Patents by Inventor David Waterson
David Waterson 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).
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Patent number: 11888402Abstract: A control system for use in a power converter having a plurality of outputs comprising a primary switching control block, a secondary control block, and a multi-output control block. The primary switching control block is coupled to control switching of a primary switch. The secondary control block is coupled to control switching of a synchronous rectifier switch. The multi-output control block is coupled to control switching of at least one pulse transfer switch coupled to one of the plurality of outputs. A request for an energy pulse is transferred to the primary switching control block to turn ON the primary switch to transfer the energy pulse to one of the plurality of outputs. The multi-output control block comprises an interface to send the request for the energy pulse and to receive an acknowledge signal to and from the secondary control block.Type: GrantFiled: November 9, 2022Date of Patent: January 30, 2024Assignee: POWER INTEGRATIONS, INC.Inventors: Antonius Jacobus Johannes Werner, Matthew David Waterson, Yuncong Alex Jiang, Roland Sylvere Saint-Pierre
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Publication number: 20230081920Abstract: A control system for use in a power converter having a plurality of outputs comprising a primary switching control block, a secondary control block, and a multi-output control block. The primary switching control block is coupled to control switching of a primary switch. The secondary control block is coupled to control switching of a synchronous rectifier switch. The multi-output control block is coupled to control switching of at least one pulse transfer switch coupled to one of the plurality of outputs. A request for an energy pulse is transferred to the primary switching control block to turn ON the primary switch to transfer the energy pulse to one of the plurality of outputs. The multi-output control block comprises an interface to send the request for the energy pulse and to receive an acknowledge signal to and from the secondary control block.Type: ApplicationFiled: November 9, 2022Publication date: March 16, 2023Applicant: POWER INTEGRATIONS, INC.Inventors: Antonius Jacobus Johannes Werner, Matthew David Waterson, Yuncong Alex Jiang, Roland Sylvere Saint-Pierre
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Patent number: 11539298Abstract: A power converter includes a primary winding and multiple output windings to provide multiple independently controlled and regulated outputs with a common return line. The outputs are coupled to independently regulate constant current, constant voltage, or both constant current and constant voltage outputs. A secondary control block is coupled to control a synchronous rectifier switch coupled to the common return line to synchronize switching with a primary side power switch to provide complementary conduction of the primary winding and the multiple output windings. A plurality of controlled power pulse switches is coupled to the multiple output windings. A request of a power pulse from each of the outputs is transferred through the secondary control block to a primary switch control block to turn on the primary side power switch to transfer a power pulse to the multiple output windings and through controlled power pulse switches to the outputs.Type: GrantFiled: October 30, 2020Date of Patent: December 27, 2022Assignee: Power Integrations, Inc.Inventors: Antonius Jacobus Johannes Werner, Matthew David Waterson, Yuncong Alex Jiang, Roland Sylvere Saint-Pierre
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Patent number: 11342856Abstract: A switched mode power converter has an energy transfer element that delivers an output signal to a load. A power switching device coupled to the primary side of the energy transfer element regulates a transfer of energy to the load. A secondary controller is coupled to receive a feedback signal and output a pulsed signal in response thereto. A primary controller is coupled to receive the pulsed signal and output a drive signal in response thereto, the drive signal being coupled to control switching of the power switching device. A compensation circuit generates an adaptively compensated signal synchronous with the pulsed signal. The adaptively compensated signal has a parameter that is adaptively adjusted in response to a comparison of the feedback signal with a threshold reference signal. The parameter converges towards a final value that produces a desired level of the output signal.Type: GrantFiled: April 9, 2019Date of Patent: May 24, 2022Assignee: POWER INTEGRATIONS, INC.Inventors: Giao Minh Pham, Vikram Balakrishnan, Arthur B. Odell, Antonius Jacobus Johannes Werner, Karl Moore, Matthew David Waterson
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Patent number: 11211870Abstract: Apparatus and methods for sequencing outputs in a multi-output power converter system are disclosed herein. During start-up multiple CC/CV outputs may be sequenced so that energy is first provided to a highest voltage secondary output and subsequently provided to a lowest voltage secondary output. Additionally, control may be exerted so as to concurrently and monotonically increase voltages during at least part of the start-up transient; and concurrent control may be further implemented using control circuitry and a variable reference generator. In some embodiments a variable reference may be generated from a capacitor voltage.Type: GrantFiled: January 16, 2019Date of Patent: December 28, 2021Assignee: POWER INTEGRATIONS, INC.Inventors: Karl Moore, Matthew David Waterson, Antonius Jacobus Johannes Werner
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Publication number: 20210152093Abstract: A power converter includes a primary winding and multiple output windings to provide multiple independently controlled and regulated outputs with a common return line. The outputs are coupled to independently regulate constant current, constant voltage, or both constant current and constant voltage outputs. A secondary control block is coupled to control a synchronous rectifier switch coupled to the common return line to synchronize switching with a primary side power switch to provide complementary conduction of the primary winding and the multiple output windings. A plurality of controlled power pulse switches is coupled to the multiple output windings. A request of a power pulse from each of the outputs is transferred through the secondary control block to a primary switch control block to turn on the primary side power switch to transfer a power pulse to the multiple output windings and through controlled power pulse switches to the outputs.Type: ApplicationFiled: October 30, 2020Publication date: May 20, 2021Applicant: Power Integrations, Inc.Inventors: Antonius Jacobus Johannes Werner, Matthew David Waterson, Yuncong Alex Jiang, Roland Sylvere Saint-Pierre
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Patent number: 10965219Abstract: A controller for use in a power converter with multiple outputs includes a discharge detect circuit coupled to receive a voltage signal from a transformer winding of the power converter to output a discharge signal in response to the voltage signal. A multi-output signal process and interface block is coupled to output request signals to the output selection drive and idle ring visibility logic circuit. An output selection drive and idle ring visibility logic circuit is coupled to receive the discharge signal from the discharge detect circuit and the output request signals from the multi-output signal process and interface block. An idle ring detection circuit is coupled to one of the plurality of output switches and coupled to output an idle ring output signal to generate a next request pulse.Type: GrantFiled: December 4, 2019Date of Patent: March 30, 2021Assignee: Power Integrations, Inc.Inventors: Antonius Jacobus Johannes Werner, Manoj Bhasin, Matthew David Waterson, Karl Moore
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Patent number: 10855191Abstract: A power converter includes a primary winding and multiple output windings to provide multiple independently controlled and regulated outputs with a common return line. The outputs are coupled to independently regulate constant current, constant voltage, or both constant current and constant voltage outputs. A secondary control block is coupled to control a synchronous rectifier switch coupled to the common return line to synchronize switching with a primary side power switch to provide complementary conduction of the primary winding and the multiple output windings. A plurality of controlled power pulse switches is coupled to the multiple output windings. A request of a power pulse from each of the outputs is transferred through the secondary control block to a primary switch control block to turn on the primary side power switch to transfer a power pulse to the multiple output windings and through controlled power pulse switches to the outputs.Type: GrantFiled: March 25, 2019Date of Patent: December 1, 2020Assignee: Power Integrations, Inc.Inventors: Antonius Jacobus Johannes Werner, Matthew David Waterson, Yuncong Alex Jiang, Roland Sylvere Saint-Pierre
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Publication number: 20200106365Abstract: A controller for use in a power converter with multiple outputs includes a discharge detect circuit coupled to receive a voltage signal from a transformer winding of the power converter to output a discharge signal in response to the voltage signal. A multi-output signal process and interface block is coupled to output request signals to the output selection drive and idle ring visibility logic circuit. An output selection drive and idle ring visibility logic circuit is coupled to receive the discharge signal from the discharge detect circuit and the output request signals from the multi-output signal process and interface block. An idle ring detection circuit is coupled to one of the plurality of output switches and coupled to output an idle ring output signal to generate a next request pulse.Type: ApplicationFiled: December 4, 2019Publication date: April 2, 2020Applicant: Power Integrations, Inc.Inventors: ANTONIUS JACOBUS JOHANNES WERNER, Manoj Bhasin, Matthew David Waterson, Karl Moore
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Patent number: 10574145Abstract: A method of dynamically adjusting a storage time of a bipolar junction transistor (BJT) in a switched mode power converter during a switching cycle includes generating a storage time reference signal responsive to an input voltage signal. A collector off signal is generated responsive to a comparison of a current sense signal to a collector off reference threshold signal. The current sense signal is representative of a switch current of the BJT. A base off reference threshold signal is generated responsive to the storage time reference signal and the collector off signal. A base off signal is generated responsive to a comparison of the current sense signal and the base off reference threshold signal. Charging of a base terminal of the BJT is discontinued responsive to the base off signal, and the base terminal of the BJT is discharged responsive to the collector off signal.Type: GrantFiled: August 27, 2018Date of Patent: February 25, 2020Assignee: Power Integrations, Inc.Inventors: Antonius Jacobus Johannes Werner, Manoj Bhasin, Matthew David Waterson, Adrian Kirilov Lefedjiev
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Patent number: 10554134Abstract: A controller for use in a power converter with multiple outputs includes a discharge detect circuit coupled to receive a voltage signal from a transformer winding of the power converter to output a discharge signal in response to the voltage signal. A multi-output signal process and interface block is coupled to output request signals to the output selection drive and idle ring visibility logic circuit. An output selection drive and idle ring visibility logic circuit is coupled to receive the discharge signal from the discharge detect circuit and the output request signals from the multi-output signal process and interface block. An idle ring detection circuit is coupled to one of the plurality of output switches and coupled to output an idle ring output signal to generate a next request pulse.Type: GrantFiled: June 2, 2017Date of Patent: February 4, 2020Assignee: POWER INTEGRATIONS, INC.Inventors: Antonius Jacobus Johannes Werner, Manoj Bhasin, Matthew David Waterson, Karl Moore
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Publication number: 20190372470Abstract: Apparatus and methods for sequencing outputs in a multi-output power converter system are disclosed herein. During start-up multiple CC/CV outputs may be sequenced so that energy is first provided to a highest voltage secondary output and subsequently provided to a lowest voltage secondary output. Additionally, control may be exerted so as to concurrently and monotonically increase voltages during at least part of the start-up transient; and concurrent control may be further implemented using control circuitry and a variable reference generator. In some embodiments a variable reference may be generated from a capacitor voltage.Type: ApplicationFiled: January 16, 2019Publication date: December 5, 2019Applicant: Power Integrations, Inc.Inventors: Karl Moore, Matthew David Waterson, Antonius Jacobus Johannes Werner
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Publication number: 20190348900Abstract: A switched mode power converter has an energy transfer element that delivers an output signal to a load. A power switching device coupled to the primary side of the energy transfer element regulates a transfer of energy to the load. A secondary controller is coupled to receive a feedback signal and output a pulsed signal in response thereto. A primary controller is coupled to receive the pulsed signal and output a drive signal in response thereto, the drive signal being coupled to control switching of the power switching device. A compensation circuit generates an adaptively compensated signal synchronous with the pulsed signal. The adaptively compensated signal has a parameter that is adaptively adjusted in response to a comparison of the feedback signal with a threshold reference signal. The parameter converges towards a final value that produces a desired level of the output signal.Type: ApplicationFiled: April 9, 2019Publication date: November 14, 2019Applicant: Power Integrations, Inc.Inventors: Giao Minh Pham, Vikram Balakrishnan, Arthur B. Odell, Antonius Jacobus Johannes Werner, Karl Moore, Matthew David Waterson
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Publication number: 20190326823Abstract: A power converter includes a primary winding and multiple output windings to provide multiple independently controlled and regulated outputs with a common return line. The outputs are coupled to independently regulate constant current, constant voltage, or both constant current and constant voltage outputs. A secondary control block is coupled to control a synchronous rectifier switch coupled to the common return line to synchronize switching with a primary side power switch to provide complementary conduction of the primary winding and the multiple output windings. A plurality of controlled power pulse switches is coupled to the multiple output windings. A request of a power pulse from each of the outputs is transferred through the secondary control block to a primary switch control block to turn on the primary side power switch to transfer a power pulse to the multiple output windings and through controlled power pulse switches to the outputs.Type: ApplicationFiled: March 25, 2019Publication date: October 24, 2019Applicant: Power Integrations, Inc.Inventors: Antonius Jacobus Johannes Werner, Matthew David Waterson, Yuncong Alex Jiang, Roland Sylvere Saint-Pierre
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Patent number: 10298110Abstract: A switched mode power converter has an energy transfer element that delivers an output signal to a load. A power switching device coupled to the primary side of the energy transfer element regulates a transfer of energy to the load. A secondary controller is coupled to receive a feedback signal and output a pulsed signal in response thereto. A primary controller is coupled to receive the pulsed signal and output a drive signal in response thereto, the drive signal being coupled to control switching of the power switching device. A compensation circuit generates an adaptively compensated signal synchronous with the pulsed signal. The adaptively compensated signal has a parameter that is adaptively adjusted in response to a comparison of the feedback signal with a threshold reference signal. The parameter converges towards a final value that produces a desired level of the output signal.Type: GrantFiled: April 25, 2018Date of Patent: May 21, 2019Assignee: Power Integrations, Inc.Inventors: Giao Minh Pham, Vikram Balakrishnan, Arthur B. Odell, Antonius Jacobus Johannes Werner, Karl Moore, Matthew David Waterson
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Patent number: 10277136Abstract: A power converter includes a primary winding and multiple output windings to provide multiple independently controlled and regulated outputs with a common return line. The outputs are coupled to independently regulate constant current, constant voltage, or both constant current and constant voltage outputs. A secondary control block is coupled to control a synchronous rectifier switch coupled to the common return line to synchronize switching with a primary side power switch to provide complementary conduction of the primary winding and the multiple output windings. A plurality of controlled power pulse switches is coupled to the multiple output windings. A request of a power pulse from each of the outputs is transferred through the secondary control block to a primary switch control block to turn on the primary side power switch to transfer a power pulse to the multiple output windings and through controlled power pulse switches to the outputs.Type: GrantFiled: May 26, 2017Date of Patent: April 30, 2019Assignee: Power Integrations, Inc.Inventors: Antonius Jacobus Johannes Werner, Matthew David Waterson, Yuncong Alex Jiang, Roland Sylvere Saint-Pierre
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Patent number: 10218282Abstract: Apparatus and methods for sequencing outputs in a multi-output power converter system are disclosed herein. During start-up multiple CC/CV outputs may be sequenced so that energy is first provided to a highest voltage secondary output and subsequently provided to a lowest voltage secondary output. Additionally, control may be exerted so as to concurrently and monotonically increase voltages during at least part of the start-up transient; and concurrent control may be further implemented using control circuitry and a variable reference generator. In some embodiments a variable reference may be generated from a capacitor voltage.Type: GrantFiled: May 31, 2018Date of Patent: February 26, 2019Assignee: Power Integrations, Inc.Inventors: Karl Moore, Matthew David Waterson, Antonius Jacobus Johannes Werner
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Patent number: 10214495Abstract: The present invention is related to a use of aminopyrazine derivatives in the manufacture of a medicament for preventing or treating malaria. Specifically, the present invention is related to aminopyrazine derivatives useful for the preparation of a pharmaceutical formulation for the inhibition of malaria parasite proliferation.Type: GrantFiled: July 12, 2016Date of Patent: February 26, 2019Assignee: University of Cape TownInventors: David Waterson, Michael John Witty, Kelly Chibale, Leslie Street, Diego Gonzalez Cabrera, Tanya Paquet
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Publication number: 20180367048Abstract: A method of dynamically adjusting a storage time of a bipolar junction transistor (BJT) in a switched mode power converter during a switching cycle includes generating a storage time reference signal responsive to an input voltage signal. A collector off signal is generated responsive to a comparison of a current sense signal to a collector off reference threshold signal. The current sense signal is representative of a switch current of the BJT. A base off reference threshold signal is generated responsive to the storage time reference signal and the collector off signal. A base off signal is generated responsive to a comparison of the current sense signal and the base off reference threshold signal. Charging of a base terminal of the BJT is discontinued responsive to the base off signal, and the base terminal of the BJT is discharged responsive to the collector off signal.Type: ApplicationFiled: August 27, 2018Publication date: December 20, 2018Inventors: Antonius Jacobus Johannes Werner, Manoj Bhasin, Matthew David Waterson, Adrian Kirilov Lefedjiev
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Publication number: 20180351463Abstract: A controller for use in a power converter with multiple outputs includes a discharge detect circuit coupled to receive a voltage signal from a transformer winding of the power converter to output a discharge signal in response to the voltage signal. A multi-output signal process and interface block is coupled to output request signals to the output selection drive and idle ring visibility logic circuit. An output selection drive and idle ring visibility logic circuit is coupled to receive the discharge signal from the discharge detect circuit and the output request signals from the multi-output signal process and interface block. An idle ring detection circuit is coupled to one of the plurality of output switches and coupled to output an idle ring output signal to generate a next request pulse.Type: ApplicationFiled: June 2, 2017Publication date: December 6, 2018Inventors: Antonius Jacobus Johannes Werner, Manoj Bhasin, Matthew David Waterson, Karl Moore