Patents by Inventor Bo-En Yan

Bo-En Yan 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).

  • High performance linear LED driving circuit
    Patent number: 9967929
    Abstract: A high performance linear driving circuit converting an AC voltage of an external power supply into a DC output current and then outputs the DC current to at least one LED includes a detection unit, a control unit and a current unit. In a 180-degree phase sine wave period of the AC voltage, the total current of the output current is formed by a first working section, an energy saving section and a second working section, and the detection unit detects at least a voltage value of the AC voltage or a current value of the output current to generate a detection signal, and drives the control unit to modulate the duty cycle and current value of the first working section, energy saving section and second working section, and the amounts of current of the first and second working sections are greater than that of the energy saving section.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: May 8, 2018
    Assignee: Anwell Semiconductor Corp.
    Inventors: Chun-Chieh Kuo, Shih-Ping Tu, Bo-En Yan, Cheng-Po Hsiao, Chung-Hsin Huang