Ryan M Desrosiers

age ~55

from Fort Collins, CO

Also known as:
  • Ryan Michael Desrosiers
  • Ryan L Desrosiers
  • Ryan M Desroslers
  • Ryan M Derosiers
  • Ryan Stamates
  • Ryan Monroe
  • Ryan Martin
  • Ryan S
  • Ryan Farkas
Phone and address:
3533 Green Spring Dr, Fort Collins, CO 80528
9702233557

Ryan Desrosiers Phones & Addresses

  • 3533 Green Spring Dr, Fort Collins, CO 80528 • 9702233557
  • 16316 Luke Ln, Tigard, OR 97223 • 5035902522
  • Portland, OR
  • Pittsburgh, PA
  • Presque Isle, WI
  • Hillsboro, OR

Us Patents

  • Efficient Pre-Distorted 12/4 Qam Modulator

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  • US Patent:
    6674811, Jan 6, 2004
  • Filed:
    Jun 14, 2000
  • Appl. No.:
    09/593328
  • Inventors:
    Ryan M. Desrosiers - Tigard OR
    Craig A. Hornbuckle - Torrance CA
    Harvey L. Berger - Bedondo Beach CA
  • Assignee:
    Northrop Grumman Corporation - Los Angeles CA
  • International Classification:
    H04L 2736
  • US Classification:
    375298, 375296, 375261, 375308, 332103
  • Abstract:
    Methods and devices for predistorted 12/4 Quadrature Amplitude Modulation that compensate for distortion from a nonlinear element. Modulator input bits are mapped ( ) to a plurality of nonreturn-to-zero (NRZ) modulator control bit ( ). The mapping is determined by desired points on a 12/4 QAM constellation. At least one phase shift device ( ) receives an input signal and at least one of the plurality of modulator control bit. At least two quaternary phase shift keying (QPSK) devices ( ) receive phase shifted signals from at least one phase shift device. Each of at least two QPSK devices receives at least one of the plurality of NRZ symbols. An attenuator ( ) that attenuates a first QPSK signal outputted from a first QPSK device of the at least two QPSK devices. A summer ( ) sums the attenuated first QPSK signal with a second QPSK signal. The second QPSK signal is outputted from a second QPSK device of the two QPSK devices.
  • Hysteretic Switching Regulator With Reduced Switching Frequency Variation

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  • US Patent:
    20120229105, Sep 13, 2012
  • Filed:
    Mar 10, 2011
  • Appl. No.:
    13/045333
  • Inventors:
    Eric Martin HAYES - Fort Collins CO, US
    Ryan Desrosiers - Fort Collins CO, US
  • Assignee:
    Broadcom Corporation - Irvine CA
  • International Classification:
    G05F 1/10
  • US Classification:
    323271
  • Abstract:
    Embodiments of a hysteretic switching regulator with reduced switching frequency variation over changes in one or more of input voltage, output voltage, and temperature are provided herein. A frequency adjust controller is specifically used to adjust a parameter of an integrator within the hysteretic switching regulator to compensate for changes in one or more of input voltage, output voltage, and temperature to maintain the switching frequency of the regulator within a narrow frequency range. Limiting the potentially wide switching frequency variation makes filtering of electromagnetic interference (EMI) caused by the switching action of the hysteretic switching regulator more effective and simpler to implement.
  • Wireless Power Receiver Voltage Control Enabling Simultaneous Communications To Transmitter In Over-Voltage State

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  • US Patent:
    20170104368, Apr 13, 2017
  • Filed:
    Sep 15, 2016
  • Appl. No.:
    15/266689
  • Inventors:
    - Irvine CA, US
    Ryan DESROSIERS - Fort Collins CO, US
    Chia-Jen HSU - Irvine CA, US
    Desheng MA - Irvine CA, US
  • Assignee:
    BROADCOM CORPORATION - Irvine CA
  • International Classification:
    H02J 50/12
    H02J 50/80
    H02J 7/02
  • Abstract:
    A wireless power receiver includes circuitry configured to receive a wirelessly induced voltage from a wireless power transmitter via a magnetically induced connection with the wireless power transmitter. It is determined that an overvoltage condition exists when the wirelessly induced voltage exceeds a threshold voltage, and the wirelessly induced voltage is reduced in response to determining that the overvoltage condition exists. The circuitry communicates the overvoltage condition to the wireless power transmitter via the magnetically induced connection while over-voltage protection is enabled.
  • Wireless Power Transfer Gate-Drive Power Reduction

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  • US Patent:
    20170098962, Apr 6, 2017
  • Filed:
    Aug 10, 2016
  • Appl. No.:
    15/233859
  • Inventors:
    - Irvine CA, US
    Ryan Michael DESROSIERS - Fort Collins CO, US
  • International Classification:
    H02J 50/12
    H02J 7/02
    H02M 1/08
    H02J 5/00
    H02M 3/158
  • Abstract:
    A device and circuits are provided for wireless power transfer (WPT) gate-drive power reduction. A WPT receiver circuit includes a receive coil to couple to a transmit coil of a WPT transmitter circuit. A rectification circuit is coupled to the receive coil to generate a rectified voltage. The rectification circuit is a bridge rectifier circuit including a first set of field-effect transistors (FETs). One or more gate-drive control circuits improve power dissipation of the rectification circuit by controlling drive voltages of gate terminals of the first set of FET switches after start-up of the WPT receiver circuit.
  • Wireless Power Transfer Load Modulation Enhancement

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  • US Patent:
    20170098966, Apr 6, 2017
  • Filed:
    Sep 28, 2016
  • Appl. No.:
    15/279323
  • Inventors:
    - Irvine CA, US
    Ryan Michael DESROSIERS - Fort Collins CO, US
  • International Classification:
    H02J 50/12
    H02J 7/02
    H02J 50/90
  • Abstract:
    A wireless power transfer (WPT) receiver circuit includes a receive coil to couple to a transmit coil of a WPT transmitter circuit. A rectifier is coupled to the receive coil to generate a rectified voltage. The rectifier comprises a bridge rectifier circuit including a first set of switching elements. A load modulation circuit facilitates communication between the WPT receiver circuit and the WPT transmitter circuit. The load modulation circuit includes a single modulation capacitor and one or more modulation switching elements. At least one node of one of the modulation switching elements is connected to an input node of the rectifier.
  • Resonant Tuning Through Rectifier Time Shifting

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  • US Patent:
    20150255989, Sep 10, 2015
  • Filed:
    Apr 2, 2014
  • Appl. No.:
    14/243411
  • Inventors:
    - Irvine CA, US
    Ryan Michael Desrosiers - Fort Collins CO, US
  • Assignee:
    Broadcom Corporation - Irvine CA
  • International Classification:
    H02J 5/00
    H02M 7/217
    H01F 38/14
  • Abstract:
    A device includes support for wireless power transfer. The device may control the timing of switching devices in a rectifier circuit and implement resonant tuning techniques that facilitate the wireless power transfer, e.g., by purposefully introducing a real or complex impedance chosen to meet a current operating goal. The device may use the techniques in connection with wireless charging or wireless provision of power to run the device, as examples.
  • Pre-Charging Mechanism For Multi-Input Switching Charger

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  • US Patent:
    20150137766, May 21, 2015
  • Filed:
    Jan 13, 2014
  • Appl. No.:
    14/154061
  • Inventors:
    - Irvine CA, US
    Jay Edward Ackerman - Fort Collins CO, US
    Michael Owen Baker - Fort Collins CO, US
    Ryan Michael Desrosiers - Fort Collins CO, US
  • Assignee:
    BROADCOM CORPORATION - Irvine CA
  • International Classification:
    H02J 7/00
  • US Classification:
    320137
  • Abstract:
    A circuit for a switching charger includes multiple input supply nodes, and a number of charging paths. Each input supply node is connectable to a power source. Each charging path may include a middle node connected to a coupling switch and a pass transistor. The coupling switch may be configured to activate a corresponding charging path of the charging paths. A pre-charging switch may be coupled to a corresponding middle node of each charging path. The pass transistor of an activated one of the charging paths may be configured to provide a switching voltage at an input of a charging sub-circuit. The pre-charging switch may be configurable to pre-charge a middle node of a non-activated path to a high voltage to prevent an unwanted high current passing through a body diode of a corresponding pass transistor of the non-activated path.
  • Battery Fuel Gauge Calibration

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  • US Patent:
    20150048839, Feb 19, 2015
  • Filed:
    Aug 22, 2013
  • Appl. No.:
    13/973403
  • Inventors:
    - Irvine CA, US
    Ryan Michael Desrosiers - Fort Collins CO, US
  • Assignee:
    Broadcom Corporation - Irvine CA
  • International Classification:
    G01R 31/36
  • US Classification:
    324433
  • Abstract:
    Accurate charge measurement based on a calibration factor is described. According to certain aspects, the amount of charge stored in a battery is accumulated over time and adjusted using a calibration factor. In one embodiment, the calibration factor is determined by generating a replica current which comprises a scaled factor of a battery charging current. A calibration reference voltage is measured based on the replica current, and a charge reference voltage is measured based on the battery charging current. A calibration factor is determined based on the charge reference voltage and the calibration reference voltage. In turn, the amount of charge in a battery is accumulated over time using the calibration factor. In various embodiments, the calibration factor provides a factor by which a relatively-low tolerance reference circuit is adjusted, to achieve higher accuracy without substantially increased cost.
Name / Title
Company / Classification
Phones & Addresses
Ryan M. Desrosiers
Principal
Desrosiers Inc
Business Services at Non-Commercial Site
3533 Grn Spg Dr, Fort Collins, CO 80528

Resumes

Ryan Desrosiers Photo 1

Associate Technical Director, Ic Design

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Location:
Fort Collins, CO
Industry:
Semiconductors
Work:
Broadcom - Fort Collins, Colorado Area since May 2007
Senior Principal Design Engineer

Maxim Integrated Products - Hillsboro, OR Aug 1999 - May 2007
Senior MTS
Education:
Carnegie Mellon University 1994 - 1996
Master of Science (MSc), Semiconductor Manufacturing Technology
Skills:
Circuit Design
Wireless
Cellular Communications
Ic
Soc
Asic
Semiconductors
Mixed Signal
Cmos
Verilog
Analog
Rtl Design
Analog Circuit Design
Power Management
Integrated Circuit Design
Ryan Desrosiers Photo 2

Ryan Desrosiers

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Youtube

Ryan Desrosiers - Advice for law school appli...

UMass Amherst alum and Boston College Law 1L Ryan Desrosiers reveals w...

  • Duration:
    35s

Ryan Defrates Secret Agent | Season 1 | Episo...

After years of students refusing to practice, an embittered piano teac...

  • Duration:
    29m 48s

Ryan Defrates: Secret Agent | Season 1 | Epis...

Kackle the clown has taken over the circus and plans to launch his gia...

  • Duration:
    24m 55s

Ryan Desrosiers MAVO2018

Ryan talks about his MAVO2018 experience.

  • Duration:
    37s

Ryan Defrates: Secret Agent | Season 1 | Epis...

A turkey secretly packed with Granny's explosive hot sauce threatens t...

  • Duration:
    22m 43s

Ryan Desrosiers MX

Mx clip of me.

  • Duration:
    2m 45s

Googleplus

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Ryan Desrosiers

Flickr

Facebook

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Ryan Desrosiers

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Ryan Desrosiers

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Ryan Desrosiers Photo 17

Ryan Desrosiers

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Ryan Desrosiers Photo 18

Ah RYan Desrosiers

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RyAn Desrosiers

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Ryan Desrosiers

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Ryan Desrosiers Photo 21

Ryan Desrosiers

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Ryan Desrosiers Photo 22

Ryan Desrosiers

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Myspace

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Ryan Desrosiers

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Locality:
WORCESTER, MASSACHUSETTS
Gender:
Male
Birthday:
1941
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Ryan Desrosiers

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Locality:
Belleville
Gender:
Male
Birthday:
1942
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Ryan Desrosiers

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Locality:
taunton, Massachusetts
Gender:
Male
Birthday:
1943
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Ryan DesRosiers

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Locality:
Valley Center, California
Gender:
Male
Birthday:
1933
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Ryan Desrosiers

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Locality:
STRATFORD, CONNECTICUT
Gender:
Male
Birthday:
1946

Classmates

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Ryan Desrosiers

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Schools:
Keene High School Keene NH 1987-1991
Community:
Wayne Miskelly, Donald Bailey, James Mcgilvery
Ryan Desrosiers Photo 29

Ryan Desrosiers

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Schools:
St. Francis Xavier High School New York NY 2001-2005
Community:
Robert Martin
Ryan Desrosiers Photo 30

Bunnell High School, Stra...

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Graduates:
Ryan Desrosiers (2002-2006),
David Pervier (1975-1979),
Najwa Deeb (1992-1996),
Caroline Nolting (1973-1977)
Ryan Desrosiers Photo 31

Greater Lawrence Voc-Tec ...

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Graduates:
Ryan Desrosiers (1990-1994),
Daniel Butterworth (1974-1978),
Kenneth Robinson (1974-1978),
Christine Prescott (1993-1997),
Yonaidy Molina (2002-2006)

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