Patents Assigned to Daydreams LLC
  • Method and apparatus for providing pulse width modulation
    Patent number: 6867645
    Abstract: A pulse width modulation scheme allows the creation of a unipolar pulse width modulated output signal. Two switching circuits (104, 204), preferably different legs of an inverter circuit, can operate to not only modulate an input voltage but also to reverse the polarity of the PWM output signal. Both switching circuits can be configured to accomplish both features, thus the switching load is spread out across all four switches.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: March 15, 2005
    Assignee: Daydreams LLC
    Inventors: Zahid Ansari, Bruce L. Prickett, Jonathan Andrew Guy