Patents by Inventor Tomas Tichy

Tomas Tichy 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).

  • Publication number: 20200399298
    Abstract: Methods and compounds are disclosed for treating a disease or condition by inhibiting PSMA (Prostate Specific Membrane Antigen) using prodrugs of 2-PMPA
    Type: Application
    Filed: January 24, 2020
    Publication date: December 24, 2020
    Inventors: BARBARA SLUSHER, RANA RAIS, MARCELA KRECMEROVA, TOMAS TICHY, PAVEL MAJER, ANDREJ JANCARIK
  • Patent number: 10840817
    Abstract: Synchronous rectification in active clamp flyback power converters. At least some example embodiments are methods including: sensing, based on a rate of change of voltage on a drain of a synchronous rectifier field effect transistor (SR FET), that the power converter has entered a charge mode of a transformer arranged for flyback operation; changing, responsive the sensing, a parameter within a SR driver from an original state to a modified state, the SR driver coupled to the SR FET; making the SR FET conductive during a discharge mode of the transformer; sensing, based on a voltage at the drain of the SR FET, that the discharge mode of the converter has ended; returning, responsive to sensing that the discharge mode has ended, the parameter to the original state.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: November 17, 2020
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Dhruv Chopra, Tomas Tichy
  • Patent number: 10544176
    Abstract: Methods and compounds are disclosed for treating a disease or condition by inhibiting PSMA (Prostate Specific Membrane Antigen) using prodrugs of 2-PMPA.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: January 28, 2020
    Assignee: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Barbara Slusher, Rana Rais, Marcela Krecmerova, Tomas Tichy, Pavel Majer, Andrej Jancarik
  • Publication number: 20190352255
    Abstract: Prodrugs of hydroxamate-based GCPII inhibitors and methods of their use for treating a disease or condition are disclosed.
    Type: Application
    Filed: November 20, 2017
    Publication date: November 21, 2019
    Inventors: Barbara Slusher, Rana Rais, Jan Vavra, Tomas Tichy, Pavel Majer, Andrej Jancarik, Lukas Tenora
  • Patent number: 10432098
    Abstract: A synchronous rectifier controller includes an exception timer, one or more blanking timers, and control logic. The control logic may detect a beginning of a conduction phase using a current sense signal. In response to detecting the beginning of the conduction phase, the control logic commences the exception timer, commences a first blanking interval, and asserts the drive signal. In response to an OFF condition being detected, the first blanking interval being elapsed, and the exception timer being running, the control logic de-asserts the drive signal and commences a second blanking interval. In response to an ON condition being detected, the second blanking interval being elapsed, and the exception timer being running, the control logic commences a third blanking interval and asserts the drive signal. The control logic may assert and de-assert the drive signal multiple times while the exception timer is running.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: October 1, 2019
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Karel Ptacek, Tomas Tichy
  • Publication number: 20180323719
    Abstract: A synchronous rectifier controller includes an exception timer, one or more blanking timers, and control logic. The control logic may detect a beginning of a conduction phase using a current sense signal. In response to detecting the beginning of the conduction phase, the control logic commences the exception timer, commences a first blanking interval, and asserts the drive signal. In response to an OFF condition being detected, the first blanking interval being elapsed, and the exception timer being running, the control logic de-asserts the drive signal and commences a second blanking interval. In response to an ON condition being detected, the second blanking interval being elapsed, and the exception timer being running, the control logic commences a third blanking interval and asserts the drive signal. The control logic may assert and de-assert the drive signal multiple times while the exception timer is running.
    Type: Application
    Filed: July 19, 2018
    Publication date: November 8, 2018
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Karel PTACEK, Tomas TICHY
  • Patent number: 10097097
    Abstract: A method and synchronous rectifier controller uses minimum off and on time blanking to avoid switching the switching transistor at incorrect times responsive to transients in the current sense signal. The minimum off time timer is commenced only when the current sense signal is above a reset threshold, and is reset when the current sense voltage falls below the reset threshold. Resetting the minimum off time timer in this manner avoids false starts of the minimum off time timer due to transients and allows the SRC to properly synchronize with the conduction and blocking phases of rectifier operation.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: October 9, 2018
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Tomas Tichy, Karel Ptacek
  • Publication number: 20180244705
    Abstract: Methods and compounds are disclosed for treating a disease or condition by inhibiting PSMA (Prostate Specific Membrane Antigen) using prodrugs of 2-PMPA.
    Type: Application
    Filed: May 1, 2018
    Publication date: August 30, 2018
    Inventors: BARBARA SLUSHER, RANA RAIS, MARCELA KRECMEROVA, TOMAS TICHY, PAVEL MAJER, ANDREJ JANCARIK
  • Patent number: 10063154
    Abstract: A power conversion circuit including an SR MOSFET is provided. A minimum off-time timer for the SR MOSFET is started. A voltage potential at a first terminal of the SR MOSFET is measured. The SR MOSFET is turned on after a rate of change over time of the voltage potential exceeds a first threshold and before the minimum off-time timer expires.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: August 28, 2018
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Karel Ptacek, Tomas Tichy
  • Patent number: 10050541
    Abstract: A synchronous rectifier controller includes an exception timer, one or more blanking timers, and control logic. The control logic may detect a beginning of a conduction phase using a current sense signal. In response to detecting the beginning of the conduction phase, the control logic commences the exception timer, commences a first blanking interval, and asserts the drive signal. In response to an OFF condition being detected, the first blanking interval being elapsed, and the exception timer being running, the control logic de-asserts the drive signal and commences a second blanking interval. In response to an ON condition being detected, the second blanking interval being elapsed, and the exception timer being running, the control logic commences a third blanking interval and asserts the drive signal. The control logic may assert and de-assert the drive signal multiple times while the exception timer is running.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: August 14, 2018
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Karel Ptacek, Tomas Tichy
  • Patent number: 9988407
    Abstract: Methods and compounds are disclosed for treating a disease or condition by inhibiting PSMA (Prostate Specific Membrane Antigen) using prodrugs of 2-PMPA.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: June 5, 2018
    Assignees: THE JOHNS HOPKINS UNIVERSITY, INSTITUTE OF ORGANIC CHEMISTRY AND BIOCHEMISTRY AS CR V.V.I.
    Inventors: Barbara Slusher, Rana Rais, Marcela Krecmerova, Tomas Tichy, Pavel Majer, Andrej Jancarik
  • Patent number: 9973091
    Abstract: A switched mode power supply, in some embodiments, comprises a synchronous rectification transistor switch including a gate, and it further comprises an output driver coupled to the gate and providing a driving signal to the gate. The driving signal is determined based on a dynamically controllable clamp signal and a prior driving signal.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: May 15, 2018
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Karel Ptacek, Tomas Tichy
  • Publication number: 20180054132
    Abstract: A synchronous rectifier controller includes an exception timer, one or more blanking timers, and control logic. The control logic may detect a beginning of a conduction phase using a current sense signal. In response to detecting the beginning of the conduction phase, the control logic commences the exception timer, commences a first blanking interval, and asserts the drive signal. In response to an OFF condition being detected, the first blanking interval being elapsed, and the exception timer being running, the control logic de-asserts the drive signal and commences a second blanking interval. In response to an ON condition being detected, the second blanking interval being elapsed, and the exception timer being running, the control logic commences a third blanking interval and asserts the drive signal. The control logic may assert and de-assert the drive signal multiple times while the exception timer is running.
    Type: Application
    Filed: November 3, 2017
    Publication date: February 22, 2018
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Karel PTACEK, Tomas TICHY
  • Patent number: 9837916
    Abstract: A synchronous rectifier controller includes an exception timer, one or more blanking timers, and control logic. The control logic may detect a beginning of a conduction phase using a current sense signal. In response to detecting the beginning of the conduction phase, the control logic commences the exception timer, commences a first blanking interval, and asserts the drive signal. In response to an OFF condition being detected, the first blanking interval being elapsed, and the exception timer being running, the control logic de-asserts the drive signal and commences a second blanking interval. In response to an ON condition being detected, the second blanking interval being elapsed, and the exception timer being running, the control logic commences a third blanking interval and asserts the drive signal. The control logic may assert and de-assert the drive signal multiple times while the exception timer is running.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: December 5, 2017
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Karel Ptacek, Tomas Tichy
  • Publication number: 20170317598
    Abstract: A power conversion circuit including an SR MOSFET is provided. A minimum off-time timer for the SR MOSFET is started. A voltage potential at a first terminal of the SR MOSFET is measured. The SR MOSFET is turned on after a rate of change over time of the voltage potential exceeds a first threshold and before the minimum off-time timer expires.
    Type: Application
    Filed: April 29, 2016
    Publication date: November 2, 2017
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Karel PTACEK, Tomas TICHY
  • Publication number: 20170226141
    Abstract: Methods and compounds are disclosed for treating a disease or condition by inhibiting PSMA (Prostate Specific Membrane Antigen) using prodrugs of 2-PMPA.
    Type: Application
    Filed: August 6, 2015
    Publication date: August 10, 2017
    Applicants: The Johns Hopkins University, Institute of Organic Chemistry and Biochemistry as Cr v.v.i.
    Inventors: Barbara SLUSHER, Rana RAIS, Marcela KRECMEROVA, Tomas TICHY, Pavel MAJER, Andrej JANCARIK
  • Publication number: 20160204701
    Abstract: A switched mode power supply, in some embodiments, comprises a synchronous rectification transistor switch including a gate, and it further comprises an output driver coupled to the gate and providing a driving signal to the gate. The driving signal is determined based on a dynamically controllable clamp signal and a prior driving signal.
    Type: Application
    Filed: January 14, 2015
    Publication date: July 14, 2016
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Karel PTACEK, Tomas TICHY
  • Publication number: 20150318790
    Abstract: A method and synchronous rectifier controller uses minimum off and on time blanking to avoid switching the switching transistor at incorrect times responsive to transients in the current sense signal. The minimum off time timer is commenced only when the current sense signal is above a reset threshold, and is reset when the current sense voltage falls below the reset threshold. Resetting the minimum off time timer in this manner avoids false starts of the minimum off time timer due to transients and allows the SRC to properly synchronize with the conduction and blocking phases of rectifier operation.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 5, 2015
    Applicant: Semiconductor Components Industries, LLC
    Inventors: TOMAS TICHY, KAREL PTACEK
  • Patent number: 9001532
    Abstract: In one embodiment, a synchronous rectifier controller is configured to initiate forming an off-time interval for a first period of time responsively to the controller forming a disable state of a switching signal wherein the control circuit maintains the switching signal in the disable state for at least the off-time interval. The controller is also configured to restart forming the off-time interval responsively to a voltage of a synchronous rectifier becoming a first value prior to expiration of the first period of time.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: April 7, 2015
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Lukas Olivik, Roman Stuler, Tomas Tichy
  • Publication number: 20140192575
    Abstract: In one embodiment, a synchronous rectifier controller is configured to initiate forming an off-time interval for a first period of time responsively to the controller forming a disable state of a switching signal wherein the control circuit maintains the switching signal in the disable state for at least the off-time interval. The controller is also configured to restart forming the off-time interval responsively to a voltage of a synchronous rectifier becoming a first value prior to expiration of the first period of time.
    Type: Application
    Filed: January 9, 2013
    Publication date: July 10, 2014
    Inventors: Lukas Olivik, Roman Stuler, Tomas Tichy