Sharabash, H., D.V.M.M. Krishna, N. Fröhleke, and Joachim Böcker. “High Efficiency Photovoltaic Power Conditioning System.” In PCIM Europe Conference, Nürnberg, Germany, 2013.

Böcker, Joachim, and O. Buchholz. “Can Oversampling Improve the Dynamics of PWM Controls?”https://doi.org/10.1109/icit.2013.6505952__In 2013 IEEE International Conference on Industrial Technology (ICIT). IEEE, 2013.https://doi.org/10.1109/icit.2013.6505952 .

Cao, Zhiyu, Junbing Tao, Norbert Fröhleke, and Joachim Böcker. “Dynamical Modeling for Series-Parallel Resonant Converter under Optimized Modulation.”https://doi.org/10.1109/apec.2013.6520481__In 2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE, 2013.https://doi.org/10.1109/apec.2013.6520481 .

Krishna, D. V. M. M., N. Fröhleke, Joachim Böcker, and H. Preckwinkel. “A Simplified Mathematical Model for DC-Balancing and Capacitor Ripple Reduction in 3-Level Inverters.”https://doi.org/10.1109/icit.2013.6505715__In 2013 IEEE International Conference on Industrial Technology (ICIT). IEEE, 2013.https://doi.org/10.1109/icit.2013.6505715 .

Preckwinkel, Heiko, Andreas Bünte, Joachim Böcker, Norbert Fröhleke, and Krishna Dora. “A Novel Low Cost Solar Central Inverters Topology with 99.2% Efficiency.”https://doi.org/10.1109/epe.2013.6631769__In 2013 15th European Conference on Power Electronics and Applications (EPE). IEEE, 2013.https://doi.org/10.1109/epe.2013.6631769 .

Solanki, J., N. Fröhleke, Joachim Böcker, and P. Wallmeier. “A Modular Multilevel Converter Based High-Power High-Current Power Supply.”https://doi.org/10.1109/icit.2013.6505713__In 2013 IEEE International Conference on Industrial Technology (ICIT). IEEE, 2013.https://doi.org/10.1109/icit.2013.6505713 .

Lönneker, Michael, and Joachim Böcker. “A Novel Space Vector Modulation Strategy for Thyristor Matrix Converters.”https://doi.org/10.1109/epe.2013.6631954__In 2013 15th European Conference on Power Electronics and Applications (EPE). IEEE, 2013.https://doi.org/10.1109/epe.2013.6631954 .

Peters, Wilhelm, Oliver Wallscheid, and Joachim Böcker. “A Precise Open-Loop Torque Control for an Interior Permanent Magnet Synchronous Motor (IPMSM) Considering Iron Losses.” In IECON 2012-38th Annual Conference on IEEE Industrial Electronics Society, 2877–2882, 2012.

Figge, Heiko, Norbert Fröhleke, Joachim Böcker, and Frank Schafmeister. “Cost-Effective Implementation of a Digitally Controlled LLC Resonant Converter for Application in Server- and Telecom-PSUs.” In Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), 1–8. Nuremberg, Germany: IEEE, 2012.

Cao, Z., F. H. Nzeugang, J. Tao, N. Fröhleke, and Joachim Böcker. “Novel Dynamical Modeling for Series-Parallel Resonant Converter.”https://doi.org/10.1109/ISIE.2012.6237122__In 21th IEEE International Symposium on Industrial Electronics (IS), Huangzhou, China, 2012.https://doi.org/10.1109/ISIE.2012.6237122 .

Grote, T., S. Bolte, N.  Fröhleke, and Joachim Böcker. “Reduction of Total Harmonic Distortion (THD)for Interleaved Converters Operating in Discontinuous Conduction Mode (DCM).” In PCIM Europe Conference, Nürnberg, Germany, 2012, 2012.

Böcker, Joachim, M. Sun, Z.  Cao, L. Tong, H. Zou, and P. Ranjan. “High Fidelity Hybrid Hardware-in-the-Loop Simulator with FPGA and Processor for AC Railway Traction.” In PCIM Europe Conference, Nürnberg, Germany, 2012.

Tao, J., Z. Cao, M. Sun, N. Fröhleke, and Joachim Böcker. “Full Digital Implementation of an Optimized Modulation Strategy for Series-Parallel Resonant Converter.” In PCIM Europe Conference, Nürnberg, Germany, 2012.

Buchholz, O., S. Mathapati, and Joachim Böcker. “Boosting Dynamics of AC Machines by Using FPGA-Based Controls.” In PCIM Europe Conference, Nürnberg, Germany, 2012.

Mathapati, Shashidhar, and Joachim Böcker. “Analytical and Offline Approach to Select Optimal Hysteresis Bands of DTC for PMSM.”https://doi.org/10.1109/tie.2012.2189530__IEEE Transactions on Industrial Electronics 60, no. 3 (2012): 885–95.https://doi.org/10.1109/tie.2012.2189530 .

Preckwinkel, Heiko, DVMM Krishna, Norbert Fröhleke, and Joachim Böcker. “Photovoltaic Inverter with High Efficiency over a Wide Operation Area - a Practical Approach.”https://doi.org/10.1109/iecon.2011.6119432__In IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2012.https://doi.org/10.1109/iecon.2011.6119432 .

Cao, Zhiyu, Junbing Tao, Norbert Fröhleke, and Joachim Böcker. “Time-Domain Steady-State Modeling of Series-Parallel Resonant Converter under Optimized Modulation.”https://doi.org/10.1109/iecon.2012.6388646__In IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society. IEEE, 2012.https://doi.org/10.1109/iecon.2012.6388646 .

Hu, Manli, Norbert Fröhleke, Wilhelm Peters, and Joachim Böcker. “Multi-Objective Optimization of LCC Resonant Converter Applied in VLF HV Generator.”https://doi.org/10.1109/iecon.2011.6119522__In IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2012.https://doi.org/10.1109/iecon.2011.6119522 .

Cao, Zhiyu, Franklin H. Nzeugang, Norbert Fröhleke, and Joachim Böcker. “A Comparative Study of Series-Parallel Resonant Converter by Using Different Modulation Strategies.”https://doi.org/10.1109/iecon.2011.6119333__In IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2012.https://doi.org/10.1109/iecon.2011.6119333 .

Solanki, Jitendra, Norbert Fröhleke, Joachim Böcker, and Peter Wallmeier. “Analysis, Design and Control of 1MW, High Power Factor and High Current Rectifier System.”https://doi.org/10.1109/ecce.2012.6342604__In 2012 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2012.https://doi.org/10.1109/ecce.2012.6342604 .