A MPPT with Dynamic-Impedance Matching in Wide-Illuminance Perovskite Solar Cells Enabling 100 Lux Cold-Start for Indoor IoT
Perovskite solar cells (PSCs) suffer output efficiency degradation during indoor low light operation (100 lux) due to dynamic internal resistance. This work proposes a constant voltage reference method (CV-RM) with dynamic impedance matching, enabling wide-illuminance Maximum Power Point Tracking (MPPT) via frequency-impedance co-regulation. Characterization establishes optimal voltage ratio K = 0.8. A digitally tuned oscillator adapts charge pump frequency (0.11-2.58 MHz) to match PSCs resistance. The all-analog design achieves MPP voltage locking, eliminating ADCs and digital processing. Experiments demonstrate: 100 lux cold start, full-range coverage (100-1000 lux), and cost reduction for billion-scale IoT deployments.
Authors
- Yabin An (ORCID: https://orcid.org/0000-0002-6745-2971)
- Xinkai Zhen (ORCID: https://orcid.org/0009-0006-6989-1501)
- Yanning Chen (ORCID: https://orcid.org/0000-0002-1337-9668)
- Xiaoming Li (ORCID: https://orcid.org/0000-0002-7397-723X)
- Yining Hu (ORCID: https://orcid.org/0000-0002-6233-743X)
Institutions
- Xidian University (CN)
Publication Details
- Journal
- IEICE Electronics Express
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1587/elex.22.20250386
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Key Research and Development Program of China