Patents Assigned to New Vision Micro Inc.
  • Low DC power rail-to-rail buffer amplifier for liquid crystal display application
    Patent number: 7411452
    Abstract: A low DC power rail-to-rail buffer amplifier is suitable for liquid crystal display application. The buffer amplifier comprises: a dc bias stage, a pair of complementary differential amplifiers, a second stage amplifier, and output stage. The dc bias stage is used for the dc bias of the differential amplifiers and the second stage to obtain a rail-to-rail operation. This buffer amplifier can be operated in the power supply ranges of 5.5 V to the breakdown voltage. Simulated results show that the circuit draws only 5.3 ?A static current.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: August 12, 2008
    Assignee: New Vision Micro Inc.
    Inventors: Chih-Wen Lu, Peter H. Xiao