Shengfa Zhang

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Dongguan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Non-isolated symmetric self-coupling 18-pulse rectifier power suppl...
- Patent number 9,627,990
- Issue date Apr 18, 2017
- GUANGDONG EAST POWER CO., LTD.
- Shengfa Zhang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Symmetric-type UPS power system based on a nine-phase phase-shiftin...
- Patent number 9,478,353
- Issue date Oct 25, 2016
- GUANGDONG EAST POWER CO., LTD.
- Haibo Xu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
NON-ISOLATED SYMMETRIC SELF-COUPLING 18-PULSE RECTIFIER POWER SUPPL...
- Publication number 20150078045
- Publication date Mar 19, 2015
- GUANGDONG EAST POWER CO., LTD.
- Shengfa Zhang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SYMMETRIC-TYPE UPS POWER SYSTEM BASED ON A NINE-PHASE PHASE-SHIFTIN...
- Publication number 20150069955
- Publication date Mar 12, 2015
- GUANGDONG EAST POWER CO., LTD.
- Haibo Xu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER