Zhihong Zhang

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
System and method for regulating motor rotation speed
- Patent number 8,674,641
- Issue date Mar 18, 2014
- Shanghai SIM-BCD Semiconductor Manufacturing Limited
- Zhihong Zhang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
PWM control circuit having adjustable minimum duty cycle
- Patent number 8,120,402
- Issue date Feb 21, 2012
- BCD Semiconductor Manufacturing Limited
- Zhihong Zhang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Pulsed width modulated control method and apparatus
- Patent number 7,961,022
- Issue date Jun 14, 2011
- BCD Semiconductor Manufacturing Limited
- Zhihong Zhang
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
System and Method for Regulating Motor Rotation Speed
- Publication number 20110299247
- Publication date Dec 8, 2011
- Zhihong Zhang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
PULSED WIDTH MODULATED CONTROL METHOD AND APPARATUS
- Publication number 20100164581
- Publication date Jul 1, 2010
- BCD Semiconductor Manufacturing Limited
- Zhihong Zhang
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
PWM CONTROL CIRCUIT HAVING ADJUSTABLE MINIMUM DUTY CYCLE
- Publication number 20100109730
- Publication date May 6, 2010
- BCD Semiconductor Manufacturing Limited
- Zhihong Zhang
- H03 - BASIC ELECTRONIC CIRCUITRY