公开(公告)号：US10153909B2

公开(公告)日：2018-12-11

申请号：US14791969

申请日：2015-07-06

Applicant: Silicon Laboratories Inc.

Inventor： Vince András Horváth ,  Tamás Marozsák ,  Péter Onódy ,  John Gammel

IPC: H04L12/10 ,  H04L12/40

Abstract: In some embodiments, a powered device includes a powered device circuit, which may include a maintain power signature (MPS) circuit configured to compare a sense current to a reference current. In a first mode, the MPS circuit may be configured to automatically generate an MPS signal when the sense current is less than the reference current.

公开(公告)号：US20220115941A1

公开(公告)日：2022-04-14

申请号：US17066251

申请日：2020-10-08

Applicant: Silicon Laboratories Inc.

Inventor： Michael R. May ,  Fernando Naim Lavalle Aviles ,  Carlos Jesus Briseno-Vidrios ,  Patrick De Bakker ,  Gabor Marek ,  Charles Guo Lin ,  Peter Onody ,  Tamás Marozsák ,  András V. Horváth

IPC: H02M1/08 ,  H03K17/691 ,  H03K17/18

Abstract: An isolated gate driver has a first portion in a first voltage domain and a second portion in a second voltage domain. The first and second portions are coupled by an isolation communication channel. The isolated gate driver transmits across the isolation communication channel a serial word containing first drive strength information and simultaneously transmits gate information with the serial word across the isolation communication channel. The gate information indicates a state of a gate signal for a transistor coupled to the second portion of the isolated gate driver. A demodulator circuit demodulates a signal containing the gate information and the drive strength information transmitted across the isolation communication channel in the serial word. A gate signal output circuit coupled to the demodulator circuit supplies the gate signal based on the gate information with a drive strength of the gate signal being based on the drive strength information.

公开(公告)号：US20170019262A1

公开(公告)日：2017-01-19

申请号：US14800616

申请日：2015-07-15

Applicant: Silicon Laboratories Inc.

Inventor： Vince András Horváth ,  Tamás Marozsák ,  Péter Onódy ,  John Gammel

IPC: H04L12/10

CPC classification number: H02M1/36 ,  H02H9/041 ,  H02M1/32

Abstract: In some embodiments, powered devices, circuits, and methods are disclosed that may include biasing a hot swap switch to couple a capacitor of a DC-DC converter to negative supply node when an input voltage exceeds a threshold and biasing a telephony switch to couple a positive supply node to a negative supply node when the input voltage exceeds the threshold. Further, the method may further include deactivating the hot swap switch after a period of time, and continuing to bias the telephony switch.

Abstract translation: 在一些实施例中，公开了供电设备，电路和方法，其可以包括当输入电压超过阈值时偏置热交换开关以将DC-DC转换器的电容器耦合到负电源节点，并且偏置电话交换机以耦合 当输入电压超过阈值时，正电源节点连接到负电源节点。 此外，该方法还可以包括在一段时间后停用热插拔开关，并且继续偏置电话交换机。

公开(公告)号：US20210159898A1

公开(公告)日：2021-05-27

申请号：US16694100

申请日：2019-11-25

Applicant: Silicon Laboratories Inc.

Inventor： Alan L. Westwick ,  Peter Onody ,  András V. Horváth ,  Tamás Marozsák

IPC: H03K17/16 ,  H03K17/0812 ,  H02P29/024

Abstract: A gate driver with an integrated Miller clamp controls a high-power drive device coupled to a terminal of a package that houses an integrated circuit coupled to the terminal. A method includes generating an indication of a level of a signal on the terminal with respect to a predetermined signal level. The method includes configuring a variable strength driver of the integrated circuit to charge, discharge, or clamp the terminal based on a control signal and the indication.

公开(公告)号：US11057029B2

公开(公告)日：2021-07-06

申请号：US16694100

申请日：2019-11-25

Applicant: Silicon Laboratories Inc.

Inventor： Alan L. Westwick ,  Peter Onody ,  András V. Horváth ,  Tamás Marozsák

IPC: H03K17/16 ,  H03K17/0812 ,  H02P29/024

Abstract: A gate driver with an integrated Miller clamp controls a high-power drive device coupled to a terminal of a package that houses an integrated circuit coupled to the terminal. A method includes generating an indication of a level of a signal on the terminal with respect to a predetermined signal level. The method includes configuring a variable strength driver of the integrated circuit to charge, discharge, or clamp the terminal based on a control signal and the indication.

公开(公告)号：US09954430B2

公开(公告)日：2018-04-24

申请号：US14800616

申请日：2015-07-15

Applicant: Silicon Laboratories Inc.

Inventor： Vince András Horváth ,  Tamás Marozsák ,  Péter Onódy ,  John Gammel

IPC: H02M1/32 ,  H02M1/36

CPC classification number: H02M1/36 ,  H02H9/041 ,  H02M1/32

Abstract: In some embodiments, powered devices, circuits, and methods are disclosed that may include biasing a hot swap switch to couple a capacitor of a DC-DC converter to negative supply node when an input voltage exceeds a threshold and biasing a telephony switch to couple a positive supply node to a negative supply node when the input voltage exceeds the threshold. Further, the method may further include deactivating the hot swap switch after a period of time, and continuing to bias the telephony switch.

公开(公告)号：US20180348295A1

公开(公告)日：2018-12-06

申请号：US15609996

申请日：2017-05-31

Applicant: Silicon Laboratories Inc.

Inventor： Ernest T. Stroud ,  Stefan N. Mastovich ,  Huanhui Zhan ,  Tamás Marozsák ,  András V. Horváth

IPC: G01R31/28

Abstract: An isolation system includes a transmit die and a receive die coupled by an isolation channel. The transmit die receives diagnostic data at an input terminal and transmits the diagnostic data over an isolation channel to a receive die. The receive die supplies a signal from an internal node in the receive die identified by the diagnostic data to an output terminal of the receive die. Other diagnostic data received by the transmit die causes the transmit die to supply a signal from an internal node in the transmit die to a terminal of the transmit die.

公开(公告)号：US20170012787A1

公开(公告)日：2017-01-12

申请号：US14791969

申请日：2015-07-06

Applicant: Silicon Laboratories Inc.

Inventor： Vince András Horváth ,  Tamás Marozsák ,  Péter Onódy ,  John Gammel

IPC: H04L12/10 ,  H02M3/04

CPC classification number: H04L12/10 ,  H04L12/40045

Abstract: In some embodiments, a powered device includes a powered device circuit, which may include a maintain power signature (MPS) circuit configured to compare a sense current to a reference current. In a first mode, the MPS circuit may be configured to automatically generate an MPS signal when the sense current is less than the reference current.

Abstract translation: 在一些实施例中，供电设备包括供电设备电路，其可以包括被配置为将感测电流与参考电流进行比较的维持功率签名（MPS）电路。 在第一模式中，MPS电路可以被配置为当感测电流小于参考电流时自动生成MPS信号。