Inventor

ZHENG JIAN-FEI

CN2 patents

⚠️ This page may combine multiple inventors who share the name “ZHENG JIAN-FEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

Wang chang-yong

1 patent

US8922173B2Dec 30, 2014

DC chopper and DC chopping method for doubly fed induction generator system

Wang chang-yong5 citations69

DELTA ELECTRONICS SHANGHAI CO

1 patent

US9077180B2Jul 7, 2015

Phase locking system for three-phase alternating current electric grid and method thereof

DELTA ELECTRONICS SHANGHAI CO3 citations56