being at least a threshold amount, and a received packet being a precision time protocol (PTP) packet incurring variable delay. The method may further include emulating a collision at the node in response to the at least one detected event.