Trends and emerging techniques in isolated power converters

Lin Cheng; Dongfang Pan

doi:10.1088/1674-4926/25040037

Journal of Semiconductors, Volume. 46, Issue 7, 070202(2025)

Trends and emerging techniques in isolated power converters

Lin Cheng and Dongfang Pan^*

Author Affiliations

School of Microelectronics, University of Science and Technology of China, Hefei 230026, China

show less

References(26)

[1] B X Chen. Isolation in digital power supplies using micro-transformers, 2039(2009).

[2] P Lombardo, V Fiore, E Ragonese et al. A fully-integrated half-duplex data/power transfer system with up to 40Mb/s data rate, 23mW output power and on-chip 5kV galvanic isolation, 300(2016).

[3] E Ragonese, N Spina, A Castorina et al. A fully integrated galvanically isolated DC-DC converter with data communication. IEEE Trans Circuits Syst I Regul Pap, 65, 1432(2018).

[4] V Fiore, E Ragonese, G Palmisano. A fully integrated watt-level power transfer system with on-chip galvanic isolation in silicon technology. IEEE Trans Power Electron, 32, 1984(2017).

[5] W H Qin, X Yang, S Y Ma et al. An 800mW fully integrated galvanic isolated power transfer system meeting CISPR 22 Class-B emission levels with 6dB margin, 246(2019).

[6] Y Zhuo, S Y Ma, T T Zhao et al. A 52% peak-efficiency >1W isolated power transfer system using fully integrated magnetic-core transformer, 244(2019).

[7] Y Zhuo, S Y Ma, T T Zhao et al. A 52% peak efficiency > 1-W isolated power transfer system using fully integrated transformer with magnetic core. IEEE J Solid State Circuits, 54, 3326(2019).

[8] L S Li, X M Fang, R X Wu. An 11MHz fully integrated 5kV isolated DC-DC converter without cross-isolation-barrier feedback, 292(2020).

[9] D F Pan, G L Li, F T Miao et al. A 1.2W 51%-peak-efficiency isolated DC-DC converter with a cross-coupled shoot-through-free class-D oscillator meeting the CISPR-32 class-B EMI standard, 240(2022).

[10] D F Pan, A Y Li, W Sun et al. An isolated DC–DC converter using a cross-coupled shoot-through-free class-D oscillator with low EMI emissions. IEEE J Solid State Circuits, 59, 3457(2024).

[11] D F Pan, W W Xu, L T Zhang et al. A 2W 53.2%-peak-efficiency multi-core isolated DC-DC converter with embedded magnetic-core transformer achieving CISPR-32 class-B EMI compliance and <5mV ripple, 536(2025).

[12] D F Pan, G L Li, F T Miao et al. A 1.25W 46.5%-peak-efficiency transformer-in-package isolated DC-DC converter using glass-based fan-out wafer-level packaging achieving 50mW/mm2 power density, 468(2021).

[13] L Cheng, Z H Chen, D Q Yu et al. A high-efficiency transformer-in-package isolated DC-DC converter using glass-based fan-out wafer-level packaging. Fundam Res, 4, 1407(2024).

[14] T Xia, Q J Chen, S J Wang et al. A 180MHz 45.3%-peak-efficiency isolated converter using Q-downsize class-D power amplifier with inherent shoot-through current blocking and high tolerance for efficiency despite frequency misalignments, 1(2025).

[15] J Y Tang, L Zhao, C Huang. A through-power-link hysteretic-controlled capacitive isolated DC–DC converter with enhanced efficiency and common-mode transient immunity. IEEE J Solid State Circuits, 59, 1543(2024).

[16] J Q Jiang, J Y Tang, L Zhao et al. A 63% efficiency 1.29-W single-link multiple-output (SLiMO) isolated DC–DC converter using FPC micro-transformer with local voltage and global power regulations. IEEE J Solid State Circuits, 59, 804(2024).

[17] J Q Jiang, J Y Tang, L Zhao et al. SLiMO: A 61.8% efficiency single-link multiple-output isolated DC-DC converter using low-cost FPC micro- transformer with local voltage and global power regulation, 1(2023).

[18] J Y Tang, L Zhao, C Huang. A 68.3% efficiency reconfigurable 400-/800-mW capacitive isolated DC-DC converter with common-mode transient immunity and fast dynamic response by through-power-link hysteretic control, 1(2022).

[19] Y Liu, Y Yao, L Cheng et al. A pseudo hysteretic controlled gap time modulated isolated DC–DC converter with common-mode transient immunity. IEEE J Solid State Circuits, 60, 861(2025).

[20] D F Pan, A Y Li, W W Xu et al. A 2.1W 60%-peak-efficiency isolated DC-DC converter with complementary edge-aligned and adaptive over-compensation techniques meeting the CISPR-32 class-B EMI standard, 589(2024).

[21] Q A Huang, D F Pan, Z Y Chen et al. A dual-LC-resonant isolated DC-DC converter achieving 65.4% peak efficiency and inherent backscattering, 1(2025).

[25] T X Hu, Y Lu, R P Martins et al. An isolated DC-DC converter with full-duplex communication using a single pair of transformers. IEEE J Solid State Circuits, 60, 1070(2025).

[26] T X Hu, M Huang, R P Martins et al. A 750mW, 37% peak efficiency isolated DC-DC converter with 54/18Mb/s full-duplex communication using a single pair of transformers, 504(2024).

[27] J Q Jiang, L Zhao, J Y Tang et al. A single-link multi-domain-output (SLiMDO) isolated DC-DC converter with passive magnetic flux sharing for local energy distribution and Rx behavior sensing-based global power modulation, 530(2025).

[28] D F Pan, W W Xu, X F Wu et al. A 24V-to-20V 6W 73.2%-peak-efficiency isolated DC-DC converter using a transformer-based supply-generating technique, 1(2024).

[29] D Pan, W Xu, X Wu et al. A 24–20-V isolated DC–DC converter using a transformer-based supply-generating technique. IEEE Journal of Solid-State Circuits(2025).

Tools

Get Citation

Copy Citation Text

Lin Cheng, Dongfang Pan. Trends and emerging techniques in isolated power converters[J]. Journal of Semiconductors, 2025, 46(7): 070202

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites

Paper Information

Category: Research Articles

Received: May. 7, 2025

Accepted: --

Published Online: Aug. 27, 2025

The Author Email: Dongfang Pan (DFPan)

DOI:10.1088/1674-4926/25040037

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology