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Eric C Gaalaas

from Bedford, MA
Age ~52
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Also known as:
Eric Clay Gaalaas, Michelle Sanders
Phone and address:
38 Dunster Rd, Bedford, MA 01730
(781) 271-0702
Related to:
Peder B Gaalaas, 85Trygve Gaalaas
Connected to:
Timothy R Gaar, 50Greta C Gaard, 64Michael Gaardboe, 65Gisle T Gaasemyr, 38Carey M Gaba, 48Frank E Gaba, 74Gopal Gaba, 35James E Gaba, 93Jatin S Gaba, 46John A Gaba, 56

Eric Gaalaas Phones & Addresses

  • 38 Dunster Rd, Bedford, MA 01730 (781) 271-0702
  • 18 Hartford St, Bedford, MA 01730 (781) 271-0702
  • San Antonio, TX
  • 96 Fairmont St, Arlington, MA 02474 (781) 648-4877
  • 1720 Lake Shore Dr, Austin, TX 78741 (512) 326-4506
  • Ithaca, NY
  • Chantilly, VA
  • 38 Dunster Rd, Bedford, MA 01730 (781) 254-9960

Work

Company: Analog devices Jun 1999 Position: Ic design engineer and manager

Education

Degree: Masters, Master of Engineering School / High School: Cornell University 1993 to 1994 Specialities: Electronics Engineering, Engineering, Electronics

Skills

Semiconductors • Mixed Signal • Analog • Electronics • Ic • Technical Writing • Management • Asic • Power Electronics • Verilog • Team Leadership • Project Management • Project Planning • Supervisory Skills

Languages

English

Ranks

Certificate: Certificate of Professional Development, Power Electronics

Emails

e***[email protected]

Industries

Semiconductors

Resumes

Resumes

Eric Gaalaas Photo 1

Ic Design Engineer And Manager

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Location:
38 Dunster Rd, Bedford, MA 01730
Industry:
Semiconductors
Work:
Analog Devices
Ic Design Engineer and Manager
Cirrus Logic Jun 1994 - Apr 1999
Ic Design Engineer
Education:
Cornell University 1993 - 1994
Masters, Master of Engineering, Electronics Engineering, Engineering, Electronics Cornell University 1989 - 1993
Bachelors, Bachelor of Science, Electronics Engineering Chantilly High School 1986 - 1989
Skills:
Semiconductors
Mixed Signal
Analog
Electronics
Ic
Technical Writing
Management
Asic
Power Electronics
Verilog
Team Leadership
Project Management
Project Planning
Supervisory Skills
Languages:
English
Certifications:
Certificate of Professional Development, Power Electronics
University of Colorado Boulder

Publications

Us Patents

Sigma-Delta Modulator With Reduced Switching Rate For Use In Class-D Amplification

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US Patent:
6924757, Aug 2, 2005
Filed:
May 21, 2004
Appl. No.:
10/851400
Inventors:
Robert W. Adams - Acton MA, US
David Hossack - Cambridge MA, US
Eric Gaalaas - Bedford MA, US
Assignee:
Analog Devices, Inc. - Norwood MA
International Classification:
H03M003/00
US Classification:
341143, 341155
Abstract:
A sigma delta modulator includes a modulator module that includes a quantizer with variable hysteresis, which receives an input signal to perform necessary modulation operations. A non-linear mapping module receives a signal associated with said input signal and tabulates the necessary hysteresis control information so as to reduce the transition rate of the modulator module.

Apparatus And Method For Controlling The State Variable Of An Integrator Stage In A Modulator

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US Patent:
7053807, May 30, 2006
Filed:
Mar 3, 2005
Appl. No.:
11/070990
Inventors:
Eric Gaalaas - Bedford MA, US
Assignee:
Analog Devices, Inc. - Norwood MA
International Classification:
H03M 3/00
US Classification:
341143, 341172
Abstract:
An apparatus for controlling the state variable of an integrator stage in a modulator including a detector circuit for generating an overload signal when the modulator is overdriven, a control circuit responsive to the overload signal for generating switching control signals during the overdriven condition, and an integrating capacitance circuit having an unswitched portion and a switched portion and responsive to the switching signals for repeatedly connecting the switched portion between the unswitched portion and a discharge path to receive and drain charge when the modulator is overdriven to increase the lossiness of the integrator stage and control a state variable of the modulator.

Noise Reduction System And Method For Audio Switching Amplifier

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US Patent:
7872522, Jan 18, 2011
Filed:
Nov 15, 2006
Appl. No.:
11/599877
Inventors:
Gabriel Menard - Medford MA, US
Eric Gaalaas - Bedford MA, US
Assignee:
Analog Devices, Inc. - Norwood MA
International Classification:
H03F 3/38
US Classification:
330 10, 381 941, 381 945
Abstract:
Noise reduction for a switching amplifier system having a differential output stage and demodulator filter responsive to complementary PWM signals includes generating in-phase PWM signals and gradually adjusting their duty cycle between a low duty cycle and the full duty cycle of the complementary PWM signals, generating full duty cycle PWM signals and gradually shifting their relative phase between in-phase and out-of-phase; and in response to a turn-on signal, adjusting the in-phase PWM signals from low to full duty cycle and shifting the relative phase from in-phase to out-of-phase, and in response to a turn-off signal shifting the relative phase from out-of-phase to in-phase and adjusting the in-phase PWM signals from full to low duty cycle for maintaining balanced charge on the demodulation filter to reduce audible noise.

Usb Isolator With Advanced Control Features

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US Patent:
8432182, Apr 30, 2013
Filed:
Jul 16, 2009
Appl. No.:
12/504153
Inventors:
Eric Gaalaas - Bedford MA, US
Mark Cantrell - Windham NH, US
Assignee:
Analog Devices, Inc. - Norwood MA
International Classification:
H03K 19/003
US Classification:
326 30, 326 21
Abstract:
A USB-based isolator system conveys USB signals between a pair of galvanically isolated circuit systems and supports controlled enumeration by a downstream device on upstream USB signal lines. The isolator system provides a multi-mode voltage regulator to support multiple voltage supply configurations. The isolator system further provides control systems for each of the isolated circuit systems and provides robust control in a variety of start up conditions. Additionally, the isolator system includes refresh timers and watchdog mechanisms to support persistent operation but manage possible communication errors that can arise between the isolated circuit systems.

Multi-Bit Digital Signal Isolator

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US Patent:
8477856, Jul 2, 2013
Filed:
Mar 31, 2009
Appl. No.:
12/414756
Inventors:
Eric Gaalaas - Bedford MA, US
Assignee:
Analog Devices, Inc. - Norwood MA
International Classification:
H04B 1/38
H04B 3/00
US Classification:
375258, 326 60, 375219
Abstract:
The invention is directed to a multi-bit digital signal isolation system including a plurality of micro-transformers, each having a primary winding and a secondary winding, a transmitter circuit receiving a multi-bit signal and transmitting an encoded logic signal across the plurality of micro-transformers corresponding to the multi-bit signal, the primary winding of each micro-transformer receiving a signal corresponding to one of at least three possible states, and a receiver circuit receiving the encoded logic signal from the secondary windings of the plurality of transformers, decoding the encoded logic signal and reconstructing the received multi-bit signal based upon the decoded signal.

Usb Isolator With Advanced Control Features

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US Patent:
8525547, Sep 3, 2013
Filed:
Mar 22, 2012
Appl. No.:
13/427708
Inventors:
Eric Gaalaas - Bedford MA, US
Mark Cantrell - Windham NH, US
Assignee:
Analog Devices, Inc. - Norwood MA
International Classification:
H03K 19/003
US Classification:
326 30, 326 21
Abstract:
A USB-based isolator system conveys USB signals between a pair of galvanically isolated circuit systems and supports controlled enumeration by a downstream device on upstream USB signal lines. The isolator system provides a multi-mode voltage regulator to support multiple voltage supply configurations. The isolator system further provides control systems for each of the isolated circuit systems and provides robust control in a variety of start up conditions. Additionally, the isolator system includes refresh timers and watchdog mechanisms to support persistent operation but manage possible communication errors that can arise between the isolated circuit systems.

Usb Isolator With Advanced Control Features

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US Patent:
8564327, Oct 22, 2013
Filed:
Mar 22, 2012
Appl. No.:
13/427704
Inventors:
Eric Gaalaas - Bedford MA, US
Mark Cantrell - Windham NH, US
Assignee:
Analog Devices, Inc. - Norwood MA
International Classification:
H03K 19/003
US Classification:
326 30, 326 21
Abstract:
A USB-based isolator system conveys USB signals between a pair of galvanically isolated circuit systems and supports controlled enumeration by a downstream device on upstream USB signal lines. The isolator system provides a multi-mode voltage regulator to support multiple voltage supply configurations. The isolator system further provides control systems for each of the isolated circuit systems and provides robust control in a variety of start up conditions. Additionally, the isolator system includes refresh timers and watchdog mechanisms to support persistent operation but manage possible communication errors that can arise between the isolated circuit systems.

Circuits, Systems And Methods For Processing Data In A One-Bit Format

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US Patent:
60115017, Jan 4, 2000
Filed:
Dec 31, 1998
Appl. No.:
9/224389
Inventors:
Xue-Mei Gong - Austin TX
John James Paulos - Austin TX
Mark Alexander - Austin TX
Eric Gaalaas - Austin TX
Dylan Hester - Austin TX
Assignee:
Cirrus Logic, Inc.
International Classification:
H03M 166
US Classification:
341150
Abstract:
Digital-to-analog conversion circuitry 100 is shown including a path for processing data in a 1-bit format. First portion of an analog finite impulse response filter 300 includes pre-selected number of delay elements 301 for receiving stream of data in the 1-bit format and outputting a plurality of signals in response. A switched capacitor digital-to-analog converter 106 forms a second portion of the finite impulse response filter 301 and has a plurality of elements each receiving one of the plurality of signals as selected to effectuate a set of filter coefficients, converter 106 summing the plurality of signals and outputting an analog data stream.
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Eric C Gaalaas from Bedford, MA, age ~52 Get Report