Sai Karthik Janjhyam
Gannavaram
Summary
Experienced Senior Engineer specializing in filter topology development, hardware integration, and PCB design validation. Proven ability in layout optimization and circuit analysis, driving successful integration efforts for high-performance power converters
Overview
5
5
years of professional experience
Work History
Senior Engineer
Bosch Global Software technologies
Bengaluru
01.2024 - Current
- Developed end-to-end filter topologies for HVDC systems, ensuring compatibility with 11kW charger output and 3kW DC-DC inputs.
- Conducted rigorous testing and validation from component selection to design verification.
- Led PCB integration by coordinating data delivery across domains, aligning with project release schedules.
- Designed multiple AC and HV filter topologies, emphasizing compactness for European and North American markets.
- Ensured compliance with ISO 17409, SAE 2894, IEC 61000 (AC filters), and VW80000, VW80303, IEC 60384 (HV filters) for safety and EMC standards.
- Created detailed schematic inputs by accurately selecting components, determining CDCI values, and designing robust isolation matrices for high voltage applications.
- Developed comprehensive test plans to validate circuit performance across various assessments, including inrush current and thermal evaluations.
- successfully completed an HV ripple test at the vehicle level to confirm the design of the filter's ability to resist various HV battery SOC levels
- EMC validation testing for the 11kW onboard chargers and the 3kW converter was successfully executed
- Provided cross-functional 2D and 3D placement guidance to mechanical teams for optimized design integration.
- worked with mechanical teams to solve cross-domain issues, such as vibrations to enhance PCB contact and thermal performance by enhancing cooling to have components that live longer.
- Collaboration with mechanical colleagues to design components including springs, joint-sets, clamps, and metal sheets that reduce internal product noise, such as common mode noise, without compromising the product's ability to satisfy legal requirements during validation tests.
- Mentored junior engineers, providing guidance and support to development processes and technical skills, professional growth and project success.
- Led team meetings to discuss project progress and address issues.
Associate Software Engineer
Bosch Global Software Technologies
Bengaluru
09.2021 - 12.2023
- Conducted pre-compliance tests during design phase for radio frequency issues, ensuring adherence to legal standards.
- Validated 3kW DC-DC converters through conducted emission, radiated emission, ESD, and immunity testing to ensure regulatory compliance.
Education
M.Tech - Power Electronics And Drives
Manipal Institute of Technology
Manipal08-2021
B.Tech - Electrical and Electronics Engineering
CMR College of Engineering And Technology
Hyderabad05-2019
Skills
- Filter design optimization
- Hardware integration
- PCB design validation
- DC-DC converter testing
- Charger testing
- Pre-compliance testing
- Circuit analysis
- Circuit test planning
- Thermal analysis
- LTspice
- Matlab
- Schematics
- Layout Optimization
Measurement Equipment
- Impedance Analyse
- High Voltage supplies
- Bode analyser
- LCR, Milliohm meters
- Oscilloscopes
- EMI/EMC Receiver
- Near Field probes
Software Tools
- LTspice
- Matlab
- Plecs
- Canoe
- INCA
- Microsoft tools (Visio,Project,Powerpoint,Excel)
- CST
Timeline
Senior Engineer
Bosch Global Software technologies
01.2024 - Current
Associate Software Engineer
Bosch Global Software Technologies
09.2021 - 12.2023
M.Tech - Power Electronics And Drives
Manipal Institute of Technology
B.Tech - Electrical and Electronics Engineering
CMR College of Engineering And Technology