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2020 – today
- 2024
[c10]Rinkle Jain, Shunjiang Xu, Rajiv Kaushal, Carlos Mariscal, Humberto Caballero, Tamir Salus, Christopher Schaef, Anup Deka, Aruna Payala, Keng Chen, Huong Do, Jonathan Douglas:
28.6 An 87% Efficient 2V-Input, 200A Voltage Regulator Chiplet Enabling Vertical Power Delivery in Multi-kW Systems-on-Package. ISSCC 2024: 466-468- 2022
- [j6]Nachiket V. Desai
, Han Wui Then, Jingshu Yu, Harish K. Krishnamurthy, William J. Lambert, Nicolas Butzen, Sheldon Weng, Christopher Schaef, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De:
A 32-A, 5-V-Input, 94.2% Peak Efficiency High-Frequency Power Converter Module Featuring Package-Integrated Low-Voltage GaN nMOS Power Transistors. IEEE J. Solid State Circuits 57(4): 1090-1099 (2022) - [c9]Christopher Schaef, Tamir Salus, Rachid Rayess, Siddarth Kulasekaran, Mat Manusharow, Kaladhar Radhakrishnan, Jonathan Douglas:
A IMax |max, Fully Integrated Multi-Phase Voltage Regulator with 91.5% Peak Efficiency at 1.8 to 1V, Operating at 50MHz and Featuring a Digitally Assisted Controller with Automatic Phase Shedding and Soft Switching in 4nm Class FinFET CMOS. ISSCC 2022: 1-3 - [c8]Nachiket V. Desai, Harish K. Krishnamurthy, Suhwan Kim, Christopher Schaef, Sheldon Weng, Beomseok Choi, William J. Lambert, Krishnan Ravichandran, James W. Tschanz, Vivek De:
Fully Integrated Voltage Regulators with Package-Embedded Inductors for Heterogeneous 3D-TSV-Stacked System-in-Package with 22nm CMOS Active Silicon Interposer Featuring Self-Trimmed, Digitally Controlled ON-Time Discontinuous Conduction Mode (DCM) Operation. VLSI Technology and Circuits 2022: 192-193 - 2021
- [j5]Xiaosen Liu, Harish K. Krishnamurthy, Taesik Na, Sheldon Weng, Khondker Z. Ahmed, Christopher Schaef, Krishnan Ravichandran, James W. Tschanz, Vivek De:
A Universal Modular Hybrid LDO With Fast Load Transient Response and Programmable PSRR in 14-nm CMOS Featuring Dynamic Clamp Strength Tuning. IEEE J. Solid State Circuits 56(8): 2402-2415 (2021) - [c7]Nachiket V. Desai, Harish K. Krishnamurthy, William J. Lambert, Jingshu Yu, Han Wui Then, Nicolas Butzen, Sheldon Weng, Christopher Schaef, N. Nidhi, Marko Radosavljevic, Johann Rode, Justin Sandford, Kaladhar Radhakrishnan, Krishnan Ravichandran, Bernhard Sell, James W. Tschanz, Vivek De:
A 32A 5V-Input, 94.2% Peak Efficiency High-Frequency Power Converter Module Featuring Package-Integrated Low-Voltage GaN NMOS Power Transistors. VLSI Circuits 2021: 1-2 - 2020
- [c6]Zakir Zakir Ahmed, Harish K. Krishnamurthy, Sheldon Weng, Xiaosen Liu, Christopher Schaef, Nachiket V. Desai, Krishnan Ravichandran, James W. Tschanz, Vivek De:
An Autonomous Reconfigurable Power Delivery Network (RPDN) for Many-Core SoCs Featuring Dynamic Current Steering. VLSI Circuits 2020: 1-2
2010 – 2019
- 2019
- [j4]Christopher Schaef, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De, Nachiket V. Desai, Harish K. Krishnamurthy, Xiaosen Liu, Khondker Zakir Ahmed, Suhwan Kim, Sheldon Weng, Huong Do, William J. Lambert:
A Light-Load Efficient Fully Integrated Voltage Regulator in 14-nm CMOS With 2.5-nH Package-Embedded Air-Core Inductors. IEEE J. Solid State Circuits 54(12): 3316-3325 (2019) - [c5]Christopher Schaef, Sheldon Weng, Beomseok Choi, William J. Lambert, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De:
A 93.8% Peak Efficiency, 5V-Input, 10A Max ILOAD Flying Capacitor Multilevel Converter in 22nm CMOS Featuring Wide Output Voltage Range and Flying Capacitor Precharging. ISSCC 2019: 146-148 - [c4]Christopher Schaef, Nachiket V. Desai, Harish Krishnamurthy, Sheldon Weng, Huong Do, William J. Lambert, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De:
A Fully Integrated Voltage Regulator in 14nm CMOS with Package-Embedded Air-Core Inductor Featuring Self-Trimmed, Digitally Controlled Variable On-Time Discontinuous Conduction Mode Operation. ISSCC 2019: 154-156 - 2018
- [j3]Arun Rao, Yueh-Ching Teng, Chris Schaef, Ethan K. Murphy, Saaid H. Arshad, Ryan J. Halter, Kofi Odame:
An Analog Front End ASIC for Cardiac Electrical Impedance Tomography. IEEE Trans. Biomed. Circuits Syst. 12(4): 729-738 (2018) - [c3]Suhwan Kim, Vaibhav A. Vaidya, Christopher Schaef, Andrew Lines, Harish Krishnamurthy, Sheldon Weng, Xiaosen Liu, Dileep Kurian, Tanay Karnik, Krishnan Ravichandran, James W. Tschanz, Vivek De:
A Single-Stage, Single-Inductor, 6-Input 9-Output Multi-Modal Energy Harvesting Power Management IC for 100µW-120MW Battery-Powered IoT Edge Nodes. VLSI Circuits 2018: 195-196 - 2017
- [j2]Christopher Schaef, Eric Din, Jason T. Stauth:
A Hybrid Switched-Capacitor Battery Management IC With Embedded Diagnostics for Series-Stacked Li-Ion Arrays. IEEE J. Solid State Circuits 52(12): 3142-3154 (2017) - [c2]Christopher Schaef, Eric Din, Jason T. Stauth:
10.2 A digitally controlled 94.8%-peak-efficiency hybrid switched-capacitor converter for bidirectional balancing and impedance-based diagnostics of lithium-ion battery arrays. ISSCC 2017: 180-181 - 2015
- [j1]Christopher Schaef, Jason T. Stauth:
A 3-Phase Resonant Switched Capacitor Converter Delivering 7.7 W at 85% Efficiency Using 1.1 nH PCB Trace Inductors. IEEE J. Solid State Circuits 50(12): 2861-2869 (2015) - [c1]Christopher Schaef, Kapil Kesarwani, Jason T. Stauth:
20.2 A variable-conversion-ratio 3-phase resonant switched capacitor converter with 85% efficiency at 0.91W/mm2 using 1.1nH PCB-trace inductors. ISSCC 2015: 1-3
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