SASIREKHA CHINNARAJ

*/****, *********, ************* (via), Coimbatore -641201.

adnkai@r.postjobfree.com

+91-971*******

CAREER OBJECTIVE:

To place myself in a challenging position of a growing organization where I would be able to utilize my capabilities to the best extend and add value to both the organization and my career.

PROFESSIONAL EXPERIENCE:

Working as a Hardware Engineer - PCB Design & Testing (R&D) at VERSA DRIVES PRIVATE LIMITED, Coimbatore From July 2017 to Present.

RESPONSIBILITIES:

Experienced in power electronic hardware Testing and debugging.

Experienced in hand made PCB assembling (PCBA), soldering and de-soldering electronic component (SMD and PTH) and PCB inspection.

Experience in creating footprint with 3D model, Standard /Custom Attributes implementation as per IPC7351 (A, B and C) standard.

Having good Experience in SURGE TESTING.

Maintain R&D electronic stack handling and hardware part alternate database.

Update and control the test apparatus status and calibrate as per standard.

Managing all the test procedures and reports documents.

Handle store inventory for R&D, issuing and returning of material to and from the store.

Planning and organizing new and old product test process and time scheduling.

Update the design bugs and changes in Bugzilla and update the test procedure in version control tool (SVN).

Analysis and update the design feasibility report for production and customer.

EDUCATIONAL DETAILS:

MBA Technology Management with 70%, Bharathiyar University, Coimbatore-2020.

B.E ECE with 78%, Tamilnadu College of Engineering, Coimbatore – 2017.

HSC with 88%, Bharathiya Vidya Mandhir matric.Hr. Sec.School, Pollachi- 2013.

SSLC with 87%, Shree Sakthi matric.Hr. Sec.School, Coimbatore-2011.

SKILLS:

Schematic Tools: OrCAD Capture 16.6 &17.2.

Footprint: Cadence Allegro 16.6 &17.2, Altium V 17.0.2

Layout Tools: Cadence Allegro 16.6&17.2, Altium V17.0.2

Documentation tools: MS-office, SVN.

Time Management tool: E-Hours.

Debugging issues update in Bugzilla.

PROFESSIONAL SUMMARY:

Knowledge in creating footprint with 3D model, Standard /Custom Attributes implementation as per IPC7351 (A, B and C) standard.

Knowledge in the creepage and clearance for high voltage and high-power circuit PCB design.

Knowledge in schematic symbol and layout footprint creation as per IPC-7351 standard.

Knowledge in component placement and PCB routing.

Knowledge in creating BOM (Bill of material).

Closely interact with Mechanical and design team regarding component placement and other requirements.

Circuit debugging.

Closely working with firmware and testing team.

Working with cross functional team in analyzing and solving technical problems.

Deep understanding the schematic and layout (mixed signals circuit analysis).

Failure analyses like DFMEA and worst-case circuit analysis (WCCA).

Developing validation plans and documenting the end results.

Responsible for generating all design documents and BOM.

Experience in power convertor, HVDC and HVAC invertors testing and debugging.

Experience and knowledge on test instruments such as Digital Storage Oscilloscope (DSO), LCR meter, Power analyzer, torque and speed analyzer and Programmable Power Supply (PPS).

Knowledge of ESD Safety procedures & Lab Safety standards.

Knowledge in static and dynamic motor drive testing (5 volt to 800volt DC).

Entry level testing of SMD and PTH component as per the design standards.

Maintaining R&D project Bill of Material (BOM) and MRN for procurement and designing.

PROJECTS:

Project #1 Solar pump Driver

Obtained the pump maximum output torque using MPPT (Maximum Power Point Tacking) method and this method is tested as per MNRE standard and global MPPT algorithm using simulator and real time solar. Pump water output is measured using flow meter and drive power is analyzed by power analyzers. Initial drive test is done by torque generator as per the drive specifications. Pump communication signal are tested and verified by DSO and signal analyzer.

Instrument Used: Power analyzer, DSO, Signal analyzer, Flow meter and dynamometer (torque generator)

Project #2 E-Rickshaw Drive

E-Rickshaw is a complete model of Electrical Vehicle (EV) from controlling of key start to break operation. This project contains the communication system and driver control system. Mechanical brake system testing for system static operation control and full load test is done by more than 5 passengers in dynamic loading (start with heavy load and running time loading). Done Hill climbing test at 25degree angle inclination. Electrical break testing is done in both low friction and high friction surface in slop and normal surface.

Instrument Used: Power analyzer, DSO, Signal analyzer, speed-o-meter, dynamometer (torque generator)

Project #3 Super Fan

Super Fan is a Modern smart and energy saving and won two-time BEE national awarded ceiling fan. BLDC motor controller for controlling speed and power as per the standard. Design and testing Switched Mode Power Supply (SMPS) from 230 to 23 voltage from controlling total harmonic and voltage fluctuation. IR remote controller module signal strength using DSO and power analyzer. MOSFET dead time calculation and debugging of hardware and software design analyze.

Instrument Used: Power analyzer, DSO, Signal analyzer, speed-o-meter.

AWARDS & ADDITIONAL RESPONSIBILITIES:

“BEST OUT GOING STUDENT AWARD” in the year of 2013-2017 from Tamilnadu College of Engineering, Coimbatore.

“LIBRARY CO-ORDINATOR” in Versa Drives Private limited, Coimbatore from 2017 to till now.

“Best Team Player Award - 2018-2019” in Versa Drives Private limited, Coimbatore.

PERSONAL DETAILS:

Date of birth : 12.11.1995

Father’s Name : Chinnaraj

Mother’s Name : Rukmani

Marital status : Unmarried

Linguistic Skills : English, Tamil

Declaration

I hereby declare that all the given details above are true to the best of my knowledge and belief.

Place: Coimbatore SIGNATURE

Date: (C. SASIREKHA)

Contact this candidate