Patents:
V. M. Iyer, H. B. Sandhibigraha, "System and Method for Converting Alternating Current (AC) to Direct Current (DC)," filed under application number 202341080811. Granted on November 28, 2023.
V. M. Iyer, H. B. Sandhibigraha, "A Multi-port Converter System and Method for Converting Alternating Current (AC) to Direct Current (DC)," filed under application number 202443055076 on July 18, 2024. [Published: August 02, 2024]
V. M. Iyer, H. B. Sandhibigraha, G. Gurrala, "Multiport Electric Vehicle Charging Station and a Method of Controlling the Same," filed under application number 202441056849 on July 26, 2024. [Published: August 02, 2024]
Journals:
H. B. Sandhibigraha, M. Palmal and V. Mahadeva Iyer, "Soft Start-Up Scheme for a Current-Fed Single-Stage Isolated AC–DC PFC Converter," in IEEE Transactions on Industrial Electronics, doi: 10.1109/TIE.2025.3621600.
H. B. Sandhibigraha and V. M. Iyer, "ZVS Analysis and Dead Time Selection of a Multiwinding Transformer Based Multiport AC-DC PFC Converter," in IEEE Transactions on Power Electronics, doi: 10.1109/TPEL.2025.3631486.
N. Rajput, H. B. Sandhibigraha, N. Agrawal and V. M. Iyer, "An Empirical Model Informed Neural Network Core Loss Predictor for Soft Magnetic Materials," in IEEE Transactions on Power Electronics, doi: 10.1109/TPEL.2025.3557218.
M. Chen et al., "MagNet Challenge for Data-Driven Power Magnetics Modeling," in IEEE Open Journal of Power Electronics, doi: 10.1109/OJPEL.2024.3469916.
Conferences:
H. B. Sandhibigraha and V. M. Iyer, "Modulation Schemes for an Isolated Active Clamp Boost PFC Converter," 2025 IEEE Energy Conversion Congress \& Exposition Asia (ECCE-Asia), Bengaluru, India, 2025, pp. 1-6, doi: 10.1109/ECCE-Asia63110.2025.11111956.
H. B. Sandhibigraha and V. M. Iyer, "An Isolated Multi Active Bridge Type Soft Switched AC-DC Boost PFC Converter," 2024 IEEE International Communications Energy Conference (INTELEC), Bengaluru, India, 2024, pp. 1-6, doi: 10.1109/INTELEC60315.2024.10678990
H. B. Sandhibigraha and V. Mahadeva Iyer, "Wide Output Range Soft-switched Single-Stage Dual Active Bridge Type AC-DC Boost PFC Converter," 2024 IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, USA, 2024, pp. 34-41, doi: 10.1109/APEC48139.2024.10509426.
N. Rajput, H. B. Sandhibigraha and V. Mahadeva Iyer, "Analysis and Design Trade-Offs of a Multi-Winding High-Frequency Transformer for a Battery Charger," 2024 IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, USA, 2024, pp. 854-860, doi: 10.1109/APEC48139.2024.10509266.
H. B. Sandhibigraha, M. Palmal, and V. M. Iyer, “Impact of Current Controller Design on the Current Zero Crossing Distortion in an Isolated Active Clamp Boost PFC Converter,” 2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), Jaipur, India, 2022, pp. 1-6, doi: 10.1109/PEDES56012.2022.10080051.
H. B. Sandhibigraha, M. Palmal, S. P. S. Rajawat, G. Gurrala and V. M. Iyer, “A Multi-port Isolated Active Clamp Boost PFC-Converter based Charger for Electric Vehicles,” 2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), Jaipur, India, 2022, pp. 1-6, doi: 10.1109/PEDES56012.2022.10080254.