Patents by Inventor Joel Turchi

Joel Turchi 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: 10312799
    Abstract: In one form, a power factor correction (PFC) controller, comprising includes a regulation circuit, a dead-time detection circuit, and a pulse width modulator. The regulation circuit provides a control voltage in response to a feedback voltage received at a feedback input terminal, wherein the feedback voltage is proportional to an output voltage. The dead-time detection circuit has an input coupled to a zero current detection input terminal, and an output for providing a dead-time signal. The pulse width modulator is responsive to the control voltage and the dead-time signal to provide a drive signal that controls conduction of a switch to improve a power factor of an offline converter, wherein the pulse width modulator modulates both an on-time and a switching period of the drive signal using the dead-time signal in a discontinuous conduction mode.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: June 4, 2019
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Joel Turchi, Radim Mlcousek, Lukas Olivik
  • Patent number: 10097082
    Abstract: An integrated circuit power factor controller includes a pulse width modulator and a line sensing circuit. The pulse width modulator has a first input for receiving a feedback signal, a second input for receiving a line sense signal, and an output for providing a drive signal having a duty cycle formed in response to the feedback signal and the line sense signal. The line sensing circuit has an input for receiving the drive signal, and an output coupled to the second input of the pulse width modulator for providing the line sense signal. The line sensing circuit forms the line sense signal in response to measuring a duty ratio of the drive signal. In another form, an offline converter includes an integrated circuit power factor controller that provides a line sense signal in response to a duty ratio of the drive signal without measuring a voltage on the input line.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: October 9, 2018
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Joel Turchi, Christophe Basso
  • Patent number: 10008924
    Abstract: An integrated circuit power factor controller includes a feedback input terminal for receiving a feedback signal representative of an output voltage, a control terminal for receiving an error signal and adapted to be coupled to a compensation network, a drive terminal for providing a drive signal and adapted to be coupled to a transistor, and a pulse width modulator. The pulse width modulator is coupled to the feedback input terminal, the control terminal, and the drive terminal, and provides the drive signal having a duty cycle formed in response to the feedback signal. The pulse width modulator includes a line sensing multiplier having a first input for receiving the error signal, a second input for receiving the drive signal, and an output for providing a multiplied signal, and the pulse width modulator further provides the drive signal in response to the multiplied signal.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: June 26, 2018
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Joel Turchi, Christophe Basso
  • Patent number: 9787202
    Abstract: In accordance with an embodiment, a converter includes a power factor controller that varies the switching frequency of a switching transistor in accordance with a signal representative of power at the input of the converter.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: October 10, 2017
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Joel Turchi
  • Patent number: 9594099
    Abstract: A circuit and method for detecting a brown-out condition and providing a feed-forward transfer function in a power supply circuit. A comparison circuit is coupled to a delay element through a latch. A second delay element is connected between the first delay element and an input of the latch. The output of the first delay element is connected to a clamping circuit via a logic circuit. A first voltage is compared with a reference voltage to generate a comparison voltage, which is transmitted through the latch and the first delay element. The comparison voltage is monitored at an output of the first delay element. A brown-out condition occurs if the comparison voltage being monitored at the output of the first delay element results from the first voltage being less than the reference voltage.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: March 14, 2017
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Joel Turchi, Karel Ptacek, Radim Mlcousek
  • Publication number: 20170012544
    Abstract: In accordance with an embodiment, a converter includes a power factor controller that varies the switching frequency of a switching transistor in accordance with a signal representative of power at the input of the converter.
    Type: Application
    Filed: September 26, 2016
    Publication date: January 12, 2017
    Applicant: Semiconductor Components Industries, LLC
    Inventor: Joel Turchi
  • Patent number: 9484803
    Abstract: A method for regulating an output voltage of a converter is provided in which a switching frequency of a switching device is limited in response to a signal that is representative of a magnitude of a current from an input of the converter and to a sense signal generated in response to an input voltage signal.
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: November 1, 2016
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Joel Turchi
  • Patent number: 9467055
    Abstract: In one embodiment, a method of forming a power supply controller includes forming the power supply controller to receive an input signal that is representative of an ac signal, and forming the power supply controller to form an average value of an output current over a period of a drive signal that is formed by the power supply controller to have a waveshape of substantially one of a squared version of the input signal or a waveshape of the input signal.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: October 11, 2016
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Stephanie Conseil, Joel Turchi
  • Patent number: 9048752
    Abstract: An off-line power converter includes an integrated circuit power factor controller including a multi-function input terminal, a drive terminal for providing a drive signal to a gate of a drive transistor, a processing circuit coupled to the multi-function input terminal and, based on a signal received from the multi-function input terminal, providing at least one current signal representative of a current conducted in the off-line power converter, and at least one voltage signal representative of a voltage provided to a load, and a controller for providing the drive signal selectively in response to the at least one current signal and the at least one voltage signal.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: June 2, 2015
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Jose M. Capilla, Joel Turchi
  • Patent number: 8988048
    Abstract: A method and circuit for generating a clock signal. A power factor correction circuit has n channels operating out of phase and independently. The circuit is able to generate a clock signal for each channel according to the current cycle duration of each channel.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: March 24, 2015
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Joel Turchi, Stéphanie Conseil
  • Publication number: 20150028916
    Abstract: A circuit and method for detecting a brown-out condition and providing a feed-forward transfer function in a power supply circuit. A comparison circuit is coupled to a delay element through a latch. A second delay element is connected between the first delay element and an input of the latch. The output of the first delay element is connected to a clamping circuit via a logic circuit. A first voltage is compared with a reference voltage to generate a comparison voltage, which is transmitted through the latch and the first delay element. The comparison voltage is monitored at an output of the first delay element. A brown-out condition occurs if the comparison voltage being monitored at the output of the first delay element results from the first voltage being less than the reference voltage.
    Type: Application
    Filed: July 21, 2014
    Publication date: January 29, 2015
    Inventors: Joel Turchi, Karel Ptacek, Radim Mlcousek
  • Publication number: 20150023064
    Abstract: In one embodiment, a method of forming a power supply controller includes forming the power supply controller to receive an input signal that is representative of an ac signal, and forming the power supply controller to form an average value of an output current over a period of a drive signal that is formed by the power supply controller to have a waveshape of substantially one of a squared version of the input signal or a waveshape of the input signal.
    Type: Application
    Filed: July 17, 2013
    Publication date: January 22, 2015
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Stephanie Conseil, Joel Turchi
  • Patent number: 8830644
    Abstract: A method and circuit for protecting against an over current condition. A conduction time of one or more transistors is reduced during the over current condition. The conduction time is reduced in an amount that is an increasing function of the amount of the over current. The conduction time may be reduced proportionally to the excess current.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: September 9, 2014
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Joel Turchi, Stéphanie Conseil, Radim Mlcousek
  • Patent number: 8786297
    Abstract: A circuit and method for detecting a brown-out condition and providing a feed-forward transfer function in a power supply circuit. A comparison circuit is coupled to a delay element through a latch. A second delay element is connected between the first delay element and an input of the latch. The output of the first delay element is connected to a clamping circuit via a logic circuit. A first voltage is compared with a reference voltage to generate a comparison voltage, which is transmitted through the latch and the first delay element. The comparison voltage is monitored at an output of the first delay element. A brown-out condition occurs if the comparison voltage being monitored at the output of the first delay element results from the first voltage being less than the reference voltage.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: July 22, 2014
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Joel Turchi, Karel Ptacek, Radim Mlcousek
  • Patent number: 8711578
    Abstract: In one embodiment, a power supply controller is configured to adjust a peak value of a primary current through a power switch responsively to a difference between a demagnetization time and a discharge time of the parasitic leakage inductance of a transformer.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: April 29, 2014
    Assignee: Semiconductor Components Industries, LLC
    Inventor: Joel Turchi
  • Publication number: 20140085947
    Abstract: An off-line power converter includes an integrated circuit power factor controller including a multi-function input terminal, a drive terminal for providing a drive signal to a gate of a drive transistor, a processing circuit coupled to the multi-function input terminal and, based on a signal received from the multi-function input terminal, providing at least one current signal representative of a current conducted in the off-line power converter, and at least one voltage signal representative of a voltage provided to a load, and a controller for providing the drive signal selectively in response to the at least one current signal and the at least one voltage signal.
    Type: Application
    Filed: September 27, 2012
    Publication date: March 27, 2014
    Inventors: Jose M. Capilla, Joel Turchi
  • Publication number: 20140078798
    Abstract: In accordance with an embodiment, a converter includes a power factor controller that varies the switching frequency of a switching transistor in accordance with a signal representative of power at the input of the converter.
    Type: Application
    Filed: December 24, 2010
    Publication date: March 20, 2014
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Joel Turchi
  • Publication number: 20130322130
    Abstract: In one embodiment, a power supply controller is configured to adjust a peak value of a primary current through a power switch responsively to a difference between a demagnetization time and a discharge time of the parasitic leakage inductance of a transformer.
    Type: Application
    Filed: June 5, 2012
    Publication date: December 5, 2013
    Inventor: Joel Turchi
  • Publication number: 20120039007
    Abstract: A method and circuit for protecting against an over current condition. A conduction time of one or more transistors is reduced during the over current condition. The conduction time is reduced in an amount that is an increasing function of the amount of the over current. The conduction time may be reduced proportionally to the excess current.
    Type: Application
    Filed: April 28, 2009
    Publication date: February 16, 2012
    Inventors: Joel Turchi, Stéphanie Conseil, Radim Mlcousek
  • Publication number: 20120032695
    Abstract: A circuit and method for detecting a brown-out condition and providing a feed-forward transfer function in a power supply circuit. A comparison circuit is coupled to a delay element through a latch. A second delay element is connected between the first delay element and an input of the latch. The output of the first delay element is connected to a clamping circuit via a logic circuit. A first voltage is compared with a reference voltage to generate a comparison voltage, which is transmitted through the latch and the first delay element. The comparison voltage is monitored at an output of the first delay element. A brown-out condition occurs if the comparison voltage being monitored at the output of the first delay element results from the first voltage being less than the reference voltage.
    Type: Application
    Filed: April 28, 2009
    Publication date: February 9, 2012
    Inventors: Joel Turchi, Ptacek Karel, Mlcousek Radim