Patents by Inventor Fereydoun Mekanik

Fereydoun Mekanik 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).

  • Inverter/charger circuit for uninterruptible power supplies
    Patent number: 5760495
    Abstract: A power supply for generating an uninterruptible AC power signal. The power supply utilizes leakage inductance in its transformer to eliminate the need for an output inductor. In standby mode, the AC power signal is generated from a battery by a switching circuit. Certain components of the switching circuit are also used to charge the battery when the power supply is operating in line mode.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: June 2, 1998
    Assignee: Alpha Technologies, Inc.
    Inventor: Fereydoun Mekanik
  • Apparatus and methods for generating an AC power signal for cable tv distribution systems
    Patent number: 5739595
    Abstract: A cable TV distribution system in which an AC power signal is generated according to the following steps: (a) generating an AC power signal having at least a positive half-cycle, where the positive half-cycle comprises a rising portion, a falling portion, and a central portion; and (b) limiting the slew rate of the AC power signal within the rising portion to a range of 30 V/ms and 50 V/ms inclusive. Preferably, the slew rate of the AC power signal within the falling portion is limited to the range of -30 V/ms and -50 V/ms inclusive.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: April 14, 1998
    Assignee: Alpha Technologies, Inc.
    Inventors: Fereydoun Mekanik, Brian M. Kennedy, Thomas S. Osterman
  • Apparatus and methods for generating uninterruptible AC power signals
    Patent number: 5642002
    Abstract: A broadband communications network having an uninterruptible power supply. The power supply has one input connection to AC line voltage and another input connected to a gas powered electrical generator. The power supply contains an uninterruptible power supply module having a controlled ferroresonant transformer and a battery. The power supply also contains a bypass module having a controlled ferroresonant transformer. Switches are provided to allow either of the inputs to be connected to either the UPS module or the bypass module for the generation of power signals for supplying power to the broadband communications network.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: June 24, 1997
    Assignee: Alpha Technologies
    Inventors: Fereydoun Mekanik, Donald C. Sorenson, Gregory Scott Zediker, Thomas S. Osterman
  • Apparatus and methods for generating uninterruptible AC power signals
    Patent number: 5638244
    Abstract: A broadband communications network having an uninterruptible power supply. The power supply has one input connected to AC line voltage and another input connected to a gas powered electrical generator. The power supply contains an uninterruptible power supply module having a controlled ferroresonant transformer and a battery. The power supply also contains a bypass module having a controlled ferroresonant transformer. Switches are provided to allow either of the inputs to be connected to either the UPS module or the bypass module for the generation of power signals for supplying power to the broadband communications network.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: June 10, 1997
    Assignee: Alpha Technologies, Inc.
    Inventors: Fereydoun Mekanik, Donald C. Sorenson, Gregory S. Zediker, Thomas S. Osterman