Patents by Inventor Maoyin ZHANG

Maoyin 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).

  • Patent number: 11388803
    Abstract: A triac dimming system for lighting dimming function includes a triac dimming circuit and a zero-cross test unit. The zero-cross test unit connect with triac dimming circuit and pass the zero-cross signal to triac dimming circuit, then the main control center of triac dimming circuit will adjust the ON/OFF timing of triac dimming unit according to the zero-cross signal and the reserved amount to make the conduction angle of triac dimming circuit stable. After precisely controlling the brightness of the AC lamps, it can keep the AC load (AC lamps) flicker within the acceptable level of the user (no flicker feeling by the naked eye).
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: July 12, 2022
    Inventor: Maoyin Zhang
  • Publication number: 20220113012
    Abstract: This utility design discloses a lamp body installation structure, which comprises a structure main body and a lamp cap electrode arranged on the structure main body. An elastic pin is arranged in the main body of the structure, and the elastic pin can be penetrated out from the inside of the structure main body. The utility design also comprises a toggle rod, the elastic pin can move axially under the action of the toggle rod. A lamp with a lamp body mounting structure is also disclosed. Compared with the prior art, advantage of the utility design is that the application adds a limit column, a spring and other matching structures, which can realize the fixation of the utility model at the lower limit of the spring force when the utility model is connected with the GU24 lamp holder during the installation, so as to realize its stable installation.
    Type: Application
    Filed: November 13, 2020
    Publication date: April 14, 2022
    Inventor: Maoyin ZHANG
  • Publication number: 20210315082
    Abstract: This invention discloses a triac dimming system and its dimming method, This system includes a triac dimming circuit and a zero-cross test unit. The zero-cross test unit connect with triac dimming circuit and pass the zero-cross signal to triac dimming circuit, then the main control center of triac dimming circuit will adjust the ON/OFF timming of triac dimming unit according to the zero-cross signal and the reserved amount to make the conduction angle of triac dimming circuit stable. After precisely controlling the brightness of the AC lamps, it can keep the AC load (AC lamps) flicker within the acceptable level of the user (no flicker feeling by the naked eye).
    Type: Application
    Filed: June 5, 2020
    Publication date: October 7, 2021
    Inventor: Maoyin ZHANG