Patents by Inventor Alan R. Ball

Alan R. Ball 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).

  • Patent number: 9716403
    Abstract: A battery charger circuit includes a transistor having a first current electrode for receiving a charging voltage, a control electrode for receiving a control signal, and a second current electrode for providing an output voltage. The battery charger circuit further includes a rectifier having a terminal coupled to the second current electrode of the transistor, and another terminal coupled to a power supply voltage terminal. The battery charger circuit also includes a control and regulation circuit having an input for receiving a feedback signal representative of a temperature, and an output for providing the control signal. The control and regulation circuit operates in either a switching mode or a linear mode in response to the feedback signal.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: July 25, 2017
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Alan R. Ball
  • Patent number: 8693149
    Abstract: In one embodiment, a semiconductor device to provide protection for electronic circuits, the semiconductor device typically includes a vertical MOS transistor, a reference circuit, and an amplifier. The amplifier amplifies the reference voltage to enable the vertical MOS transistor responsively to a transient event.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: April 8, 2014
    Assignee: Semiconductor Components Industries, LLC.
    Inventors: Alan R. Ball, Stephen P. Robb
  • Publication number: 20130106374
    Abstract: In one embodiment, a switching power supply circuit includes a power source configured to supply supplemental power to the high side driver in parallel with the bootstrap capacitor.
    Type: Application
    Filed: November 2, 2011
    Publication date: May 2, 2013
    Inventor: Alan R. Ball
  • Patent number: 8217706
    Abstract: A method and circuit for managing thermal performance of an integrated circuit. Temperature sensing circuits and a plurality of power FETs that are coupled together in parallel are manufactured from a semiconductor substrate. Each temperature sensing circuit monitors the temperature of the portion of the semiconductor substrate near or including a corresponding power FET. When the temperature of the semiconductor substrate near one or more of the power FETs reaches a predetermined value, the corresponding temperature sensing circuit reduces a voltage appearing on the gate of the power FET. The reduced voltage increases the on-resistance of the power FET and channels a portion of its current to others of the plurality of power FETs. The power FET continues operating but with a reduced current flow. When the temperature of the semiconductor substrate falls below the predetermined value, the gate voltage of the power FET is increased to its nominal value.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: July 10, 2012
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Alan R. Ball, Stephen P. Robb
  • Patent number: 8159284
    Abstract: A method and circuit for managing thermal performance of an integrated circuit. In accordance with an embodiment, a thermal limit circuit and a semiconductor device are manufactured from a semiconductor material, wherein the thermal limit circuit is configured to operate at a temperature level that is different from a threshold temperature in response to the thermal sensing element sensing a temperature at least equal to the threshold temperature.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: April 17, 2012
    Assignee: Semiconductor Components Industries, LLC
    Inventor: Alan R. Ball
  • Patent number: 8143923
    Abstract: A power supply circuit having a converter circuit and method for determining a current flowing into the converter circuit. A converter circuit includes an amplifier and a current-to-current converter module. The amplifier has a current sensing element coupled between its inverting and noninverting input terminals. The amplifier generates a sensing signal from a charging current flowing through the current sensing element. The sensing signal is input into the current-to-current converter module, which scales the charging current and modulates the scaled charging current. The current-to-current converter module converts the modulated current to a charging voltage that is representative of the charging current. The charging current is converted to a current that is representative of the input current to converter circuit. The input current to the converter circuit is added to an auxiliary load current to yield the current of the power supply circuit.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: March 27, 2012
    Assignee: Semiconductor Components Industries, LLC
    Inventor: Alan R. Ball
  • Publication number: 20110133787
    Abstract: A power supply circuit having a converter circuit and method for determining a current flowing into the converter circuit. A converter circuit includes an amplifier and a current-to-current converter module. The amplifier has a current sensing element coupled between its inverting and noninverting input terminals. The amplifier generates a sensing signal from a charging current flowing through the current sensing element. The sensing signal is input into the current-to-current converter module, which scales the charging current and modulates the scaled charging current. The current-to-current converter module converts the modulated current to a charging voltage that is representative of the charging current. The charging current is converted to a current that is representative of the input current to converter circuit. The input current to the converter circuit is added to an auxiliary load current to yield the current of the power supply circuit.
    Type: Application
    Filed: December 7, 2009
    Publication date: June 9, 2011
    Inventor: Alan R. Ball
  • Patent number: 7932679
    Abstract: In one embodiment, an LED system is controlled to have a substantially unity power factor.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: April 26, 2011
    Assignee: Semiconductor Components Industries, LLC
    Inventor: Alan R. Ball
  • Publication number: 20110080207
    Abstract: A method and circuit for managing thermal performance of an integrated circuit. In accordance with an embodiment, a thermal limit circuit and a semiconductor device are manufactured from a semiconductor material, wherein the thermal limit circuit is configured to operate at a temperature level that is different from a threshold temperature in response to the thermal sensing element sensing a temperature at least equal to the threshold temperature.
    Type: Application
    Filed: December 15, 2010
    Publication date: April 7, 2011
    Inventor: Alan R. Ball
  • Patent number: 7919976
    Abstract: In one embodiment, a diagnostic circuit is used to test the on-resistance of a transistor.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: April 5, 2011
    Assignee: Semiconductor Components Industries, LLC
    Inventor: Alan R. Ball
  • Publication number: 20100296210
    Abstract: In one embodiment, a semiconductor device to provide protection for electronic circuits, the semiconductor device typically includes a vertical MOS transistor, a reference circuit, and an amplifier. The amplifier amplifies the reference voltage to enable the vertical MOS transistor responsively to a transient event.
    Type: Application
    Filed: May 20, 2009
    Publication date: November 25, 2010
    Inventors: Alan R. Ball, Stephen P. Robb
  • Patent number: 7839099
    Abstract: In one embodiment, an LED control circuit is configured control a current through an LED responsively to a value that is proportional to a control signal for values of the control signal that are less than a threshold value of the control signal and to control the current to a value that is proportional to the threshold value for values of the control signal that are greater than the threshold value.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: November 23, 2010
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Alan R. Ball, Stephen P. Robb
  • Publication number: 20100127666
    Abstract: A battery charger circuit includes a transistor having a first current electrode for receiving a charging voltage, a control electrode for receiving a control signal, and a second current electrode for providing an output voltage. The battery charger circuit further includes a rectifier having a terminal coupled to the second current electrode of the transistor, and another terminal coupled to a power supply voltage terminal. The battery charger circuit also includes a control and regulation circuit having an input for receiving a feedback signal representative of a temperature, and an output for providing the control signal. The control and regulation circuit operates in either a switching mode or a linear mode in response to the feedback signal.
    Type: Application
    Filed: November 25, 2008
    Publication date: May 27, 2010
    Inventor: Alan R. Ball
  • Publication number: 20090315585
    Abstract: In one embodiment, a diagnostic circuit is used to test the on-resistance of a transistor.
    Type: Application
    Filed: August 26, 2009
    Publication date: December 24, 2009
    Inventor: Alan R. Ball
  • Patent number: 7602206
    Abstract: In one embodiment, a diagnostic circuit is used to test the on-resistance of a transistor.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: October 13, 2009
    Assignee: Semiconductor Components Industries, L.L.C.
    Inventor: Alan R. Ball
  • Patent number: 7583034
    Abstract: In one embodiment, a vertical N-channel transistor is coupled in a high side configuration to control a current through an LED. A control circuit operates the vertical N-channel transistor to control a value of the current.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: September 1, 2009
    Assignee: Semiconductor Components Industries, L.L.C.
    Inventors: Alejandro Lara-Ascorra, Stephen P. Robb, Alan R. Ball
  • Patent number: 7579818
    Abstract: In one embodiment, a current regulator is configured to form a first signal representative of a current flow through a power switch and to use the first signal to determine an off-time of the power switch.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: August 25, 2009
    Assignee: Semiconductor Components Industries, L.L.C.
    Inventors: Alan R. Ball, David M. Heminger
  • Patent number: 7564666
    Abstract: In one embodiment, a protection device is used to protect a circuit. The protection device has a maximum rated power dissipation that is less than a maximum rated power dissipation of the circuit that is being protected.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: July 21, 2009
    Assignee: Semiconductor Components Industries, L.L.C.
    Inventors: Alan R. Ball, Stephen P. Robb
  • Publication number: 20090160528
    Abstract: A method and circuit for managing thermal performance of an integrated circuit. Temperature sensing circuits and a plurality of power FETs that are coupled together in parallel are manufactured from a semiconductor substrate. Each temperature sensing circuit monitors the temperature of the portion of the semiconductor substrate near or including a corresponding power FET. When the temperature of the semiconductor substrate near one or more of the power FETs reaches a predetermined value, the corresponding temperature sensing circuit reduces a voltage appearing on the gate of the power FET. The reduced voltage increases the on-resistance of the power FET and channels a portion of its current to others of the plurality of power FETs. The power FET continues operating but with a reduced current flow. When the temperature of the semiconductor substrate falls below the predetermined value, the gate voltage of the power FET is increased to its nominal value.
    Type: Application
    Filed: March 4, 2009
    Publication date: June 25, 2009
    Inventors: Alan R. Ball, Stephen P. Robb
  • Patent number: 7528551
    Abstract: In one embodiment, an LED system is controlled to have a substantially unity power factor.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: May 5, 2009
    Assignee: Semiconductor Components Industries, L.L.C.
    Inventor: Alan R. Ball