Patents by Inventor Baoxing Chen

Baoxing Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11152975
    Abstract: Isolators for high frequency signals transmitted between two circuits configured to operate at different voltage domains are provided. The isolators may include resonators capable of operating at high frequencies with high transfer efficiency, high isolation rating, and a small substrate footprint. In some embodiments, the isolators may operate at a frequency not less than 20 GHz, not less than 30 GHz, not less than 65 GHz, or between 20 GHz and 100 GHz, including any value or range of values within such range. The isolators may include inductive loops with slits and capacitors integrally formed at the slits. The sizes and shapes of the inductive loops and capacitors may be configured to control the values of equivalent inductances and capacitances of the isolators. The isolators are compatible to different fabrication processes including, for example, micro-fabrication and PCB manufacture processes.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: October 19, 2021
    Assignee: Analog Devices International Unlimited Company
    Inventors: Paul Lambkin, Baoxing Chen, Jinglin Xu, Ramji Lakshmanan
  • Publication number: 20210249185
    Abstract: Micro-scale devices, such as transformers and capacitors, having a floating conductive layer are disclosed. A floating conductive layer may be disposed in an insulator layer and can reduce a maximum electric field between a first planar conductor and a second planar conductor of a micro-scale passive device. Reduction of a maximum electric field between a first planar conductor and a second planar conductor can reduce undesirable effects on electrical components.
    Type: Application
    Filed: February 10, 2020
    Publication date: August 12, 2021
    Applicant: Analog Devices International Unlimited Company
    Inventors: Patrick M. McGuinness, Paul Lambkin, Laurence B. O'Sullivan, Bernard Patrick Stenson, Steven Tanghe, Baoxing Chen
  • Publication number: 20210239405
    Abstract: A heat transfer element is disclosed. The heat transfer element can be configured to directly bond to a metal surface of an element. The heat transfer element can include a chamber that is defined at least in part by a housing that has a metal portion. The heat transfer element can also include a phase change material disposed in the chamber. The phase change material can be in thermal communication with the metal portion. The Heat transfer element can be bonded to the element to define a bonded structure.
    Type: Application
    Filed: January 30, 2020
    Publication date: August 5, 2021
    Inventors: Marc T. Dunham, Baoxing Chen
  • Patent number: 11044022
    Abstract: Isolators having a back-to-back configuration for providing electrical isolation between two circuits are described, in which multiple isolators formed on a single, monolithic substrate are connected in series to achieve a higher amount of electrical isolation for a single substrate than for isolators formed on separate substrates connected in series. Discrete dielectric regions positioned between isolator components forming an isolator provide electrical isolation between the isolator components as well as between the isolators formed on the substrate. The back-to-back isolator may provide one or more communication channels for transfer of information and/or power between different circuits.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: June 22, 2021
    Assignee: Analog Devices Global Unlimited Company
    Inventors: Laurence B. O'Sullivan, Shane Geary, Baoxing Chen, Bernard Patrick Stenson, Paul Lambkin, Patrick M. McGuinness, Stephen O'Brien, Patrick J. Murphy
  • Patent number: 11018660
    Abstract: Power isolators with multiple selectable feedback modes are described. The power isolators may transfer a power signal from a primary side to a second side. A feedback signal may be provided from the secondary side to the primary side to control generation of the power signal on the primary side. In this manner, the power signal provided to the secondary side may be maintained within desired levels. The feedback signal may be generated by feedback circuitry configurable to operate in different modes, such that the feedback signal may be of differing types depending on which feedback mode is implemented.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: May 25, 2021
    Assignee: Analog Devices Global Unlimited Company
    Inventors: Yue Zhuo, Wenhui Qin, Yingjie Guo, Shaoyu Ma, Tianting Zhao, Baoxing Chen
  • Publication number: 20210119670
    Abstract: Isolators for high frequency signals transmitted between two circuits configured to operate at different voltage domains are provided. The isolators may include resonators capable of operating at high frequencies with high transfer efficiency, high isolation rating, and a small substrate footprint. In some embodiments, the isolators may operate at a frequency not less than 20 GHz, not less than 30 GHz, not less than 65 GHz, or between 20 GHz and 100 GHz, including any value or range of values within such range. The isolators may include inductive loops with slits and capacitors integrally formed at the slits. The sizes and shapes of the inductive loops and capacitors may be configured to control the values of equivalent inductances and capacitances of the isolators. The isolators are compatible to different fabrication processes including, for example, micro-fabrication and PCB manufacture processes.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 22, 2021
    Applicant: Analog Devices International Unlimited Company
    Inventors: Paul Lambkin, Baoxing Chen, Jinglin Xu, Ramji Lakshmanan
  • Publication number: 20210065955
    Abstract: A micro-isolator is described. The micro-isolator may include a first isolator element, a second isolator element, and a first dielectric material separating the first isolator element from the second isolator element. A second dielectric material may completely or partly encapsulate the second isolator element, or may be present at outer corners of the second isolator element. The second dielectric material may have a larger bandgap than the first dielectric material, and its configuration may reduce electrostatic charge injection into the first dielectric material. The micro-isolator may be formed using microfabrication techniques.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 4, 2021
    Applicant: Analog Devices Global Unlimited Company
    Inventors: Paul Lambkin, Patrick J. Murphy, Bernard Patrick Stenson, Laurence B. O'Sullivan, Stephen O'Brien, Shane Geary, Baoxing Chen, Sombel Diaham
  • Publication number: 20200343037
    Abstract: Micro-scale planar-coil transformers including one or more shields are disclosed. The one or more shields can block most common-mode current from crossing from one side to another side of a transformer. Reduction of common-mode current crossing the transformer results in reduction of dipole radiation, which is the main component of electromagnetic interference (EMI) in some transformers.
    Type: Application
    Filed: April 26, 2019
    Publication date: October 29, 2020
    Applicant: Analog Devices International Unlimited Company
    Inventors: Baoxing Chen, Wenhui Qin, Yuanyuan Zhao, Xin Yang, Shaoyu Ma
  • Publication number: 20200243240
    Abstract: An integrated circuit fabricated with a number of layer may include a substrate, a transformer having a first winding, a second winding and a magnetic core. The first winding and the second winding may surround the magnetic core. The transformer may be disposed above a first side of the substrate. A flux conductor may be disposed on a second surface of the substrate opposite to the first surface.
    Type: Application
    Filed: April 3, 2020
    Publication date: July 30, 2020
    Applicant: Analog Devices, Inc.
    Inventor: Baoxing Chen
  • Patent number: 10680526
    Abstract: Isolated DC-DC converters are described. A DC-DC converter is a device which converts a direct current (DC) signal from one voltage to another. An isolated DC-DC converter performs the conversion across an electrical isolation barrier separating two voltage domains. The signal converted from one voltage to another, and transferred from one voltage domain to another, may be a power signal. Described are isolated DC-DC converters which transfer a power signal from one voltage domain to another via an isolator, and a power feedback signal back across the isolator. The isolator is a transformer in some situations.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: June 9, 2020
    Assignee: Analog Devices Global
    Inventors: Yue Zhuo, Baoxing Chen, Xin Yang, Tianting Zhao
  • Patent number: 10672968
    Abstract: An embodiment of a thermoelectric device may include a plurality of thermoelectric cells disposed between first and second planes. Each of the thermoelectric cells may include a thermoelectric element formed from a thermoelectric material of a single semiconductor type, the thermoelectric element including a first end, a second end, and a portion extending from the first end to the second end, the portion extending from the first end to the second end including at least two surfaces that face each other; and at least one conductive element electrically connected to and extending away from the second end of the thermoelectric element toward the first end of the thermoelectric element of another thermoelectric cell. Each thermoelectric cell also may further include an insulating element disposed between the at least two surfaces of the thermoelectric element and between portions of the at least one conductive element.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: June 2, 2020
    Assignee: Analog Devices Global
    Inventors: Patrick M. McGuinness, Helen Berney, Jane Cornett, William Alan Lane, Baoxing Chen
  • Publication number: 20200112291
    Abstract: Isolators and methods for operating the same are described for opto-isolators with improved common mode transient immunity (CMTI). In some embodiments, a pair of photodetectors are provided in the opto-isolator and configured to generate photocurrents of opposite signs or directions in response to a light signal. Photocurrents from the pair of photodetectors are combined in a differential manner to represent data transmitted in a light signal, while common mode transient noise at the two photodetectors is attenuated or eliminated.
    Type: Application
    Filed: October 9, 2018
    Publication date: April 9, 2020
    Applicant: Analog Devices, Inc.
    Inventors: Check F. Lee, Baoxing Chen
  • Patent number: 10597286
    Abstract: A monolithic vapor chamber heat dissipating device uses a phase change liquid and one or more wicks to dissipate heat from a heat-generating system. The phase change liquid and one or more wicks may be directly coupled to the heat-generating system, or may be coupled to an intermediate evaporator substrate. The phase change liquid vaporizes as it absorbs heat from the heat-generating system. When the vapor rises and encounters a condenser substrate, the vapor condenses and transfers the heat to the condenser substrate. The condensed vapor is drawn by gravity and the one or more wicks to the phase change liquid coupled to the heat-generating system.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: March 24, 2020
    Assignee: Analog Devices Global
    Inventors: Baoxing Chen, William Allan Lane, Marc T. Dunham
  • Publication number: 20200083874
    Abstract: Power isolators with multiple selectable feedback modes are described. The power isolators may transfer a power signal from a primary side to a second side. A feedback signal may be provided from the secondary side to the primary side to control generation of the power signal on the primary side. In this manner, the power signal provided to the secondary side may be maintained within desired levels. The feedback signal may be generated by feedback circuitry configurable to operate in different modes, such that the feedback signal may be of differing types depending on which feedback mode is implemented.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 12, 2020
    Applicant: Analog Devices Global Unlimited Company
    Inventors: Yue Zhuo, Wenhui Qin, Yingjie Guo, Shaoyu Ma, Tianting Zhao, Baoxing Chen
  • Publication number: 20200076512
    Abstract: Isolators having a back-to-back configuration for providing electrical isolation between two circuits are described, in which multiple isolators formed on a single, monolithic substrate are connected in series to achieve a higher amount of electrical isolation for a single substrate than for isolators formed on separate substrates connected in series. Discrete dielectric regions positioned between isolator components forming an isolator provide electrical isolation between the isolator components as well as between the isolators formed on the substrate. The back-to-back isolator may provide one or more communication channels for transfer of information and/or power between different circuits.
    Type: Application
    Filed: February 27, 2019
    Publication date: March 5, 2020
    Applicant: Analog Devices Global Unlimited Company
    Inventors: Laurence B. O'Sullivan, Shane Geary, Baoxing Chen, Bernard Patrick Stenson, Paul Lambkin, Patrick M. McGuinness, Stephen O'Brien, Patrick J. Murphy
  • Patent number: 10536309
    Abstract: A receiver system for an on-off key (“OOK”) isolator system may include a pair of receivers. A first receiver may generate a first current signal representing a received OOK signal, and a second receiver may generate a second current signal from a common mode representation of the received OOK signal. The receiver system may include circuitry to compare the first and second current signals and generate an output signal therefrom.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: January 14, 2020
    Assignee: Analog Devices, Inc.
    Inventors: Ruida Yun, Eric C. Gaalaas, Baoxing Chen
  • Patent number: 10505258
    Abstract: Radio frequency (RF) isolators are described, coupling circuit domains operating at different voltages. The RF isolator may include a transmitter which emits a directional signal toward a receiver. Layers of materials having different dielectric constants may be arranged to confine the emission along a path to the receiver. The emitter may be an antenna having an aperture facing the receiver.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: December 10, 2019
    Assignee: Analog Devices Global Unlimited Company
    Inventors: Check F. Lee, Bernard P. Stenson, Baoxing Chen
  • Patent number: 10446331
    Abstract: Embodiments of the present invention may provide a wafer-capped rechargeable power source. The wafer-capped rechargeable power source may comprise a device wafer, a rechargeable power source disposed on a surface of the device wafer, and a capping wafer to encapsulate the rechargeable power source. The rechargeable power source may include an anode component, a cathode component, and an electrolyte component.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: October 15, 2019
    Assignee: Analog Devices, Inc.
    Inventor: Baoxing Chen
  • Patent number: 10277278
    Abstract: An embodiment of a communication system for transmitting and receiving data across an isolation barrier may include a communication circuit connected to an isolator at a first side of the isolation barrier, the communication circuit having a transmit circuit to drive a first data signal onto the isolator based on input data received by the communication circuit, a receive circuit to receive a second data signal from the isolator and produce output data based on the received second data signal, and a control circuit to control the transmit and receive circuits to provide time division multiplexing of the first and second data signals.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: April 30, 2019
    Assignee: Analog Devices, Inc.
    Inventors: Bikiran Goswami, Baoxing Chen
  • Patent number: 10270630
    Abstract: A receiver system for an on-off key (“OOK”) isolator system may include a receiver that generates an intermediate current signal based on an OOK input signal. The intermediate current may be provided at a first current level when the input signal has a first OOK state and a second current level when the input signal has a second OOK state. The system also may include an output driver to generate a voltage representation of the intermediate current signal. Performing signal processing in a current domain permits fast transitions between OOK states.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: April 23, 2019
    Assignee: Analog Devices, Inc.
    Inventors: Ruida Yun, Eric C. Gaalaas, Baoxing Chen