Qingfei Zheng

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Shenzhen, CN

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Patents Grantslast 30 patents

Information Patent Grant
Reverse-connection protecting device and backup power supply includ...
- Patent number 9,099,875
- Issue date Aug 4, 2015
- BYD Company Limited
- Qiuping Pan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Reversal connection protecting circuit
- Patent number 8,953,291
- Issue date Feb 10, 2015
- BYD Company Limited
- Yaozhong Mi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Battery array voltage equalization device
- Patent number 8,237,406
- Issue date Aug 7, 2012
- BYD Company Ltd.
- Qingfei Zheng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit for controlling the operation of a backup power supply
- Patent number 8,212,403
- Issue date Jul 3, 2012
- BYD Company Ltd.
- Xiangjun Dai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
REVERSE-CONNECTION PROTECTING DEVICE AND BACKUP POWER SUPPLY INCLUD...
- Publication number 20110211286
- Publication date Sep 1, 2011
- BYD COMPANY LIMITED
- Qiuping Pan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
REVERSAL CONNECTION PROTECTING CIRCUIT
- Publication number 20110141632
- Publication date Jun 16, 2011
- BYD COMPANY LIMITED
- Yaozhong MI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Voltage Regulating Device for Load Starting
- Publication number 20100156381
- Publication date Jun 24, 2010
- Daming Shi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Circuit for Controlling the Operation of a Backup Power Supply
- Publication number 20100127569
- Publication date May 27, 2010
- Xiangjun Dai
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Battery Array Voltage Equalization Device
- Publication number 20100109607
- Publication date May 6, 2010
- Qingfei Zheng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER