Engineer Project

SUMMARY

• Total * years of strong experience in industrial domain with respect to hardware design & development, testing & certification per standards like DO-160, IEC, CISPR, EN& UL.

• Expertise in Product design from project planning phase till certification.

• Experience in designing the products to meet stringent EMI-EMC requirements & certification of products.

• Hands on experience in reversing engineering & prototyping projects.

• Involved in development & Review of requirements, schematics, BOM, high level & detailed Design document, PCB, Gerber, Module test plan, System test plan & EMI-EMC test results.

• Major involvement areas:

Hardware development:

Microcontrollers : 8 ,16 bit Microcontrollers

PIC18F8722 & PIC18F25J10 – Microchip

ATxmega128A1 – Atmel

H8/3062-Renesas

Mixed signal designs: Control Circuits, Motor Drive circuits,communication circuits like RS232,RS485,I2C,USB and Wi-Fi

Reliability & Compliance testing:

Environmental, HALT Shock, storage and vibration testing

Manufacturing:

Good understanding on SMT,WAVE,REFLOW assembly

Good understanding on Functional and In-circuit testing

• Experience in Design for Manufacturability and testability.

• Experience in Design High Volume products.

• Experience in team/competency development based on the customer requirements in hardware development and testing

• Excellent problem solving and right decision making capabilities, coupled with good communication and interpersonal skills.

• Proficient in CMMI Level 5 V1.2 Processes

EDUCATION

• Bachelor’s in Electronics & Communication Engineering, Andhra University, India

SOFTWARE/

TOOLS

CONFIGURATION MANAGEMENT TOOLS USED

• Windows operating System

• MS office 2007 (Excel, Word, PowerPoint, Outlook, Visio and Project.)

• Schematic & PCB design tools like Cadence Allegro Ver 16.0,Orcad,Zuken Cadstar, Mentor Graphics PADS

• Exposure to C language, Visual basic 6.0

• Embedded Tools like Hi Tech C, MPLAB, AVR STUDIO, C18 and FDT

• Simulation tools: PSpice

• Visual Source Safe Ver 6.0 (VSS)

WORK EXPERIENCE • LARSEN & TOUBRO INTEGRATED ENGINEERING SERVICES

MYSORE, INDIA (NOV 2006 to TILL DATE)

PROJECT

HIGHLIGHTS PROJECT 1: Electrical Power Generation (EPGS) and Distribution (EPDS) Systems

Project Description :

EPGS system is responsible for the generation of the primary power for the electric system. This system includes Variable Frequency Generators (VFG) controlled by a dedicated Generator Control Unit (GCU) and along with the Auxiliary Power Generator unit (APU Gen). EPDS system is responsible for the distribution of the primary and the secondary power to various sub systems and the LRUs based on the end load power demands.

Role : EMC Design Engineer

Contribution

• Understand EMC, HIRF, and Lightning Protection specification requirements.

• Prepare the EMC, HIRF, and Lightning Protection Control Plan that implements the program objectives.

• Provide detailed design assistance to system, equipment, component, and manufacturing engineers.

• Prepare test plans and reports pertinent to EMC, HIRF, and Lightning Protection engineering evaluation and Testing.

• Participate in the Development and Qualification EMI testing and final test report generation.

PROJECT 2: Furnace Control

Project Description :

The control monitors the status of a single- or two-stage heating/cooling

room thermostat, limit switches, inducer pressure switch(es), and flame

sensor to control operation of the inducer motor (regardless of type), ECM

blower motor, hot surface igniter, gas valve (single-, two-stage, two-stage

with a throttling valve, or modulating), and two outputs which supply voltage

to an electronic air cleaner and 24 VAC humidifier. The control has a

microprocessor that contains the software which determines the sequence of

operation and timings for purge periods, trial-for-ignition, flame proving,

Lockout, and blower delays. In addition the control also monitors various

input and output devices and records instances of furnace component failures

and provides a flashing LED signal to assist the service technician.

Role : Hardware Design/Product Engineer

Contribution

• Involved in requirements gathering, analysis, design, development, testing and qualification.

• Design of hardware architecture

• Preparing High level and detailed level design documents.

• Co-ordination with CAD Team for Schematic generation, Component placement, and routing and also Gerber generation.

• Module Level Testing.

• Functional test plan preparation & testing

• EMI/EMC Compliance Testing

• The complete project was developed to comply with the following standards IEC60335-1,FCC Part B & IEC61000-4-X

PROJECT 3: Intelligent Lock System

Project Description :

Wireless Lock Module (WLM), a radio module talks to the Control Unit (ACU) using a proprietary protocol and communicate with WAP using a proprietary wireless protocol.

WavePro Access Point (WAP) manages the wireless network with up to 32 WLMs using the proprietary protocol and transfers data from/to multiple WLMs to/from a central server which will be connected to WAP over Ethernet. The WAP consists of a Main board with two plug-in modules; WWM and the WMC. The WWM (Wireless WAP Module) is a radio module with WAP application firmware and primarily communicate with the WLM module .The WMC (Wireless Main Controller), which is the brain of WAP, communicates with central server over Ethernet via the Ethernet module (EM). The EM in turn can be a wired (10/100 BaseT) module OR the wireless (802.11b/g) module.

Role : Hardware Design/Product Engineer

Contribution

• Review of High level requirements & release of requirements document

• Involved in requirements gathering, analysis, design, development, testing and qualification.

• Design of hardware architecture

• Preparing High level and detailed level design documents.

• Co-ordination with CAD Team for Schematic generation, Component placement, and routing and also Gerber generation.

• Module Level Testing.

• Functional test plan preparation & testing

• EMI/EMC Compliance Testing

• Problem solving and timely decision making capabilities of self and the team were appreciated by the customer.

PROJECT 4: Water/gas Meter Readout System (WMRS)

Project Description :

Water/gas Meter Readout System (WMRS) as an alternate for the conventional mechanical water/ gas meters with odometer based display. The readout system will be capable of reading the meter which has multiple digits (3 to 10) of display. Each digit has a wheel, which displays numbers 0-9. The sensing mechanism will be done using inductive coupling. Metal plates of different dimensions/ shape will be placed underneath each digit on the numbered wheels. Different sized metal plate corresponds to different numbers.

Role : Hardware Design Engineer

Contribution

• Involved in requirement gathering and design of functional model for concept proof.

• Design of hardware architecture for functional model

• Testing the functional model to display 2-digits on LCD.

PROJECT 5: Scroll Compressor Motor Protection

Project Description :

This is a microcontroller based circuit board that monitors the operation of the large scroll compressor based on various sensor inputs from inside and outside the compressor. If an unsafe operation is sensed, control will shut down the compressor by turning off the pilot voltage to the contactor that feeds power to the compressor. Control provides a visual indication of the status of the compressor operation by means of a two LED. Control is capable of communication with Compressor ID module by means of I2C based low level communications. Control is also capable of communicating with UART communication for Fault history retrieval and Analog & digital data info transfer.

Role : Hardware Design Engineer

Contribution

• Involved in requirements gathering, analysis, design, development, testing and qualification.

• Design of hardware architecture

• Preparing High level and detailed level design documents.

• Co-ordination with CAD Team for Schematic generation, Component placement, and routing and also Gerber generation.

• Module Level Testing.

• Functional test plan preparation & testing

• EMI/EMC Compliance Testing

• The complete project was developed to comply with the following standards IEC60335-1, EN60335-1, FCC Part B & IEC61000-4-X.

PROJECT 6: Control Module

Project Description :

Control Module is microprocessor based circuit board that monitors the operation of the Compressor based on various sensor inputs from inside and outside the compressor. If an unsafe operation is sensed Control Module shall shut down the compressor by turning off the pilot voltage to the contactor that feeds power to the compressor. Control Module provides a visual indication of the status of the compressor operation by means of a bicolor LED and LCD. Control Module is capable of two-way communication with an E2 rack controller by means of ECT Modbus data communications. Control Module can communicate with third party rack controllers through standard Modbus.

Role : EMI/EMC Test Engineer

Contribution

• Selection of alternate components & BOM preparation.

• Module test plan preparation & Module testing

• Functional test plan preparation & testing

• EMI/EMC test plan preparation & testing

• Review & release of Technical Construction File (TCF) for UL and CE certification.

• The complete project was developed to comply with the following standards IEC60335-1, FCC Part B & IEC61000-4-X.

PROJECT 7: Sensor Module

Project Description :

The sensor module is a microprocessor based circuit board that monitors the compressor voltages & current. If an unsafe operation is sensed, sensor module will inform the control module, which will shut down the compressor by turning off the pilot voltage to the contactor that feeds power to the compressor. The functionality of the sensor module is listed below.

Role : EMI/EMC Test Engineer

Contribution

• Selection of alternate components & BOM preparation.

• Module test plan preparation & Module testing

• Functional test plan preparation & testing

• EMI/EMC test plan preparation & testing

• Review & release of Technical Construction File (TCF) for UL and CE certification.

• The complete project was developed to comply with the following standards IEC60335-1, FCC Part B & IEC61000-4-X.

PERSONAL INFORMATION • E-mail : ************.********@*****.***

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