TY - GEN
T1 - CMOS-Integrated High-Voltage Transformer for a Galvanically Isolated DC-DC Converter
AU - Meehan, Patrick
AU - Rinne, Karl
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - This paper presents layout techniques and optimizations applicable to high-voltage, chip-integrated, galvanically isolated transformers implemented on a thick oxide standard CMOS process. A novel shield implementation for reduced inter-coil capacitance and improved CMTI performance is discussed. Benefits and impacts of the shield in terms of CMTI-coupled currents, quality factor and transformer power-transfer efficiency are modeled, simulated and presented. An accurate distributed circuit simulation model, derived from the y-parameters produced by a 3D finite-element planar electromagnetic solver is assessed. The circuit simulation model supports the design of the CMOS-integrated power conversion system embedding the transformer.
AB - This paper presents layout techniques and optimizations applicable to high-voltage, chip-integrated, galvanically isolated transformers implemented on a thick oxide standard CMOS process. A novel shield implementation for reduced inter-coil capacitance and improved CMTI performance is discussed. Benefits and impacts of the shield in terms of CMTI-coupled currents, quality factor and transformer power-transfer efficiency are modeled, simulated and presented. An accurate distributed circuit simulation model, derived from the y-parameters produced by a 3D finite-element planar electromagnetic solver is assessed. The circuit simulation model supports the design of the CMOS-integrated power conversion system embedding the transformer.
KW - CMTI
KW - galvanically isolated
KW - high-voltage
KW - inter-coil capacitance
KW - layout techniques
KW - On-chip transformer
KW - shielding
UR - http://www.scopus.com/inward/record.url?scp=85135947117&partnerID=8YFLogxK
U2 - 10.1109/ISSC55427.2022.9826217
DO - 10.1109/ISSC55427.2022.9826217
M3 - Conference contribution
AN - SCOPUS:85135947117
T3 - 2022 33rd Irish Signals and Systems Conference, ISSC 2022
BT - 2022 33rd Irish Signals and Systems Conference, ISSC 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 33rd Irish Signals and Systems Conference, ISSC 2022
Y2 - 9 June 2022 through 10 June 2022
ER -