Patents by Inventor Stephen Paul Sacarisen

Stephen Paul Sacarisen 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).

  • Lead acid charger
    Patent number: 5710506
    Abstract: A battery charge controller (50) is provided which includes a PWM switch controller (36) that is operable to control a switching regulator to supply current to a battery (10) in either a current regulation mode or a voltage regulation mode. A charge control (40) is operable to control the charging operation such that multiple modes of operation are selectable by an external programmable pin. The three modes provided are: a constant voltage mode, a dual-current mode and a pulse-current mode. The constant voltage mode provides for a conditioning state followed by a bulk charging state followed by a maintenance state. In the bulk charging state, current regulation is provided at a maximum current until a charged condition occurs, at which time the charger is placed in a voltage regulation mode.
    Type: Grant
    Filed: February 7, 1995
    Date of Patent: January 20, 1998
    Assignee: Benchmarq Microelectronics, Inc.
    Inventors: Frederick Gaudenz Broell, Jehangir Parvereshi, Stephen Paul Sacarisen
  • Lead acid charger with ratioed time-out periods and current pulse mode of operation
    Patent number: 5670863
    Abstract: A battery charge controller (50) is provided which includes a PWM switch controller (36) that is operable to control a switching regulator to supply current to a battery (10) in either a current regulation mode or a voltage regulation mode. A charge control (40) is operable to control the charging operation such that multiple modes of operation are selectable by an external programmable pin. The three modes provided are: a constant voltage mode, a dual-current mode and a pulse-current mode. The constant voltage mode provides for a conditioning state followed by a bulk charging state followed by a maintenance state. In the bulk charging state, current regulation is provided at a maximum current until a charged condition occurs, at which time the charger is placed in a voltage regulation mode.
    Type: Grant
    Filed: February 7, 1995
    Date of Patent: September 23, 1997
    Assignee: Benchmarq Microelectronics, Inc.
    Inventors: Frederick Gaudenz Broell, Jehangir Parvereshi, Stephen Paul Sacarisen