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公开(公告)号：US20240305274A1
公开(公告)日：2024-09-12
申请号：US18179482
申请日：2023-03-07
CPC分类号： H03H11/02 , H03K5/01 , H03K19/21 , H03K2005/00013
摘要： In some examples, an apparatus includes an isolating transformer and a grounding circuit. The isolating transformer has first and second coils separated by an isolation barrier, the first coil having first and second terminals. The grounding circuit is coupled to the first and second terminals. The grounding circuit is configured to couple the first and second terminals to a ground terminal during a first time period. The grounding circuit is also configured to decouple the first and second terminals from the ground terminal during a second time period.
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公开(公告)号：US20200382057A1
公开(公告)日：2020-12-03
申请号：US16998526
申请日：2020-08-20
摘要： A digital isolator comprising a set of bipolar transistors and an inductor capacitor (LC) oscillator coupled to the set of bipolar transistors in series, wherein the LC oscillator is configured to be turned on and off based on the current applied to the set of bipolar transistors or the LC oscillator and generate a set of differential signals based on the current flowing through the set of bipolar transistors and mimicking the operational characteristics of an optocoupler.
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3.发明申请公开(公告)号：US20210036735A1
公开(公告)日：2021-02-04
申请号：US17076275
申请日：2020-10-21
摘要： An inductively coupled multi-channel digital isolator where the transmitter and receiver inductive loops of a given channel are coplanar. In the case where two adjacent channels flow data in opposite directions, the receiver inductive loops of a given channel include a large, generally conventional loop portion and a small loop portion that is located inside the transmitter inductive loops of the adjacent channels. The sizes of the small loop portion and the conventional loop portion are generally in the ratio of the magnetic flux in the conventional loop portion to the magnetic flux in the transmitter inductive loop. This size relationship results in the voltage of the small loop portion being very close but opposite in sign to the voltage in the conventional loop portion. As a result, there is minimal crosstalk from the transmitter inductive loop of one channel to the receiver inductive loop of the adjacent channel.
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公开(公告)号：US20200119689A1
公开(公告)日：2020-04-16
申请号：US16223545
申请日：2018-12-18
摘要： A digital isolator comprising a set of bipolar transistors and an inductor capacitor (LC) oscillator coupled to the set of bipolar transistors in series, wherein the LC oscillator is configured to be turned on and off based on the current applied to the set of bipolar transistors or the LC oscillator and generate a set of differential signals based on the current flowing through the set of bipolar transistors and mimicking the operational characteristics of an optocoupler.
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公开(公告)号：US20240195412A1
公开(公告)日：2024-06-13
申请号：US18194289
申请日：2023-03-31
IPC分类号： H03K17/687
CPC分类号： H03K17/6874
摘要： A circuit includes a switch and a switch controller. The switch has a first terminal coupled to a voltage supply terminal, a second terminal coupled to a ground terminal and to a first bondwire terminal. The switch controller includes: a first resistor, a second resistor, a capacitor, and a buffer circuit. The first resistor has a first terminal coupled to a second bondwire terminal. The second resistor has a first terminal coupled to the voltage supply terminal and has a second terminal coupled to a second terminal of the first resistor. The capacitor has a first terminal coupled to the ground terminal and to the first bondwire terminal and has a second terminal coupled to second terminals of the first and second resistors. The buffer circuit has a terminal coupled to the second terminal of the capacitor and has an output terminal coupled to the control terminal of the switch.
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公开(公告)号：US20240105382A1
公开(公告)日：2024-03-28
申请号：US17954735
申请日：2022-09-28
CPC分类号： H01F27/303 , H01F27/306 , H01F27/324
摘要： A transformer includes a substrate and a first metal layer having a first inductor having a first center tap. A second metal layer includes a second inductor having a second center tap, and the second metal layer includes a bond pad. A third metal layer includes a first conductor electrically connecting the bond pad to the first center tap, and the third metal layer includes a second conductor electrically connecting the bond pad and the first center tap. The third metal layer is situated between the substrate and the first metal layer, and the first metal layer is situated between the third metal layer and the second metal layer.
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公开(公告)号：US20200335436A1
公开(公告)日：2020-10-22
申请号：US16585393
申请日：2019-09-27
IPC分类号： H01L23/522 , H01L49/02 , H01L23/528 , H01L23/00
摘要： An integrated semiconductor device having a metallic element formed between a capacitor with and a doped region.
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公开(公告)号：US20240006273A1
公开(公告)日：2024-01-04
申请号：US17854526
申请日：2022-06-30
IPC分类号： H01L23/495 , H01L21/48 , H01L23/00
CPC分类号： H01L23/49541 , H01L23/49575 , H01L21/4821 , H01L24/48 , H01L2224/48245 , H01L2924/1431 , H01L2924/30107
摘要： An example packaged IC includes a lead frame having a supply pin and a ground pin. The supply pin includes first and second supply leads extending from a proximal portion of the supply pin. The ground pin includes first and second ground leads extending from a proximal portion of the ground pin. A first IC network has a first supply terminal coupled to the first supply lead via a first conductor (e.g., bond wire or bump bond). The first IC network also has a first ground terminal coupled to the first ground lead via a second conductor. A second IC network has a second supply terminal coupled to the second supply lead via a third conductor. The second IC network also has a second ground terminal coupled to the second ground lead via a fourth conductor.
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9.发明申请公开(公告)号：US20200279602A1
公开(公告)日：2020-09-03
申请号：US16793447
申请日：2020-02-18
IPC分类号： G11C11/406 , G11C11/409 , G11C7/22 , G11C7/10
摘要： An encoding and transmitting system for a digital isolator system includes a transmitter for transmitting combined edge indicator signals through an isolation barrier, an encoder for generating the combined edge indicator signals based on first and second signals, a refresh clock generator for generating a refresh clock signal based on the first signal, and a refresh edge generator for masking at least a portion of the refresh clock signal, such that the portion of the refresh clock signal is not reflected in the second signal. The isolation barrier of the digital isolator system may be a capacitive isolation barrier for galvanically isolating a receiver from the transmitter. If desired, the refresh edge generator may include a refresh mask generator, one or more logic gates, and a glitch filter. A method of operating a digital isolator system is also described.
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10.发明申请公开(公告)号：US20200007189A1
公开(公告)日：2020-01-02
申请号：US16021175
申请日：2018-06-28
摘要： An inductively coupled multi-channel digital isolator where the transmitter and receiver inductive loops of a given channel are coplanar. In the case where two adjacent channels flow data in opposite directions, the receiver inductive loops of a given channel include a large, generally conventional loop portion and a small loop portion that is located inside the transmitter inductive loops of the adjacent channels. The sizes of the small loop portion and the conventional loop portion are generally in the ratio of the magnetic flux in the conventional loop portion to the magnetic flux in the transmitter inductive loop. This size relationship results in the voltage of the small loop portion being very close but opposite in sign to the voltage in the conventional loop portion. As a result, there is minimal crosstalk from the transmitter inductive loop of one channel to the receiver inductive loop of the adjacent channel.
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