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A Study of Integrated Signal and Power Transfer for Compact Isolated SiC MOSFET Gate-Drivers

Journal Article · · Electronics
This work discusses a novel set of alternate implementations of isolated gate driver circuits for power electronic transistors. The proposed topologies for the driver have been designed specifically for SiC power MOSFET. Three different solutions are discussed, all of them providing the required gate turn-on and turn-off command signal with galvanic isolation, but also supplying power to the secondary side of the driver by means of magnetic transformers. The resulting solutions, all of them implemented with simple circuitry, enable the integration of the driver into the power cell, allowing for theoretical higher power density values in the final system. The principle of operation of the different solutions is discussed, and then the main relevant implementation details are presented. After that, the operation of the circuits is demonstrated experimentally, by testing a set of prototypes of these drivers. This provides a comprehensive design example that assesses the feasibility of the proposed solutions. Finally, the main results of the performance of the three gate drivers, on an SiC MOSFET-based prototype are presented and compared.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
ERFD Structural Funds (FEDER); Spanish Government, Innovation Development and Research Office (MEC); USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1764460
Journal Information:
Electronics, Journal Name: Electronics Journal Issue: 2 Vol. 10; ISSN 2079-9292
Publisher:
MDPICopyright Statement
Country of Publication:
United States
Language:
English

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