中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

33 records (took 0.024 seconds)

    PWM to Control LLC Power Converter
    3.
    发明公开
    PWM to Control LLC Power Converter 审中-公开

    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

    IPC: H02M1/088 ,  H02M3/00 ,  H02M3/335

    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.

    Temperature compensated clock frequency monitor
    5.
    发明授权
    Temperature compensated clock frequency monitor 有权

    公开(公告)号：US10936004B2

    公开(公告)日：2021-03-02

    申请号：US16143967

    申请日：2018-09-27

    Applicant: Microchip Technology Incorporated

    Inventor： Bryan Kris ,  Igor Wojewoda ,  Stephen Bowling ,  Yong Yuenyongsgool

    IPC: G06F1/08 ,  G06F1/20 ,  G06F11/30 ,  G01R19/25 ,  G05B13/02 ,  G01R23/15 ,  H03L1/02 ,  G04G3/04 ,  G05B19/042

    Abstract: A temperature-compensating clock frequency monitor circuit may be provided to detect a clock pulse frequency in an electronic device that may cause erratic or dangerous operation of the device, as a function of an operating temperature of the device. The temperature-compensating clock frequency monitor circuit include a temperature sensor configured to measure a temperature associated with an electronic device, a clock having an operating frequency, and a frequency monitoring system. The frequency monitoring system may be configured to determine the operating frequency of the clock, and based at least on (a) the operating frequency of the clock and (b) the measured temperature associated with the electronic device, generate a corrective action signal to initiate a corrective action associated with the electronic device or a related device. The temperature sensor, clock, and frequency monitoring system may, for example, be provided on a microcontroller.

    Ramp generation module
    6.
    发明授权
    Ramp generation module 有权

    公开(公告)号：US10069488B2

    公开(公告)日：2018-09-04

    申请号：US14669321

    申请日：2015-03-26

    Applicant: Microchip Technology Incorporated

    Inventor： Sean Stacy Steedman ,  Yong Yuenyongsgool ,  Jacobus Albertus van Eeden ,  Joseph Julicher ,  Marilena Dracea

    IPC: H03K4/06 ,  H03K4/50 ,  H03K4/502

    Abstract: A digitally controlled ramp generator has a constant current source, a first controllable switch coupled between the constant current source and an output node, a capacitor coupled with the output node, a second controllable switch coupled with the output node, a constant current sink coupled with the second controllable switch, and a control unit. The control unit is configured in a first operating mode to select control signals for the first and second controllable switch to generate a rising waveform by charging said capacitor through the first controllable switch and a falling waveform by discharging the capacitor through the second controllable switch wherein the control signals can be selected from the group of a time based control signal and a voltage based control signal. A variety of other control modes may be provided.

    OVERRIDE MECHANISM FOR PWM OPERATION
    7.
    发明公开
    OVERRIDE MECHANISM FOR PWM OPERATION 审中-公开

    公开(公告)号：US20240275366A1

    公开(公告)日：2024-08-15

    申请号：US18432347

    申请日：2024-02-05

    Applicant: Microchip Technology Incorporated

    Inventor： Yong Yuenyongsgool ,  Andreas Reiter ,  Stephen Bowling ,  Jason Sachs

    IPC: H03K3/017

    CPC classification number: H03K3/017

    Abstract: An apparatus includes a pulsed-width modulation (PWM) generator circuit to generate generally complementary PWM signals. The signals are to prevent two complementary switches that receive the complementary PWM signals from both being activated at a same time. The PWM signals are generally complementary with respect to their active portions. The apparatus includes an override circuit to override at least one of the complementary PWM signals to yield adjusted PWM signals. The adjusted PWM signals are to cause the two complementary switches to be activated at a same time when the adjusted PWM signals are received at the two complementary switches.

    System and Method for Configuring Coordinated PWM Generators
    8.
    发明公开
    System and Method for Configuring Coordinated PWM Generators 审中-公开

    公开(公告)号：US20240204763A1

    公开(公告)日：2024-06-20

    申请号：US18540509

    申请日：2023-12-14

    Applicant: Microchip Technology Incorporated

    Inventor： Yong Yuenyongsgool ,  Andreas Reiter ,  Stephen Bowling

    IPC: H03K7/08 ,  H03K3/70 ,  H03K7/10

    CPC classification number: H03K7/08 ,  H03K3/70 ,  H03K7/10

    Abstract: A system and method is provided including a first pulse width modulation (PWM) generator circuit including a first timer to generate a first cycle count, a first configuration register to define characteristics of a first electrical pulse to be generated, and a trigger cycle count specifying a timing of a first trigger signal, and a first load enable input to load a new configuration value into the first configuration register, a second PWM generator circuit including a second timer to generate a second cycle count, a second configuration register to define characteristics of a second electrical pulse to be generated, a second load enable input to load a new configuration value into the second configuration register, and a load enable selector to selectively drive the second load enable input based on the first trigger signal.

    Automatic protection against runt pulses
    9.
    发明授权
    Automatic protection against runt pulses 有权

    公开(公告)号：US11621702B2

    公开(公告)日：2023-04-04

    申请号：US17557204

    申请日：2021-12-21

    Applicant: Microchip Technology Incorporated

    Inventor： Yong Yuenyongsgool ,  Stephen Bowling ,  Pedro Ovalle

    IPC: H03K3/017 ,  G06F1/06 ,  H03K21/02

    Abstract: An apparatus includes an adjustment circuit configured to receive a pulsed-width modulation (PWM) input, generate an adjusted PWM signal based upon the PWM input, and determine that a first pulse of the PWM input is shorter than a runt signal limit. The adjustment circuit is further configured to, in the adjusted PWM signal, extend the first pulse of the PWM input based on the determination that the PWM input is shorter than the runt signal limit, and output the adjusted PWM signal to an electronic device.

Patent Agency Ranking