A High Input Voltage Auxiliary Power Supply Utilizing Automatic Balanced MOSFET Stack

2020 ◽  
pp. 1-1
Author(s):  
Fan Zhang ◽  
Yu Ren ◽  
Xu Yang ◽  
Wenjie Chen ◽  
Laili Wang
Keyword(s):  
Power Supply ◽  
Input Voltage ◽  
High Input ◽  
Auxiliary Power

scholarly journals Auxiliary power supply based on a modular ISOP flyback configuration with very high input voltage

2016 ◽  
Author(s):  
Alberto Rodriguez ◽  
Maria R. Rogina ◽  
Mariam Saeed ◽  
Diego G. Lamar ◽  
Manuel Arias ◽  
...  
Keyword(s):  
Power Supply ◽  
Input Voltage ◽  
High Input ◽  
Auxiliary Power ◽  
Very High

Investigation and Implementation of an Input-Series Auxiliary Power Supply Scheme for High-Input-Voltage Low-Power Applications

2018 ◽  
Vol 33 (1) ◽  
pp. 437-447 ◽  
Author(s):  
Tao Meng ◽  
Yilin Song ◽  
Zhongxian Wang ◽  
Hongqi Ben ◽  
Chunyan Li
Keyword(s):  
Low Power ◽  
Power Supply ◽  
Input Voltage ◽  
High Input ◽  
Auxiliary Power

An Auxiliary Power Supply for Gate Drive of Medium Voltage SiC Devices in High Voltage Applications

2018 ◽  
Vol 924 ◽  
pp. 836-840
Author(s):  
Bo Xue Hu ◽  
He Li ◽  
Zhuo Wei ◽  
Ya Feng Wang ◽  
Diang Xing ◽  
...  
Keyword(s):  
High Voltage ◽  
Power Supply ◽  
Low Voltage ◽  
High Reliability ◽  
Voltage Divider ◽  
Input Voltage ◽  
Voltage Regulation ◽  
Multilevel Converters ◽  
Medium Voltage ◽  
Auxiliary Power

A high-reliability auxiliary power supply (APS) for gate drive circuits is crucial to utilization of emerging medium voltage (MV ≥ 10 kV) Silicon Carbide (SiC) devices in high voltage applications. This paper proposes an active voltage divider based APS with lower arm voltage regulation. The proposed APS circuit is targeting the application of MV SiC devices in modular multilevel converters (MMCs). It can harvest energy from a MV (≥ 7 kV) dc bus to provide an isolated low voltage output to gate drive circuits of MV SiC devices. Compared to existing APS solutions, it can achieve a high input voltage (≥ 7 kV) with simple circuit structure and control scheme. In this paper, the working principle of the proposed APS is presented and a circuit design example is shown. A circuit prototype with 7 kV input and 15 V/10 W output has been built and tested to verify the effectiveness of the proposed solution.

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