Patents by Inventor Ruomeng Zhang

Ruomeng Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • LED driver having short circuit protection
    Patent number: 9504119
    Abstract: An LED driver having short circuit protection includes a power, a controlling module coupled to the power and be configured to control output thereof, a sampling module electrically connected to the controlling module, a switch controlling module coupled to the sampling module, and a second switch coupled to the switch controlling module 40 and the output end of the power. The controlling module includes a first switch. The sampling module gets a low level signal during that short circuit is occurred in the first switch. When the switch controlling module receives the low level signal, it turns off the second switch so as to reduce the input voltage of the controlling module. The LED driver having short circuit protection can protect the first switch and load during that short circuit is occurred in the first switch.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: November 22, 2016
    Assignee: Self Electronics Co., Ltd.
    Inventors: Ruomeng Zhang, Huangfeng Pan, Xuhong Ma, Junjun Ying
  • LED DRIVER HAVING SHORT CIRCUIT PROTECTION
    Publication number: 20160270185
    Abstract: An LED driver having short circuit protection includes a power, a controlling module coupled to the power and be configured to control output thereof, a sampling module electrically connected to the controlling module, a switch controlling module coupled to the sampling module, and a second switch coupled to the switch controlling module 40 and the output end of the power. The controlling module includes a first switch. The sampling module gets a low level signal during that short circuit is occurred in the first switch. When the switch controlling module receives the low level signal, it turns off the second switch so as to reduce the input voltage of the controlling module. The LED driver having short circuit protection can protect the first switch and load during that short circuit is occurred in the first switch.
    Type: Application
    Filed: March 9, 2016
    Publication date: September 15, 2016
    Applicants: Self electronics USA Corporation
    Inventors: Ruomeng Zhang, Huangfeng Pan, Xuhong Ma, Junjun Ying