Patents by Inventor Matt J. MA

Matt J. MA 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).

  • Driver with open output protection
    Patent number: 10757785
    Abstract: A load driver for driving a load and an LED module are disclosed. In one embodiment, the load driver comprises a converter circuit comprising a controllable switching element configured to be turned on and off and to perform power factor correction for power from a power supply to the load, wherein a control terminal of the controllable switching element is configured for receiving a startup current via the two output terminals, the controllable switching element configured to be turned on by the startup current. The converter circuit further comprises a first inductor, coupled to the power supply at a first end, and to ground at a second end via the controllable switching element, wherein a first one of the output terminals connects to a second end of the first inductor via a diode forwarded from the first inductor, a second one of the output terminals is coupled to the first end of the first inductor.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: August 25, 2020
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Zhi Quan Chen, Duo L. Li, Kang Li, Matt J. Ma, Hui Zhang, Dennis Johannes Antonius Claessens
  • Driver with open output protection
    Publication number: 20160119987
    Abstract: A load driver for driving a load and an LED module are disclosed. In one embodiment, the load driver comprises a converter circuit comprising a controllable switching element configured to be turned on and off and to perform power factor correction for power from a power supply to the load, wherein a control terminal of the controllable switching element is configured for receiving a startup current via the two output terminals, the controllable switching element configured to be turned on by the startup current. The converter circuit further comprises a first inductor, coupled to the power supply at a first end, and to ground at a second end via the controllable switching element, wherein a first one of the output terminals connects to a second end of the first inductor via a diode forwarded from the first inductor, a second one of the output terminals is coupled to the first end of the first inductor.
    Type: Application
    Filed: March 30, 2015
    Publication date: April 28, 2016
    Inventors: Zhi Quan CHEN, Duo L. Li, Kang LI, Matt J. MA, Hui ZHANG, Dennis Johannes Antonius CLAESSENS