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Marc Tan Phones & Addresses

  • 3613 Somerset Ave, Castro Valley, CA 94546
  • 590 La Conner Dr, Sunnyvale, CA 94087 (408) 245-0370
  • San Jose, CA
  • Eugene, OR
  • Wilsonville, OR
  • Santa Rosa, CA
  • 29560 SW Montebello Dr, Wilsonville, OR 97070

Resumes

Resumes

Marc Tan Photo 1

Technical Lead

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Location:
Sunnyvale, CA
Industry:
Computer Software
Work:
Pt. Independent Research & Advisory Indonesia
Technical Lead

Chartmetric
Software Engineer

42 Silicon Valley Mar 2018 - Oct 2018
Ambassador

Donorbox 2014 - 2018
Co-Founder and Product Architect

Singapore Armed Forces (Saf) Feb 2015 - Feb 2017
Work Innovation Team Lead, Ammunition Specialist
Education:
Hwa Chong Institution 2009 - 2014
Tsinghua University
Bachelors, Computer Science
Skills:
Software Development
Product Management
Machine Learning
Javascript
Git
Python
C
Business Development
Ux/Ui Design
Rest Api
Sql
Postgresql
Webgis
Languages:
English
Indonesian
Certifications:
Neural Networks and Deep Learning
Improving Deep Neural Networks: Hyperparameter Tuning, Regularization and Optimization
Structuring Machine Learning Projects
Bloomberg Market Concepts
Micromasters In Data, Economics, and Development Policy
Marc Tan Photo 2

Senior Apps Engineer

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Location:
San Francisco, CA
Industry:
Semiconductors
Work:
Supertex Apr 2004 - Jun 2014
Senior Apps Engineer

Microchip Technology Apr 2004 - Jun 2014
Senior Apps Engineer

Rototec Brushless Drives Jan 2000 - May 2004
Chief Engineer

Chicago Public Schools 1995 - 1999
Engineer Manager

Electronic Power Conditioning Jan 1988 - Dec 1994
Hardware Design Engineer
Education:
Industrial Design Engineering, Tu Delft 1980 - 1986
Masters, Master of Science In Electrical Engineering, Electronics Engineering, Electronics
Skills:
Semiconductors
Electronics
Mixed Signal
Analog
Ic
Power Management
Power Electronics
Semiconductor Industry
Pcb Design
Analog Circuit Design
Asic
Integrated Circuit Design
Circuit Design
Power Supplies
Product Development
Electrical Engineering
Hardware Architecture
Pcb Layout Design
Application Specific Integrated Circuits
Led Lighting Systems
Integrated Circuits
Lighting Control
Marc Tan Photo 3

Marc Tan

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Skills:
Microsoft Excel
Microsoft Office
Microsoft Word
Powerpoint

Publications

Us Patents

Led Driver With Low Harmonic Distortion Of Input Ac Current And Methods Of Controlling The Same

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US Patent:
8130519, Mar 6, 2012
Filed:
Nov 12, 2008
Appl. No.:
12/269512
Inventors:
Alexander Mednik - Campbell CA, US
Rohit Tirumala - Sunnyvale CA, US
Marc Tan - Sunnyvale CA, US
Assignee:
Supertex, Inc. - Sunnyvale CA
International Classification:
H02M 7/5383
H02M 5/42
US Classification:
363 74, 363 90
Abstract:
A power supply circuit for powering a load at constant current has a rectifier stage for receiving an AC voltage input and for producing a first substantially DC voltage. A first capacitor is attached to the load. A charge-pump is attached to an output of the rectifier stage and to the load for providing power factor correction and for converting the first substantially DC voltage to a second substantially DC voltage at the first capacitor. The charge pump is prevented from conducting energy back into the output of the rectifier stage. The charge pump delivers energy to a charge pump output, the energy being delivered directly instead of being stored. A converter stage is attached to the load and the first capacitor. The converter stage is used for converting voltages at the first capacitor and the charge pump to an output DC current. The converter stage has a switch for periodically connecting a first series-coupled circuit of the charge pump to the output of the rectifier stage.

Led Driver With Low Harmonic Distortion Of Input Ac Current And Methods Of Controlling The Same

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US Patent:
8587278, Nov 19, 2013
Filed:
Nov 7, 2011
Appl. No.:
13/290260
Inventors:
Alexander Mednik - Campbell CA, US
Rohit Tirumala - Sunnyvale CA, US
Marc Tan - Sunnyvale CA, US
Assignee:
Supertex, Inc. - Sunnyvale CA
International Classification:
G05F 1/00
US Classification:
323282, 323283
Abstract:
A method of controlling an output current of a power supply circuit comprising a first converter stage for receiving an input voltage, a second converter stage delivering a regulated output current, a controlled switch for conducting the input current and the output current, the method comprising: detecting a portion of the input current conducted by the controlled switch; detecting a current in the controlled switch; deriving a difference between the current in the controlled switch and the portion of the input current conducted by the controlled switch; and maintaining the difference at a reference level.

Control Circuit And Method For Regulating Average Inductor Current In A Switching Converter

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US Patent:
20090302774, Dec 10, 2009
Filed:
Jun 9, 2008
Appl. No.:
12/135302
Inventors:
ALEXANDER MEDNIK - Campbell CA, US
Rohit Tirumala - Sunnyvale CA, US
Marc Tan - Sunnyvale CA, US
International Classification:
H05B 37/02
G05F 5/00
US Classification:
315209 R, 323299
Abstract:
A switching power converter has an input voltage source. An output load is coupled to the input voltage source. An inductive element is coupled to the load. A switch is coupled to the inductive element. A current reference input is provided. A control circuit is coupled to the switch and the current reference input for activating and deactivating the switch. The inductive element receives power from the input voltage source when the switch is activated and conducting continuous current. The control circuit deactivates the switch after a controlled delay time when the current in the inductive element and the switch exceeds the current reference input so that an average current in the inductive element is determined by a magnitude of the current reference input.

Method And System For Driving Leds From A Source Of Rectified Ac Voltage

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US Patent:
20130187551, Jul 25, 2013
Filed:
Jul 23, 2012
Appl. No.:
13/555993
Inventors:
Benedict C.K. CHOY - Sunnyvale CA, US
Marc Tan - Sunnyvale CA, US
Assignee:
Supertex, Inc. - Sunnyvale CA
International Classification:
H05B 37/02
US Classification:
315122
Abstract:
The present inventions relate to a control circuit for controlling a plurality of serially connected groups of LEDs. A control unit is connected in parallel to each group of a plurality of serially connected groups of LEDs. Each LED group is connected to the adjacent group of LEDs. The control unit is connected to a group of LEDs. The control unit performs the functions of voltage regulating/current regulating/bypass for the associated group of LEDs. The control unit can act as a by-pass unit permitting current to flow through the control unit rather than through the associated group of LEDs.

Buck-Boost Controller Achieving High Power Factor And Valley Switching

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US Patent:
20170264203, Sep 14, 2017
Filed:
Feb 27, 2017
Appl. No.:
15/442886
Inventors:
- Chandler AZ, US
Alexander Mednik - Cambell CA, US
Marc Tan - Sunnyvale CA, US
Rohit Tirumala - Sunnyvale CA, US
Assignee:
Microchip Technology Incorporated - Chandler AZ
International Classification:
H02M 3/335
H02M 1/08
Abstract:
A high power-factor buck-boost converter having a rectified low-frequency AC line voltage input and a DC output is provided. The converter may include a magnetic element, a controlled switch having a gate terminal and a drain terminal that is coupled to the magnetic element, a rectifier diode coupled to the magnetic element, an output smoothing capacitor coupled to the rectifier diode, and a control circuit having an output coupled to the gate terminal of the controlled switch for repeatedly turning the controlled switch off for a first time duration and on for a second time duration. The second time duration may be determined as a function of the first time duration immediately preceding the second time duration.

Circuit And Method For Active Crosstalk Reduction In Multiple-Channel Power Supply Controllers

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US Patent:
20150372594, Dec 24, 2015
Filed:
Jun 17, 2015
Appl. No.:
14/742571
Inventors:
- Chandler AZ, US
ROHIT TIRUMALA - Sunnyvale CA, US
MARC TAN - Sunnyvale CA, US
SIMON KRUGLY - San Jose CA, US
International Classification:
H02M 3/158
Abstract:
A comparator sense input is disconnected from a current sense resistor for the duration of a switching transition in an adjacent channel(s). Instead, the sense input receives a signal of the magnitude and the slew rate sampled prior to the transition.

Output Current Control In A Boundary Conduction Mode Buck Converter

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US Patent:
20150022168, Jan 22, 2015
Filed:
Jul 22, 2013
Appl. No.:
13/947894
Inventors:
Alexander MEDNIK - Campbell CA, US
Simon Krugly - Sunnyvale CA, US
Marc Tan - Sunnyvale CA, US
International Classification:
H02M 3/156
US Classification:
323282
Abstract:
A switching power converter has an input voltage source. An output load is coupled to the input voltage source. An inductive element is coupled to the load. A switch is coupled to the inductive element. A control circuit is coupled to the switch and the inductive element for activating and deactivating the switch, the control circuit activating and deactivating the switch based on a negative voltage drop across a resistive element of the control circuit.

Line Current Reference Generator

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US Patent:
20150016166, Jan 15, 2015
Filed:
Jul 10, 2013
Appl. No.:
13/938229
Inventors:
- Sunnyvale CA, US
Marc TAN - Sunnyvale CA, US
International Classification:
H02M 7/04
US Classification:
363 90
Abstract:
The invention generally relates to the field of power factor correction and specifically to generation of a reference waveform which is proportional to line voltage and is controllable in amplitude.
Marc P Tan from Castro Valley, CA, age ~62 Get Report