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公开(公告)号：US20150085403A1
公开(公告)日：2015-03-26
申请号：US14036176
申请日：2013-09-25
Applicant: Silicon Laboratories Inc.
Inventor： Paulo Santos , Tufan Karalar , Michael J. Mills , Ross Sabolcik , Rudye McGlothlin , Michael L. Duffy , András Vince Horvath
CPC classification number: H02K11/20 , H02H7/0822 , H02H9/001 , H02P27/06 , H02P29/0241
Abstract: An apparatus for controlling a high-power drive device external to a package of a motor drive circuit includes a motor drive circuit. The motor drive circuit includes a driver to control the high-power drive device based on a first reference voltage, a second reference voltage, and a control signal based on a received control signal. A fault circuit generates a failure indicator based on a voltage across terminals of the high-power drive device. A fault condition is based on the failure indicator. A first terminal coupled to the driver charges a node of the high-power drive device over a first length of time in response to an absence of the fault condition and a first level of the control signal. A second terminal coupled to the driver discharges the node over a second length of time different from the first length of time.
Abstract translation: 用于控制电动机驱动电路的封装外部的大功率驱动装置的装置包括电动机驱动电路。 马达驱动电路包括基于第一参考电压，第二参考电压和基于所接收的控制信号的控制信号来控制高功率驱动装置的驱动器。 故障电路基于大功率驱动装置的端子上的电压产生故障指示器。 故障情况基于故障指示器。 耦合到驱动器的第一端子响应于不存在故障条件和控制信号的第一电平，在第一时间长度上对高功率驱动装置的节点充电。 耦合到驱动器的第二端子在不同于第一时间长度的第二时间长度上排出节点。
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公开(公告)号：US10917081B1
公开(公告)日：2021-02-09
申请号：US16815435
申请日：2020-03-11
Applicant: Silicon Laboratories Inc.
Inventor： Long Nguyen , Ion C. Tesu , Michael L. Duffy , John N. Wilson
IPC: H03K17/08 , H03K17/0812 , H02M1/08 , H03K17/18 , H03K17/082 , H03K17/081 , H03K17/16
Abstract: An apparatus controls a high-power drive device external to a package of a gate driver circuit. A first circuit charges the control node over a first length of time in response to a first signal through the first node indicating an absence of a fault condition and a first level of a control signal. A second circuit discharges the control node over a second length of time in response to a second signal through the second node indicating the absence of the fault condition and a second level of a control signal. A third circuit includes a current amplifier and is configured as a soft shutdown path to discharge the control node over a third length of time in response to the first signal through the first node indicating a presence of the fault condition. The third length of time is different from the second length of time.
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公开(公告)号：US09698654B2
公开(公告)日：2017-07-04
申请号：US14036176
申请日：2013-09-25
Applicant: Silicon Laboratories Inc.
Inventor： Paulo Santos , Tufan Karalar , Michael J. Mills , Ross Sabolcik , Rudye McGlothlin , Michael L. Duffy , András Vince Horvath
CPC classification number: H02K11/20 , H02H7/0822 , H02H9/001 , H02P27/06 , H02P29/0241
Abstract: An apparatus for controlling a high-power drive device external to a package of a motor drive circuit includes a motor drive circuit. The motor drive circuit includes a driver to control the high-power drive device based on a first reference voltage, a second reference voltage, and a control signal based on a received control signal. A fault circuit generates a failure indicator based on a voltage across terminals of the high-power drive device. A fault condition is based on the failure indicator. A first terminal coupled to the driver charges a node of the high-power drive device over a first length of time in response to an absence of the fault condition and a first level of the control signal. A second terminal coupled to the driver discharges the node over a second length of time different from the first length of time.
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