Patents by Inventor Reza Amirani

Reza Amirani 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).

  • VOLTAGE MODE PWMFF-PFM/SKIP COMBO CONTROLLER
    Publication number: 20090079408
    Abstract: A voltage controller and method providing multiple modes of operation. Embodiments include pulse-width modulation (PWM), feed-forward (FF), pulse-frequency modulation (PFM) and skip operation (PWM-FF-PFM/SKIP). Controller embodiments have integrated MOSFET components, comparator hysteresis, oscillator feed-forward, fixed gain, and error amplifier (EA) limits thereby providing improved efficiency and noise immunity.
    Type: Application
    Filed: April 23, 2008
    Publication date: March 26, 2009
    Applicant: NEXEM, INC.
    Inventors: Chongming Qiao, Reza Amirani, Vincent Condito, Amir Asvadi
  • DC to DC converter with reference voltage loop disturbance compensation
    Patent number: 7489119
    Abstract: A controller for a DC to DC converter with reference voltage loop disturbance compensation. The controller may include an error amplifier configured to receive a first signal representative of an actual output voltage of the DC to DC converter and a reference signal representative of a desired output voltage of the DC to DC converter and to provide an error signal representative of a difference between the first signal and the reference signal. The controller may also include a PWM modulator with reference voltage compensation circuitry configured to receive the error signal and compensate for a change in the reference signal in order to control overshoot and undershoot of the actual output voltage from a desired voltage due to the change of the reference signal. An electronic device and method are also provided.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: February 10, 2009
    Assignee: Nexem, Inc.
    Inventors: Mark Smith, Jr., Chongming Qiao, Reza Amirani
  • DC to DC converter with reference voltage loop disturbance compensation
    Publication number: 20070040536
    Abstract: A controller for a DC to DC converter with reference voltage loop disturbance compensation. The controller may include an error amplifier configured to receive a first signal representative of an actual output voltage of the DC to DC converter and a reference signal representative of a desired output voltage of the DC to DC converter and to provide an error signal representative of a difference between the first signal and the reference signal. The controller may also include a PWM modulator with reference voltage compensation circuitry configured to receive the error signal and compensate for a change in the reference signal in order to control overshoot and undershoot of the actual output voltage from a desired voltage due to the change of the reference signal. An electronic device and method are also provided.
    Type: Application
    Filed: August 17, 2005
    Publication date: February 22, 2007
    Inventors: Mark Smith, Chongming Qiao, Reza Amirani