公开(公告)号：US20200235712A1

公开(公告)日：2020-07-23

申请号：US16745511

申请日：2020-01-17

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Jeffrey A. MAY ,  Eric J. KING ,  Christian LARSEN ,  Eric EKLUND

IPC: H03G3/00 ,  H02M3/04 ,  H03G3/30 ,  H03F3/20 ,  H04R3/00

Abstract: A power converter may include an input for receiving an input signal and output for generating an intermediate signal that is a power converted signal from the input signal wherein the intermediate signal is determined based on various parameters of a signal path that utilizes the intermediate signal, wherein the various parameters comprise one or more of the following: a peak output signal of the signal path, energy requested over a period of time by the signal path, available energy from an energy source to the power converter, stored energy at an output of the power converter, and stored energy of a battery for providing electrical energy at the input.

公开(公告)号：US20230344388A1

公开(公告)日：2023-10-26

申请号：US18302219

申请日：2023-04-18

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Kemal S. DEMIRCI ,  Tian ZHAO ,  Jeffrey A. MAY ,  Theodore M. BURK ,  Thomas H. HOFF ,  Edward M. VEESER

IPC: H03F1/52 ,  H03F3/183

CPC classification number: H03F1/52 ,  H03F3/183 ,  H03F2200/03 ,  H03F2200/426

Abstract: This application relates to methods and apparatus for power limiting for amplifiers. An amplifier is configured to receive an input supply voltage and to draw, in use, an amplifier input current resulting in an amplifier input power. A power limiter is configured to monitor an indication of the amplifier input power, determine a first signal limit based on said indication of the amplifier input power and a pre-set limit and apply regulation to the input signal to provide a regulated input signal for input to the amplifier that does not exceed the first signal limit.

公开(公告)号：US20230336068A1

公开(公告)日：2023-10-19

申请号：US18337223

申请日：2023-06-19

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Jeffrey A. MAY ,  Eric J. KING ,  Christian LARSEN ,  Eric EKLUND

IPC: H02M1/42 ,  H02M1/00 ,  H02M3/158 ,  H02J7/00

CPC classification number: H02M1/0019 ,  H02J7/0063 ,  H02M1/42 ,  H02M3/1582 ,  H04R1/1091

Abstract: A power converter system may include a first power converter configured to couple via its input to a power source and configured to convert an input voltage provided by the power source to an intermediate voltage, a second power converter coupled via its input to an output of the first power converter and configured to convert the intermediate voltage to a regulated output voltage, a capacitor coupled at one of its terminals to an electrical node of the intermediate voltage. Based on one or more electrical parameters of the power converter, the second power converter is controlled to regulate the regulated output voltage at a substantially constant level and the first power converter is controlled to control the intermediate voltage to maintain the intermediate voltage between a maximum voltage and a minimum voltage and regulate an input current drawn from the power source at a substantially constant level.

公开(公告)号：US20170078213A1

公开(公告)日：2017-03-16

申请号：US15226197

申请日：2016-08-02

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Jeffrey A. MAY ,  Vivek JINDAL ,  Anu CHAKRAVARTY ,  Terence C. BOWNESS ,  Christian LARSEN

IPC: H04L12/863 ,  H04L12/40 ,  H04L29/08

CPC classification number: H04L47/6225 ,  G06F13/372 ,  H04L12/40 ,  H04L67/10 ,  Y02D10/14

Abstract: A distributed network system may include a shared communication bus that operates in accordance with a communication protocol and a plurality of devices coupled to the shared communication bus. The communication protocol may define periods of time and an order by which each of the plurality of devices actively transmit data on the shared communication bus such that only one of the plurality of devices actively transmits data on the shared communication bus at a time to a remaining number of the plurality of devices through the shared communication bus. When the remaining number of the plurality of devices are not actively transmitting data, the remaining number of the plurality of devices may receive data via the shared communication bus so that bi-directional communication is established among the plurality of devices on the shared communication bus.

Abstract translation: 分布式网络系统可以包括根据通信协议操作的共享通信总线和耦合到共享通信总线的多个设备。 通信协议可以定义时间段和多个设备中的每个设备在共享通信总线上主动发送数据的顺序，使得多个设备中的仅一个设备一次在共享通信总线上主动发送数据到剩余的 通过共享通信总线的多个设备的数量。 当多个设备的剩余数量不是主动发送数据时，多个设备的剩余数量可以经由共享通信总线接收数据，从而在共享通信总线上的多个设备之间建立双向通信。