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Patent applications and USPTO patent grants for Zeng; Zhaorong.The latest application filed is for "method and system for diagnosing open-circuit fault of power switching device of three-phase three-level rectifier".
Patent | Date |
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Failure diagnosis method and apparatus for power tube of three-phase rectifier based on current signal Grant 11,360,128 - He , et al. June 14, 2 | 2022-06-14 |
Method And System For Diagnosing Open-circuit Fault Of Power Switching Device Of Three-phase Three-level Rectifier App 20220146592 - HE; Yigang ;   et al. | 2022-05-12 |
Method And System Of Identifying And Estimating Complex Analog Circuit Failure App 20220100624 - HE; Yigang ;   et al. | 2022-03-31 |
Failure Diagnosis Method And Apparatus For Power Tube Of Three-phase Rectifier Based On Current Signal App 20210389352 - HE; Yigang ;   et al. | 2021-12-16 |
Method And System For Power Equipment Diagnosis Based On Windowed Feature And Hilbert Visualization App 20210365342 - HE; Yigang ;   et al. | 2021-11-25 |
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