Patents Assigned to Maxim Integrated Products, Inc.
  • Patent number: 10348095
    Abstract: A method for controlling a switching circuit including an input port electrically coupled to a photovoltaic device and an output port electrically coupled to a load includes (1) entering a voltage limiting operating mode and (2) in the voltage limiting operating mode (i) causing a control switching device of the switching circuit to repeatedly switch between its conductive and non-conductive states in a manner which limits magnitude of an output voltage to a maximum voltage value, the output voltage being a voltage across the output port, and (ii) varying the maximum voltage value as a function of magnitude of an output current, the output current being a current flowing through the output port.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: July 9, 2019
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Seth M. Kahn, Anthony J. Stratakos, Ilija Jergovic, Vincent W. Ng, Ryan James Ricchiuti, Artin Der Minassians
  • Patent number: 10326369
    Abstract: A converter includes first and second coupled inductors. A first phase includes first high side and low side switches connected to the first inductor. A second phase includes second high side and low side switches connected to the second inductor. In discontinuous conduction mode, the controller determines, in response to the first high side switch being turned on and the second low side switch being turned off, that coupling between the first and second inductors is strong or weak based on whether body diode of the second low side switch will conduct if not prevented from conducting. The controller prevents second low side switch body diode conduction in response to the first high side switch being turned on when the coupling is strong, and does not prevent second low side switch body diode conduction in response to the first high side switch being turned on when the coupling is weak.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: June 18, 2019
    Assignee: MAXIM INTEGRATED PRODUCTS, INC.
    Inventors: Xin Zhou, Justin Michael Burkhart, Brett A. Miwa
  • Patent number: 10317460
    Abstract: A precision alignment unit and techniques are described that include a tray assembly configured to be used in a testing system, where the tray assembly includes at least one pocket formed in the tray assembly, the pocket configured to contain an integrated circuit chip, and at least one pin pass-through, and a device positioning unit including at least one alignment device configured to extend through the at least one pin pass-through. In implementations, a process for using the precision alignment system that employs the techniques of the present disclosure includes mounting a precision alignment unit to a vacuum chuck of a handler; loading at least one alignment tray into the handler; placing the at least one alignment tray on the precision alignment unit; and aligning at least one integrated circuit chip device disposed on the at least one alignment tray.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: June 11, 2019
    Assignee: MAXIM INTEGRATED PRODUCTS, INC.
    Inventors: Morris R. Fox, Eric G. Anusevicius
  • Patent number: 10304758
    Abstract: Techniques for forming a wafer level package device are disclosed. In one or more embodiments, the techniques include forming a wafer level lead frame on a carrier wafer and electrically connecting the wafer level lead frame to an active semiconductor wafer. The carrier wafer and the active semiconductor wafer have at least substantially the same coefficients of thermal expansion. The carrier wafer can be removed from the wafer level package device, and a number of connectors can be formed on the wafer level package device. The wafer level package device can be singulated to form chip packages, such as DFN or QFN packages.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: May 28, 2019
    Assignee: MAXIM INTEGRATED PRODUCTS, INC
    Inventors: Karthik Thambidurai, Ahmad Ashrafzadeh, Viresh P. Patel, Viren Khandekar
  • Patent number: 10304150
    Abstract: A system for generating and detecting watermarks within a video frame (e.g., video content) is described to determine whether a data interruption has occurred. In one or more implementations, the system includes a generation module communicatively coupled to a video source and a watermark detection module configured to receive a plurality of video watermarks. The watermarking detection module is configured to determine whether a watermark embedded in a current (e.g., a second) video frame is different from a watermark embedded in the previous (e.g., a first) video frame. The watermarking detection module is configured to generate an error signal when the watermark embedded in the current (e.g., a second) video frame is not different than the watermark embedded in the previous (e.g., a first) video frame to indicate a data interruption event has occurred.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: May 28, 2019
    Assignee: MAXIM INTEGRATED PRODUCTS, INC.
    Inventor: Kevin J. Witt
  • Patent number: 10297379
    Abstract: A switching power converter includes an integrated transformer and coupled inductor, first and second primary switching circuits, and a master controller. The integrated transformer and coupled inductor includes (a) first and second primary windings electrically coupled in series and (b) first and second secondary windings. The first and second primary switching circuits are electrically coupled to an end of the first primary winding and an end of the second primary winding, respectively. The master controller is configured to determine a magnitude of magnetizing current of the integrated transformer and coupled inductor from a difference between magnitude of current flowing through the first secondary winding and magnitude of current flowing through the second secondary winding, when the first and second primary switching circuits are in their respective off-states.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: May 21, 2019
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Sean Philip Gold, Alexandr Ikriannikov, Milan Dragojevic, Michael D. McJimsey
  • Patent number: 10289186
    Abstract: Various embodiments of the invention allow to dynamically transition between clock-driven and even-driven circuit elements to enable automatic multi-mode operation to enable low-power and high-throughput applications. In certain embodiments, dynamic transitioning is accomplished through a mode control unit that evaluates input data from a number of sources to determine whether to initiate a transition. Certain embodiments take advantage of dynamic transitioning to allow for energy harvesting in a data gathering phase by switching to high power communication phase as needed. The energy harvesting scheme is particularly suited for battery-operated applications that benefit from a reduction in overall power consumption.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: May 14, 2019
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Hung Thanh Nguyen, Nancy Kow Iida, Edward Tangkwai Ma, Robert Michael Muchsel, Gary Vernon Zanders
  • Patent number: 10284277
    Abstract: A communication system includes a first radio module and a second radio module. The first radio module includes a tuner communicatively coupled to a reference signal generator that is configured to generate a first reference signal for the tuner. The first radio module further includes a serializer configured to serialize a signal output by the tuner. The second radio module includes a deserializer configured to receive a serialized version of the signal from the serializer of the first radio module and deserialize the serialized version of the signal. The second radio module further includes a second tuner that is communicatively coupled to a clock recovery circuit. The clock recovery circuit is configured to generate a second reference signal for the second tuner based on a deserialized version of the first signal, where the second reference signal is frequency and phase locked to the first reference signal.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: May 7, 2019
    Assignee: MAXIM INTEGRATED PRODUCTS, INC.
    Inventors: Matthew Waight, Alexei Shatalov, Adam Heiberg
  • Patent number: 10277380
    Abstract: A configurable transceiver includes a first transmitter, an edge rate controller, a second transmitter, a subtractor, a bandwidth controller and a main controller. The first transmitter is configured to generate a first signal for transmission via a transmission link. The second transmitter is configured to generate a replica signal associated with the first signal. The edge rate controller is communicatively coupled to the first and/or second transmitter and is configured to control an edge rate parameter of the first and/or second signal. The subtractor is configured to subtract the replica signal from a signal received via the transmission link. The bandwidth controller is configured to control a bandwidth parameter of a difference signal received from the output of the subtractor. The main controller chooses edge rate and bandwidth control words per desired link rates. It can also automatically find the maximum possible link speed.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: April 30, 2019
    Assignee: MAXIM INTEGRATED PRODUCTS, INC.
    Inventors: Caglar Yilmazer, Arda K. Bafra, Umut Yilmazer
  • Publication number: 20190124457
    Abstract: Described herein are systems and methods for reliably detecting of the presence or absence of accessories and other components connected to an external electrical device or connector. A low-cost detection circuit reliably distinguishes between a compromised connector and the presence of an actual device, thereby, preventing false detection scenarios. In various embodiments, the detection circuit accomplishes this by using a zero-crossing detector and/or a digital signal, which serves as a measure of impedance, to detect, within an identification period, the presence of the external device.
    Type: Application
    Filed: October 23, 2018
    Publication date: April 25, 2019
    Applicant: Maxim Integrated Products, Inc.
    Inventors: Sang Hoon Kim, Giuseppe Patti
  • Patent number: 10271151
    Abstract: Aspects of the disclosure pertain to a system and method for providing temperature limiting for a voice coil of a speaker. The system and method provide the aforementioned temperature limiting based upon monitoring (e.g., measurement) of an amplifier output signal provided to the speaker. Providing the aforementioned temperature limiting promotes improved protection for the speaker.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: April 23, 2019
    Assignee: Maxim Integrated Products, Inc.
    Inventor: Robert Polleros
  • Patent number: 10269916
    Abstract: A lateral double-diffused metal-oxide-semiconductor field effect transistor includes a silicon semiconductor structure, first and second gate structures, and a trench dielectric layer. The first and second gate structures are disposed on the silicon semiconductor structure and separated from each other in a lateral direction. The trench dielectric layer is disposed in a trench in the silicon semiconductor structure and extends at least partially under each of the first and second gate structures in a thickness direction orthogonal to the lateral direction.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: April 23, 2019
    Assignee: Maxim Integrated Products, Inc.
    Inventors: John Xia, Marco A. Zuniga, Badredin Fatemizadeh, Vijay Parthasarathy
  • Patent number: 10257959
    Abstract: Methods and apparatus for monitoring air cooling fans including, by way of non-limiting examples, the determination of an upper and lower boundary limit of acceptable fan operation, sends a control signal to a fan being monitored, measures the fan rotation rate or fan power consumption subsequent to sending the control signal; and issues an alarm if the measured fan rotation rate is above the upper boundary limit or below the lower boundary limit.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: April 9, 2019
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Dewight L. Warren, Neil D. Longgood, Kerry D. Lacanette
  • Patent number: 10256031
    Abstract: A low-profile coupled inductor includes a magnetic core and first and second windings. The magnetic core includes first and second end flanges, a winding form element, a first outer plate, and a first leakage post. The winding form element is disposed between and connects the first and second end flanges in a first direction. The first outer plate is disposed over and faces the first and second end flanges in a second direction. The first leakage post is disposed between the winding form element and the first outer plate in the second direction. The first winding is wound around the winding form element, between the first end flange and the first leakage post, and the second winding is wound around the winding form element, between the first leakage post and the second end flange. Each of the windings is wound around a common axis extending in the first direction.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: April 9, 2019
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Michael Warren Baker, Jizheng Qiu, Brett A. Miwa, Alexandr Ikriannikov
  • Patent number: 10231629
    Abstract: An integrated multifunction sensor, a mobile integrated sensor device, and process are described that include a sensor, where the sensor is used primarily for a first purpose other than as an electrode. In an implementation, an integrated multifunction sensor includes a multifunction sensor configured as a sensor and a first electrode, the multifunction sensor including a lid coupled to a first side of the sensor, where the lid includes a semi-conductive material, and an analog device connected to the lid; where the multifunction sensor is configured to couple to a controller that receives health information from the first electrode and a second electrode. In some embodiments, the integrated multifunction sensor can include an integrated optical sensor. In some implementations, a second electrode may be located elsewhere in a mobile integrated sensor device and complete a differential circuit.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: March 19, 2019
    Assignee: MAXIM INTEGRATED PRODUCTS, INC.
    Inventors: Cheng-Wei Pei, Richard I. Olsen
  • Patent number: 10234952
    Abstract: The invention relates to wearable devices for sensing gestures. A watch, which is a wearable device, includes an ultrasonic system that has an ultrasonic transducer and one or more sensors and measures the location of a finger on the back of the user's hand. Using the ultrasonic system, it is possible to use the back of the hand as an extension to the screen display of the watch. The watch can be used as a motion detector and interface with various types of mobile devices, such as computerized eyeglass. The watch can also function as a generic input mechanism for various types of devices, such as tablet, TV, or laptop computer, where these devices are coupled to the watch via a suitable communication system, such as Bluetooth® interconnection system.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: March 19, 2019
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Pirooz Parvarandeh, Anthony Stephen Doy
  • Publication number: 20190078939
    Abstract: Various embodiments of the invention provide systems and methods for accurately determining temperatures in harsh environments such as, for example, in a steam autoclave chamber during a sterilization cycle. In certain embodiments, temperature data accuracy is increased by utilizing an IC-based temperature logging device that monitors and compensates for inherent thermal delays that would otherwise cause a discrepancy between temperature as measured by a temperature sensor and the actual ambient gas temperature. By properly correcting for the thermal delay, the data accuracy of the measured gas temperature is thus greatly enhanced.
    Type: Application
    Filed: November 14, 2016
    Publication date: March 14, 2019
    Applicant: Maxim Integrated Products, Inc.
    Inventors: Victor Levi, Micheal O'Onofino, Ragunah Puttaiah
  • Patent number: 10230427
    Abstract: A method for direct current power line communication in a photovoltaic system includes (a) transferring power between a photovoltaic device and a load using a power line, (b) detecting a change in operation of the power line, and (c) in response to the detected change in operation of the power line, decoding operating state of the power line to obtain information. A method for direct current power line communication in a photovoltaic system includes (a) transferring power between a photovoltaic device and a load using a power line, (b) changing operation of the power line, and (c) encoding operating state of the power line to represent information to be communicated.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: March 12, 2019
    Assignee: Maxim Integrated Products, Inc.
    Inventor: Seth M. Kahn
  • Patent number: 10211172
    Abstract: A surface mount device includes at least one semiconductor device including an exposed top metal, an encapsulation layer partially encapsulating the at least one semiconductor device, and at least one end-termination cap on the surface mount device resulting in an electrical connection from a first side of the surface mount device to a second side of the surface mount device. In implementations, one process for fabricating the surface mount device includes dicing a finished device wafer in a scribe-line region, applying tape to a first side of the finished device wafer, backgrinding a second side of the finished device wafer, encapsulating the second side of the finished device wafer with an encapsulation layer, singulating the finished device wafer, and forming at least one wrap-around connection from a first side of the surface mount device to a second side of the surface mount device.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: February 19, 2019
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Anuranjan Srivastava, Khanh Tran
  • Patent number: RE47399
    Abstract: A power amplifier protection system to sense one or more operating conditions of a power amplifier and regulate the power of the input signal to the power amplifier as a response to one or more of the sensed operating conditions. This dynamic protection system may protect a power amplifier from failure by monitoring such operating conditions as power output and temperature and reducing the amplitude of the input signal if the power amplifier is operating beyond specified levels.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: May 21, 2019
    Assignee: Maxim Integrated Products, Inc.
    Inventor: Stewart Sidney Taylor