-
公开(公告)号：US20230261645A1
公开(公告)日：2023-08-17
申请号：US17651158
申请日：2022-02-15
发明人： Marcus Nuebling , Carmelo Giunta
IPC分类号： H03K17/04 , H03K17/0812
CPC分类号： H03K17/0406 , H03K17/08128
摘要： A drive circuit configured to apply a slew rate controlled drive signal to the control terminal of a power transistor. The drive circuit may be part of a system that includes one or more sub-circuits in which each sub-circuit includes a regulation loop, a matched replica of the power transistor and regulated voltage node. The voltage reference voltage for each sub-circuit connects to the control terminal of the power switch through a buffer circuit to apply a sequence of voltages to the control terminal of the power switch. A switching controller circuit may manage the operation of the one or more sub-circuits so that the drive circuit may output a precisely controlled voltage profile to the control terminal of the power transistor. The circuit may include a second buffer under the control of the switching controller circuit to further manage the operation of the power transistor.
-
公开(公告)号：US20230017307A1
公开(公告)日：2023-01-19
申请号：US17377486
申请日：2021-07-16
发明人： Carmelo Giunta , Marcus Nuebling , Steffen Thiele
IPC分类号： G01R31/52 , H03K17/687 , G01R31/26
摘要： A driver device includes: a voltage terminal; a ground terminal; an output terminal; a first nMOS power transistor having a drain electrically connected to the voltage terminal, a source electrically connected to the output terminal, and a gate; an overvoltage protection circuit configured to limit a gate-to-source voltage of the first nMOS power transistor in a normal operating mode for the driver device; a pulldown circuit configured to force the first nMOS power transistor off in a stress test mode for the driver device; and a blocking circuit configured to block current flow from the output terminal to the ground terminal through the overvoltage protection circuit and the pulldown circuit in the stress test mode. A method of stress testing the driver device is also described.
-
公开(公告)号：US11706056B2
公开(公告)日：2023-07-18
申请号：US17208987
申请日：2021-03-22
发明人： Marcus Nuebling
CPC分类号： H04L25/0266 , H04B5/005 , H04B5/0012
摘要： In some examples, a device includes a capacitor arranged across the galvanic isolation barrier, where the capacitor is configured to communicate a single-ended signal from a first voltage domain to a second voltage domain. The device also includes a high-pass filter arranged in the second voltage domain and configured to receive the single-ended signal from the capacitor. The device further includes a low-pass filter arranged in the second voltage domain and coupled between the high-pass filter and a low-impedance node. The high-pass filter is coupled between the capacitor, the low-pass filter, and the low-impedance node, and the low-pass filter is configured to generate a differential signal.
-
公开(公告)号：US20220311344A1
公开(公告)日：2022-09-29
申请号：US17655279
申请日：2022-03-17
发明人： Marcus Nuebling
IPC分类号： H02M3/335
摘要： In accordance with an embodiment, an oscillator circuit includes: a main current path coupled between a supply voltage terminal and a ground terminal, the main current path including a parallel resonant circuit, a load current path of a first transistor and a load current path of a second transistor. The parallel resonant circuit includes an inductor formed by a primary winding of a transformer, and a first capacitor; a terminal of the inductor is connected to the ground terminal; the load current path of the first transistor is coupled between the parallel resonant circuit and the load current path of the second transistor; and the parallel resonant circuit is coupled to a control electrode of the second transistor via a feedback path that includes a second capacitor.
-
公开(公告)号：US20220285927A1
公开(公告)日：2022-09-08
申请号：US17189607
申请日：2021-03-02
IPC分类号： H02H1/00 , H03K17/082
摘要： This disclosure is directed to circuits and techniques for protecting a power switch when the power switch is turned ON. A driver circuit may detect whether the power switch is in a desaturation mode or an overcurrent state based on a signal at a detection pin, and disable the power switch in response to detecting that the power switch is in the desaturation mode or the overcurrent state. In addition, the driver circuit may detect whether the power switch is trending towards a safe operating area (SOA) limit of the power switch based on a rate of change of the signal, and disable the power switch in response to detecting that the power switch is trending towards the SOA limit.
-
公开(公告)号：US11063583B2
公开(公告)日：2021-07-13
申请号：US15847590
申请日：2017-12-19
发明人： Marcus Nuebling , Tom Roewe
IPC分类号： H03K17/081 , H02M3/07 , H03K5/1532 , H03K17/12 , H02M1/32 , H02M1/088 , H03K17/082 , H02M1/00
摘要： A multi-sense circuit includes a transistor circuit having sense nodes and a gate node, a peak detector having inputs coupled to the sense nodes of the transistor circuit and an output, and a control circuit having a gate control node coupled to the gate node of the transistor circuit and an overcurrent protection node coupled to the output of the peak detector.
-
公开(公告)号：US20140269126A1
公开(公告)日：2014-09-18
申请号：US13834422
申请日：2013-03-15
IPC分类号： G11C7/12
CPC分类号： G11C7/12 , G06F3/05 , G11C11/412 , G11C27/02
摘要： A circuit arrangement is provided, including a storage circuit and an output circuit. The storage circuit is configured to provide a first output signal and a second output signal. The output circuit is configured to receive the first output signal and the second output signal and configured to provide an output signal having one of a first signal level and a second signal level, and to only switch from the first signal level to the second signal level if the difference between the first output signal and the second output signal exceeds a threshold. The circuit arrangement is configured to hold the first output signal and the second output signal independent of a difference between the first output signal and the second output signal after the switching has been carried out.
摘要翻译： 提供了一种电路装置，包括存储电路和输出电路。 存储电路被配置为提供第一输出信号和第二输出信号。 输出电路被配置为接收第一输出信号和第二输出信号，并且被配置为提供具有第一信号电平和第二信号电平之一的输出信号，并且仅从第一信号电平切换到第二信号电平 如果第一输出信号和第二输出信号之间的差超过阈值。 电路装置被配置为在执行切换之后，保持与第一输出信号和第二输出信号之间的差无关的第一输出信号和第二输出信号。
-
公开(公告)号：US20220303160A1
公开(公告)日：2022-09-22
申请号：US17208987
申请日：2021-03-22
发明人： Marcus Nuebling
摘要： In some examples, a device includes a capacitor arranged across the galvanic isolation barrier, where the capacitor is configured to communicate a single-ended signal from a first voltage domain to a second voltage domain. The device also includes a high-pass filter arranged in the second voltage domain and configured to receive the single-ended signal from the capacitor. The device further includes a low-pass filter arranged in the second voltage domain and coupled between the high-pass filter and a low-impedance node. The high-pass filter is coupled between the capacitor, the low-pass filter, and the low-impedance node, and the low-pass filter is configured to generate a differential signal.
-
公开(公告)号：US20210134508A1
公开(公告)日：2021-05-06
申请号：US17074473
申请日：2020-10-19
发明人： Marcus Nuebling , Jaafar Mejri
摘要： A circuit is provided that comprises a transformer having a first coil, which is arranged on a substrate, a second coil, which is arranged above the first coil on the substrate, and a dielectric between the first coil and the second coil. The circuit furthermore comprises a resonant circuit, which is couplable to the first coil and/or the second coil to form a resonant loop, wherein a measure of a characteristic frequency of the resonant loop and/or a measure of a power consumption of the resonant loop is able to be tapped off at an output of the resonant circuit.
A corresponding method is also provided.-
公开(公告)号：US20210123970A1
公开(公告)日：2021-04-29
申请号：US17068711
申请日：2020-10-12
发明人： Marcus Nuebling , Jaafar Mejri
IPC分类号： G01R31/28 , H01L23/58 , H01L23/522 , H01F27/28
摘要： A circuit is provided, comprising a transformer having a first coil that is arranged on a substrate and a second coil that is arranged on the substrate above the first coil, and a dielectric between the first coil and the second coil. The circuit furthermore comprises a guard ring around the transformer. The circuit furthermore comprises a diagnostic circuit (55) that is configured so as to ground the guard ring in a normal operating mode and to measure a measurement voltage or a measurement current at a measurement impedance between the guard ring and the ground potential in a diagnostic operating mode.
-
-
-
-
-
-
-
-
-
搜索结果
32 条记录 (耗时 0.016 秒)
