Patents by Inventor Ladislav Matyas

Ladislav Matyas 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).

  • Soft-start circuit and method therefor
    Patent number: 7719249
    Abstract: In one embodiment, a soft-start circuit is configured to form drive pulses that increase in width independently of the current through the power switch during a first portion of the soft-start operation period.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: May 18, 2010
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Ladislav Matyas, Francois Lhermite
  • Soft-Start Circuit and Method Therefor
    Publication number: 20080246450
    Abstract: In one embodiment, a soft-start circuit is configured to form drive pulses that increase in width independently of the current through the power switch during a first portion of the soft-start operation period.
    Type: Application
    Filed: January 28, 2005
    Publication date: October 9, 2008
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, L.L.C.
    Inventors: Ladislav Matyas, Francois Lhermite
  • Fault control circuit and method therefor
    Patent number: 7423856
    Abstract: In one embodiment, a fault control circuit of a switching power supply controller is configured to disable an operating voltage of the switching power supply controller responsively to a fault condition and to subsequently decouple the fault control circuit from another operating voltage.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: September 9, 2008
    Assignee: Semiconductor Components Industries, L.L.C.
    Inventor: Ladislav Matyas
  • Fault control circuit and method therefor
    Publication number: 20070153439
    Abstract: In one embodiment, a fault control circuit of a switching power supply controller is configured to disable an operating voltage of the switching power supply controller responsively to a fault condition and to subsequently decouple the fault control circuit from another operating voltage.
    Type: Application
    Filed: January 3, 2006
    Publication date: July 5, 2007
    Inventor: Ladislav Matyas
  • Amplifier and controlling apparatus operating from a unipolar power supply
    Patent number: 5686860
    Abstract: An amplifier controller (104) is described for operating from a single voltage power supply (105). A switch (103) is coupled between the amplifier (102) and the power supply (105). The controller (104) includes a power conditioning circuit (106) for generating doubled and tripled voltages and positive and negative voltages for operating the controller (104) and the amplifier (102). Internal voltage regulators (138, 142) control the magnitude of the generated voltages. The controller (104) further includes: (i) a circuit (172) for disabling the controller (104) and amplifier (102) in response to an idle signal presented thereto, (ii) a circuit (178) for energizing the switch in response to a turn-on signal (128) so that the amplifier (102) can amplify, and (iii) a circuit (176) for sensing the presence or absence of negative polarity (Vss) on a second lead (188) of the amplifier (102) and, if not present, disabling the switch (103) despite the presence of the turn-on signal.
    Type: Grant
    Filed: September 25, 1995
    Date of Patent: November 11, 1997
    Assignee: Motorola, Inc.
    Inventor: Ladislav Matyas