Shiqiang Liu

Person

Sichuan, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Charge pump systems with adjustable frequency control
- Patent number 9,118,238
- Issue date Aug 25, 2015
- O2Micro, Inc.
- Quanwang Liu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multi-channel converter with self-diagnosis functionality
- Patent number 8,324,861
- Issue date Dec 4, 2012
- O2Micro Inc.
- Xiaohua Huo
- G01 - MEASURING TESTING
Information Patent Grant
Calibrating a system by setting difference between signals
- Patent number 8,169,249
- Issue date May 1, 2012
- O2Micro International Limited
- Guoxing Li
- G01 - MEASURING TESTING
Information Patent Grant
Calculating a parameter indicative of an error factor of a circuit
- Patent number 8,030,973
- Issue date Oct 4, 2011
- O2Micro Inc.
- Guoxing Li
- G01 - MEASURING TESTING
Information Patent Grant
Battery pre-charging circuit comprising normal voltage and low volt...
- Patent number 7,701,177
- Issue date Apr 20, 2010
- O2Micro International Limited
- Shiqiang Liu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Battery charge/discharge control circuit
- Patent number 7,642,750
- Issue date Jan 5, 2010
- O2Micro International Limited
- Shiqiang Liu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Protection device for non-common ground buses
- Patent number 7,629,771
- Issue date Dec 8, 2009
- O2Micro International, Ltd.
- Guoxing Li
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Low drop-out voltage regulator with common-mode feedback
- Patent number 7,323,853
- Issue date Jan 29, 2008
- 02Micro International Ltd.
- Xiaohu Tang
- G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

Information Patent Application
CALIBRATING A SYSTEM BY SETTING DIFFERENCE BETWEEN SIGNALS
- Publication number 20120013366
- Publication date Jan 19, 2012
- Guoxing LI
- G01 - MEASURING TESTING
Information Patent Application
SIGNAL MONITORING SYSTEMS
- Publication number 20110156758
- Publication date Jun 30, 2011
- Guoxing LI
- G01 - MEASURING TESTING
Information Patent Application
Charge pump systems with adjustable frequency control
- Publication number 20090128212
- Publication date May 21, 2009
- O2Micro, Inc.
- Quanwang Liu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Battery pre-charging circuit
- Publication number 20080150487
- Publication date Jun 26, 2008
- Shiqiang Liu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Protection device for non-common ground buses
- Publication number 20070188950
- Publication date Aug 16, 2007
- Liusheng Liu
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Battery charge/discharge control circuit
- Publication number 20070075684
- Publication date Apr 5, 2007
- Shiqiang Liu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Low drop-out voltage regulator with common-mode feedback
- Publication number 20060197513
- Publication date Sep 7, 2006
- Xiaohu Tang
- G05 - CONTROLLING REGULATING

Shiqiang Liu

Person

Patents Grantslast 30 patents

Charge pump systems with adjustable frequency control

Multi-channel converter with self-diagnosis functionality

Calibrating a system by setting difference between signals

Calculating a parameter indicative of an error factor of a circuit

Battery pre-charging circuit comprising normal voltage and low volt...

Battery charge/discharge control circuit

Protection device for non-common ground buses

Low drop-out voltage regulator with common-mode feedback

Patents Applicationslast 30 patents

CALIBRATING A SYSTEM BY SETTING DIFFERENCE BETWEEN SIGNALS

SIGNAL MONITORING SYSTEMS

Charge pump systems with adjustable frequency control

Battery pre-charging circuit

Protection device for non-common ground buses

Battery charge/discharge control circuit

Low drop-out voltage regulator with common-mode feedback