Inventor · disambiguated record
Changwei Qin
Also filed as: QIN CHANGWEI
3 granted patents·4 citations·filing 2019–2025
54Inventor score
Technology areasH02M
Top patents by PatentIndex Score
3 records- 0187US12184160B2Common-mode voltage suppression method and system for quasi-z-source simplified three-level inverterUNIV SHANDONG JIANZHU·Filed 2022·Granted Dec 31, 2024·2 cites·8 claims
- 0268US11296593B2Neutral-point voltage balance control method and system for three-level converter in full power factor rangeUNIV SHANDONG·Filed 2019·Granted Apr 5, 2022·2 cites·19 claims
- 0361US12418245B1Method and system for cooperatively suppressing common-mode voltage and current harmonics of coupled three-level inverterUNIV SHANDONG JIANZHU·Filed 2025·Granted Sep 16, 2025·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →