Patents by Inventor Gregory Manlove

Gregory Manlove 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: 10534384
    Abstract: A current mode switching regulator circuit and operating method includes a variable duty cycle power switch controller, a voltage feedback loop that provides a feedback signal based on the output voltage, a current feedback loop that provides a current sense signal based on the output current, and an offset circuit having an external signal input and coupled to the current feedback loop. The power switch controller controls the switching regulator circuit to generate an output voltage and an output current. The offset circuit is configured to provide an offset output control signal, independently of the voltage feedback loop, to control the power switch controller so as to vary a duty cycle of the power switch controller based on the current sense signal and an external offset signal applied to the external signal input.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: January 14, 2020
    Assignee: Linear Technology Corporation
    Inventors: Gregory Manlove, James McKenzie, Robert Chiacchia, Yi Ding Gu, Jian Li
  • Patent number: 10013003
    Abstract: A switching regulator circuit incorporates an offset circuit, connected in a control loop of the regulator circuit, that, in response to a signal indicating an imminent load current step, adjusts a duty cycle of a power switch for the current step prior to the regulator circuit responding to a change in output voltage due to the current step. In one embodiment, a load controller issues a digital signal shortly before a load current step. The digital signal is decoded and converted to an analog offset signal in a feedback control loop of the regulator to immediately adjust a duty cycle of the switch irrespective of the output voltage level. By proper timing of the offset, output voltage ripple is greatly reduced. The current offset may also be used to rapidly change the output voltage in response to an external signal requesting a voltage step.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: July 3, 2018
    Assignee: LINEAR TECHNOLOGY CORPORATION
    Inventors: Gregory Manlove, Yi Ding Gu, Jian Li
  • Publication number: 20170237345
    Abstract: A current mode switching regulator circuit and operating method includes a variable duty cycle power switch controller, a voltage feedback loop that provides a feedback signal based on the output voltage, a current feedback loop that provides a current sense signal based on the output current, and an offset circuit having an external signal input and coupled to the current feedback loop. The power switch controller controls the switching regulator circuit to generate an output voltage and an output current. The offset circuit is configured to provide an offset output control signal, independently of the voltage feedback loop, to control the power switch controller so as to vary a duty cycle of the power switch controller based on the current sense signal and an external offset signal applied to the external signal input.
    Type: Application
    Filed: May 3, 2017
    Publication date: August 17, 2017
    Inventors: Gregory MANLOVE, James MCKENZIE, Robert CHIACCHIA, Yi Ding GU, Jian LI
  • Publication number: 20140139198
    Abstract: A switching regulator circuit incorporates an offset circuit, connected in a control loop of the regulator circuit, that, in response to a signal indicating an imminent load current step, adjusts a duty cycle of a power switch for the current step prior to the regulator circuit responding to a change in output voltage due to the current step. In one embodiment, a load controller issues a digital signal shortly before a load current step. The digital signal is decoded and converted to an analog offset signal in a feedback control loop of the regulator to immediately adjust a duty cycle of the switch irrespective of the output voltage level. By proper timing of the offset, output voltage ripple is greatly reduced. The current offset may also be used to rapidly change the output voltage in response to an external signal requesting a voltage step.
    Type: Application
    Filed: February 11, 2013
    Publication date: May 22, 2014
    Applicant: LINEAR TECHNOLOGY CORPORATION
    Inventors: Gregory Manlove, Yi Ding Gu, Jian Li
  • Publication number: 20070157699
    Abstract: A sensor module is provided having a compact housing containing a sensor. A low temperature co-fired ceramic substrate is located on the housing. The sensor and signal processing circuitry are located on the low temperature co-fired ceramic substrate. The sensor module further includes a metal shield substantially encapsulating the sensor.
    Type: Application
    Filed: January 9, 2006
    Publication date: July 12, 2007
    Inventors: Gregory Manlove, Stephen Long, Hamid Borzabadi, Timothy Vas, Kevin Hawes
  • Publication number: 20060262829
    Abstract: An infrared temperature sensing device is provided for sensing temperature of a target object. The sensing device includes a semiconductor substrate, a thermopile infrared sensor mounted to the substrate for sensing temperature of a remote target object, and temperature sensing circuitry mounted to the substrate. The temperature sensing circuitry generates a temperature dependent signal substantially linearly related to ambient temperature of the substrate. The sensing device further includes summing circuitry for generating a signal indicative of infrared sensed temperature as a function of the ambient temperature.
    Type: Application
    Filed: May 17, 2005
    Publication date: November 23, 2006
    Inventors: Gregory Manlove, Pedro Castillo-Borelly, James Logsdon, Jack Johnson, Timothy Vas, Abhijeet Chavan
  • Publication number: 20060184300
    Abstract: Impending rollover events are detected based on differential z-axis (i.e., vertical) acceleration. Vertical or z-axis acceleration measured at laterally opposite sides of the vehicle are filtered and differenced, and the differential acceleration is processed and compared to a calibrated threshold to detect impending rollover. Separate algorithms are employed to detect different categories of rollover events, and a sum of the z-axis acceleration measurements is used as a safing signal.
    Type: Application
    Filed: February 11, 2005
    Publication date: August 17, 2006
    Inventors: Peter Schubert, Charles Cluff, James Brogoitti, John Robertson, Gregory Manlove, David Rich
  • Publication number: 20060092032
    Abstract: The capacitance of a shielded capacitive load cell is determined so as to minimize the effect of stray or parasitic capacitance between the load cell and other objects including the shield. The load cell conductors are coupled across input and output terminals of an operational amplifier that is tied to a reference voltage. A constant current is applied to the load cell, and the resulting rate of change in voltage at the amplifier output is measured as a representation of the load cell capacitance. In a vehicle seat sensor application including an electromagnetic interference shield between the load cell and the seating surface, the amplifier output is coupled to the load cell electrode furthest from the shield, the amplifier maintains the other load cell electrode at a virtual reference voltage, and the shield is tied to the reference voltage.
    Type: Application
    Filed: October 30, 2004
    Publication date: May 4, 2006
    Inventors: Gregory Manlove, Robert Constable, Ashraf Kamel, Gregory Cobb, Duane Fortune, William Fultz, Dennis Griffin, Thomas Voreis
  • Publication number: 20050109935
    Abstract: A sensor and method are provided for sensing characteristics, such as pressure and temperature, and transmitting the sensed characteristics and stored data in first and second data communication protocols. The sensor includes stored data transmit in an output signal according to a first data communication protocol. The sensor senses pressure and temperature and transmits the sensed pressure and temperature characteristics in a pulse width modulated output signal according to a second data communication protocol. The stored data is transmit following a power reset, and subsequent thereto the sensed data is transmit.
    Type: Application
    Filed: March 19, 2004
    Publication date: May 26, 2005
    Inventors: Gregory Manlove, Mark Keyse, Robert Constable
  • Publication number: 20050109111
    Abstract: A sensor and method are provided for transmitting sensor generated output signals in a pulse width modulated output signal. The sensor includes a pressure sensing element for sensing pressure and temperature sensing circuitry for sensing temperature. Output circuitry outputs a pulse width modulated signal containing an indication of the pressure and temperature. The pressure is transmitted as a function of duty cycle of the pulse width modulated output signal, and the temperature is transmitted as a function of frequency of the pulse width modulated output signal.
    Type: Application
    Filed: October 30, 2003
    Publication date: May 26, 2005
    Applicant: DELPHI TECHNOLOGIES, INC.
    Inventors: Gregory Manlove, Robert Constable, Hamid Borzabadi
  • Publication number: 20050092095
    Abstract: A pressure sensor module is provided with an isolation platform which isolates stress. The pressure sensor module includes a base structure and a cantilever member formed in the base structure by an isolation gap. A pressure sensing element is located on the cantilever member such that the cantilever member provides stress isolation to the pressure sensing element.
    Type: Application
    Filed: November 3, 2003
    Publication date: May 5, 2005
    Inventors: Hamid Borzabadi, Dennis Koglin, Gregory Manlove, Stephen Long
  • Publication number: 20050052296
    Abstract: Analog signal conditioning circuitry is provided for processing an analog signal generated by a sensor to remove DC offset. The signal conditioning circuitry includes an amplifier having the first input receiving an analog input signal and a second input receiving a reference signal. The amplifier includes an output providing an analog output signal defined by an amplified representation of the analog input signal and the reference signal. The circuitry includes a feedback circuit having an input coupled to the amplifier output and an output coupled to the first input of the amplifier for providing an analog feedback signal. The feedback circuit includes an analog-to-digital converter for converting the analog amplifier output to a digital signal, a digital controller for processing the digital signal, and a digital to analog converter for converting the processed digital signal to an analog feedback signal.
    Type: Application
    Filed: October 15, 2004
    Publication date: March 10, 2005
    Inventors: Gregory Manlove, Mark Keyse