COMMUNICATING ACROSS GALVANIC ISOLATION, FOR EXAMPLE, IN A POWER CONVERTER

    公开(公告)号:US20180198444A1

    公开(公告)日:2018-07-12

    申请号:US15917437

    申请日:2018-03-09

    摘要: A signal transmission system for communicating across galvanic isolation includes a magnetic coupling having a transmitter-side inductor and a receiver-side inductor. The transmitter is coupled to the transmitter-side inductor, is referenced to a first potential, and includes a pulse generator coupled to output to the transmitter-side inductor a first state representation that represents a first logic state with multiple transitions, and a second state representation that represents a second logic state with multiple transitions. The pulse generator in outputting the first state representation is coupled to output a first information portion that includes the multiple transitions of the first state representation, and a first initial delay portion having a duration longer than a duration of the multiple transitions of the second state representation.

    Communicating across galvanic isolation, for example, in a power converter

    公开(公告)号:US09948294B2

    公开(公告)日:2018-04-17

    申请号:US15179871

    申请日:2016-06-10

    摘要: A signal transmission system for communicating across galvanic isolation. The signal transmission system includes first circuitry referenced to a first potential, the first circuitry comprising signal transmission circuitry, second circuitry referenced to a second potential and galvanically isolated from the first circuitry, the second circuitry comprising signal reception circuitry, and a magnetic coupling between the first circuitry to the second circuitry across the galvanic isolation, the magnetic coupling comprising a transmitter-side inductor and a receiver-side inductor. The signal transmission circuitry can include a source coupled to output, to the transmitter-side inductor of the magnetic coupling, a first state representation that represents a first logic state with multiple transitions, the first state representation including at least a first upward transition, a first downward transition, a second upward transition, and a second downward transition.

    RECEIVER CIRCUIT
    3.
    发明申请
    RECEIVER CIRCUIT 有权
    接收电路

    公开(公告)号:US20170012672A1

    公开(公告)日:2017-01-12

    申请号:US15184583

    申请日:2016-06-16

    IPC分类号: H04B5/00 H03F3/193 H04B1/16

    摘要: A data communications receiver including a receiver coil, a first amplification stage coupled to the receiver coil, the first amplification circuitry to differentially amplify at least part of signal received by the receiver coil relative to a threshold, a second amplification stage coupled to receive the differentially amplified signal from the first amplification stage, the second amplification stage comprising a current mirror, and hysteretic level shifting circuitry to shift a level of part of the signal received by the receiver coil, the threshold or part of the signal received by the receiver coil and the threshold such that, in response to the at least part of the signal received by the receiver coil having crossed the threshold, a threshold crossing in the other direction is delayed.

    摘要翻译: 一种数据通信接收机,包括接收器线圈,耦合到接收器线圈的第一放大级,第一放大电路,以差分放大由接收器线圈相对于阈值接收的信号的至少一部分;耦合以接收差分的第二放大级 来自第一放大级的放大信号,第二放大级包括电流镜和滞后电平移位电路,用于移位由接收器线圈接收的信号的一部分电平,由接收器线圈接收的阈值或部分信号;以及 所述阈值使得响应于所述接收器线圈接收到的信号的所述至少部分已经越过所述阈值,所述另一方向上的阈值交叉被延迟。

    COMMUNICATING ACROSS GALVANIC ISOLATION, FOR EXAMPLE, IN A POWER CONVERTER
    6.
    发明申请
    COMMUNICATING ACROSS GALVANIC ISOLATION, FOR EXAMPLE, IN A POWER CONVERTER 有权
    例如,在电源转换器中进行交流隔离隔离

    公开(公告)号:US20170012622A1

    公开(公告)日:2017-01-12

    申请号:US15179871

    申请日:2016-06-10

    摘要: A signal transmission system for communicating across galvanic isolation. The signal transmission system includes first circuitry referenced to a first potential, the first circuitry comprising signal transmission circuitry, second circuitry referenced to a second potential and galvanically isolated from the first circuitry, the second circuitry comprising signal reception circuitry, and a magnetic coupling between the first circuitry to the second circuitry across the galvanic isolation, the magnetic coupling comprising a transmitter-side inductor and a receiver-side inductor. The signal transmission circuitry can include a source coupled to output, to the transmitter-side inductor of the magnetic coupling, a first state representation that represents a first logic state with multiple transitions, the first state representation including at least a first upward transition, a first downward transition, a second upward transition, and a second downward transition.

    摘要翻译: 一种用于跨电隔离通信的信号传输系统。 信号传输系统包括参考第一电位的第一电路,第一电路包括信号传输电路,参考第二电位的第二电路和与第一电路电隔离的第二电路,第二电路包括信号接收电路,以及在第 跨电流隔离的第二电路的第一电路,磁耦合包括发射机侧电感器和接收器侧电感器。 信号传输电路可以包括耦合到输出到磁耦合的发射机侧电感器的源,其表示具有多个转换的第一逻辑状态的第一状态表示,第一状态表示包括至少第一向上转换, 第一向下转变,第二向上转变和第二向下转变。

    RECEIVER CIRCUIT
    7.
    发明申请
    RECEIVER CIRCUIT 审中-公开

    公开(公告)号:US20170373722A1

    公开(公告)日:2017-12-28

    申请号:US15699803

    申请日:2017-09-08

    摘要: An analog receiver frontend includes a first amplification circuit coupled to receive an input signal. The first amplification stage is coupled to amplify a difference between the input signal and a threshold to generate the first signal. A second amplification circuit is coupled to receive the first signal from the first amplification circuit. The second amplification circuit is coupled to amplify the first signal to generate a second signal. An output circuit is coupled to receive the second signal from the second amplification circuit. The output circuit is coupled to output a recovered signal. The recovered signal is a pulse waveform of high and low sections. An input hysteresis circuit is coupled to the output circuit to receive the recovered signal and generate a hysteresis signal. One or both of the input signal and the threshold are level shifted by the hysteresis signal in response to the recovered signal.