Interleaved boost converter with holdup time extension

    公开(公告)号:US10367411B2

    公开(公告)日:2019-07-30

    申请号:US15849047

    申请日:2017-12-20

    Inventor: Francis Martin

    Abstract: A power factor correction device for providing tolerance to a fault condition in an input supply can include a first boost circuit, a second boost circuit, and a controller circuit. The controller circuit can interleave operation of the first boost circuit and operation of the second boost circuit such as to generate an output voltage when the input supply is received at the power factor correction device. The controller circuit can route, in response to the fault condition, a stored supply of the second boost circuit to an input of the first boost circuit. The controller circuit can control the first boost circuit to maintain the output voltage.

    Method to improve latency in an ethernet PHY device

    公开(公告)号:US10277433B1

    公开(公告)日:2019-04-30

    申请号:US15813905

    申请日:2017-11-15

    Abstract: This disclosure relates to data communication networks. An example data communication apparatus includes physical (PHY) layer circuitry that includes transceiver circuitry, decoder circuitry, and a signal analysis unit. The transceiver circuitry receives encoded data symbols via a network link. The received encoded data symbols are encoded using trellis coded modulation (TCM). The decoder circuitry decodes the received encoded data symbols using maximum-likelihood (ML) decoding to map a received symbol sequence to an allowed symbol sequence using a trace-back depth. A trace-back depth value is a number of symbols in the received symbol sequence used by the ML decoding to identify the allowed symbol sequence from the received symbol sequence. The signal analysis unit determines one or more link statistics of the network link, and sets the trace-back depth value according to the one or more link statistics.

    Tank circuit and frequency hopping for isolators

    公开(公告)号:US10164614B2

    公开(公告)日:2018-12-25

    申请号:US15087723

    申请日:2016-03-31

    Abstract: Embodiments of the present disclosure may provide a circuit comprising a tank circuit. The tank circuit may include an inductor having a pair of terminals, a first pair of transistors, and a first pair of capacitors. Each transistor may be coupled between a respective terminal of the inductor and a reference voltage along a source-to-drain path of the transistor. Each capacitor may be provided in a signal path between an inductor terminal coupled to a respective first transistor in the first pair and a gate of a second transistor in the first pair.

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