Digital Isolator Based on On-Chip Transformer for High-Voltage SiC MOSFET

Ke, Jinkun; Feng, Jinbo; Liu, Chang; Guan, Zhaoliang; Xu, Hangyu; Zhao, Ming

doi:10.1109/ei259745.2023.10513104

2023 IEEE 7th Conference on Energy Internet and Energy System Integration (EI2) 2023

DOI: 10.1109/ei259745.2023.10513104

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Digital Isolator Based on On-Chip Transformer for High-Voltage SiC MOSFET

Jinkun Ke,

Jinbo Feng,

Chang Liu

et al.

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2024

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A 25 Mbps 15 ns Propagation Delay 150 kV/μs CMTI Configurable Dual-Channel Capacitive Digital Isolation Driver

Zhao,

Wang,

Chen

et al. 2024

Micromachines

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Electrical isolation devices are essential components for safeguarding the reliability of electronic systems under harsh conditions. Digital isolators are widely used in low-power circuits due to their high immunity to disturbances. In this paper, a capacitive digital isolator for high-efficiency power supply scenarios is proposed with a high common-mode transient immunity (CMTI) and high data transmission rate. The on–off keying (OOK) modulation technique is used to ensure a high speed and accurate signal transmission. A fully integrated high-voltage level-shift driver with an ns-scale delay is proposed for increasing the drive capacity. Post-simulation results in Cadence IC 6.1.7 with the standard 0.18 μm CMOS process show that the proposed architecture achieves a 25 Mbps data transmission rate and 15 ns typical propagation delay with output peak currents of 2 A/4 A, respectively. Meanwhile, a CMTI of more than 150 kV/μs is realized.

show abstract

A 25 Mbps 15 ns Propagation Delay 150 kV/μs CMTI Configurable Dual-Channel Capacitive Digital Isolation Driver

Zhao,

Wang,

Chen

et al. 2024

Micromachines

View full text Add to dashboard Cite

show abstract

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Digital Isolator Based on On-Chip Transformer for High-Voltage SiC MOSFET

Cited by 1 publication

References 11 publications

A 25 Mbps 15 ns Propagation Delay 150 kV/μs CMTI Configurable Dual-Channel Capacitive Digital Isolation Driver

A 25 Mbps 15 ns Propagation Delay 150 kV/μs CMTI Configurable Dual-Channel Capacitive Digital Isolation Driver

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