Patents by Inventor David B. Lidsky
David B. Lidsky 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: 9806523Abstract: A switching circuit for extracting power from an electric power source includes (1) an input port for electrically coupling to the electric power source, (2) an output port for electrically coupling to a load, (3) a first switching device configured to switch between its conductive state and its non-conductive state to transfer power from the input port to the output port, (4) an intermediate switching node that transitions between at least two different voltage levels at least in part due to the first switching device switching between its conductive state and its non-conductive state, and (5) a controller for controlling the first switching device to maximize an average value of a voltage at the intermediate switching node.Type: GrantFiled: May 18, 2015Date of Patent: October 31, 2017Assignee: Volterra Semiconductor LLCInventors: Anthony J. Stratakos, Michael D. McJimsey, Ilija Jergovic, Alexandr Ikriannikov, Artin Der Minassians, Kaiwei Yao, David B. Lidsky, Marco A. Zuniga, Ana Borisavljevic
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Patent number: 9698599Abstract: An electric power system includes N electric power sources and N switching circuits, where N is an integer greater than one. Each switching circuit includes an input port electrically coupled to a respective one of the N electric power sources, an output port, and a first switching device adapted to switch between its conductive and non-conductive states to transfer power from the input port to the output port. The output ports of the N switching circuits are electrically coupled in series and to a load to establish an output circuit. Each of the N switching circuits uses an interconnection inductance of the output circuit as a primary energy storage inductance of the switching circuit.Type: GrantFiled: April 11, 2016Date of Patent: July 4, 2017Assignee: Volterra Semiconductor LLCInventors: Anthony J. Stratakos, Michael D. McJimsey, Ilija Jergovic, Alexandr Ikriannikov, Artin Der Minassians, Kaiwei Yao, David B. Lidsky, Marco A. Zuniga, Ana Borisavljevic
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Patent number: 9577426Abstract: An integrated circuit chip includes a first input port, a first output port, and first and second transistors electrically coupled in series across the first input port. The second transistor is also electrically coupled across the first output port and is adapted to provide a path for current flowing through the first output port when the first transistor is in its non-conductive state. The integrated circuit chip additionally includes first driver circuitry for driving gates of the first and second transistors to cause the transistors to switch between their conductive and non-conductive states. The integrated circuit chip further includes first controller circuitry for controlling the first driver circuitry such that the first and second transistors switch between their conductive and non-conductive states to at least substantially maximize an amount of electric power extracted from an electric power source electrically coupled to the first input port.Type: GrantFiled: December 23, 2014Date of Patent: February 21, 2017Assignee: Volterra Semiconductor LLCInventors: Anthony J. Stratakos, Michael D. McJimsey, Ilija Jergovic, Alexandr Ikriannikov, Artin Der Minassians, Kaiwei Yao, David B. Lidsky, Marco A. Zuniga, Ana Borisavljevic
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Publication number: 20160226247Abstract: An electric power system includes N electric power sources and N switching circuits, where N is an integer greater than one. Each switching circuit includes an input port electrically coupled to a respective one of the N electric power sources, an output port, and a first switching device adapted to switch between its conductive and non-conductive states to transfer power from the input port to the output port. The output ports of the N switching circuits are electrically coupled in series and to a load to establish an output circuit. Each of the N switching circuits uses an interconnection inductance of the output circuit as a primary energy storage inductance of the switching circuit.Type: ApplicationFiled: April 11, 2016Publication date: August 4, 2016Inventors: Anthony J. Stratakos, Michael D. McJimsey, Ilija Jergovic, Alexandr Ikriannikov, Artin Der Minassians, Kaiwei Yao, David B. Lidsky, Marco A. Zuniga, Ana Borisavljevic
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Patent number: 9374003Abstract: A regulated, power supply system is described using multiphase DC-DC converters with dynamic fast-turnon, slow-turnoff phase shedding, early phase turn-on, and both load-voltage and drive-transistor feedback to pulsewidth modulators to provide fast response to load transients. In an embodiment, a system master can automatically determine whether all, or only some, slave phase units are fully populated. The programmable system includes fault detection with current and voltage sensing, telemetry capability, and automatic shutdown capability. In an embodiment, these are buck-type converters with or without coupled inductors, however some of the embodiments illustrated include boost configurations.Type: GrantFiled: April 28, 2014Date of Patent: June 21, 2016Assignee: Volterra Semiconductor LLCInventors: Michael D. McJimsey, David B. Lidsky, Andrew Burstein, Giovanni Garcea, Jeremy M. Flasck, Ilija Jergovic, Andrea Pizzutelli
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Patent number: 9312769Abstract: An electric power system includes N electric power sources and N switching circuits, where N is an integer greater than one. Each switching circuit includes an input port electrically coupled to a respective one of the N electric power sources, an output port, and a first switching device adapted to switch between its conductive and non-conductive states to transfer power from the input port to the output port. The output ports of the N switching circuits are electrically coupled in series and to a load to establish an output circuit. Each of the N switching circuits uses an interconnection inductance of the output circuit as a primary energy storage inductance of the switching circuit.Type: GrantFiled: September 10, 2014Date of Patent: April 12, 2016Assignee: Volterra Semiconductor LLCInventors: Anthony J. Stratakos, Michael D. McJimsey, Ilija Jergovic, Alexandr Ikriannikov, Artin Der Minassians, Kaiwei Yao, David B. Lidsky, Marco A. Zuniga, Ana Borisavljevic
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Publication number: 20150256077Abstract: A switching circuit for extracting power from an electric power source includes (1) an input port for electrically coupling to the electric power source, (2) an output port for electrically coupling to a load, (3) a first switching device configured to switch between its conductive state and its non-conductive state to transfer power from the input port to the output port, (4) an intermediate switching node that transitions between at least two different voltage levels at least in part due to the first switching device switching between its conductive state and its non-conductive state, and (5) a controller for controlling the first switching device to maximize an average value of a voltage at the intermediate switching node.Type: ApplicationFiled: May 18, 2015Publication date: September 10, 2015Inventors: Anthony J. Stratakos, Michael D. McJimsey, Ilija Jergovic, Alexandr Ikriannikov, Artin Der Minassians, Kaiwei Yao, David B. Lidsky, Marco A. Zuniga, Ana Borisavljevic
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Patent number: 9035626Abstract: A switching circuit for extracting power from an electric power source includes (1) an input port for electrically coupling to the electric power source, (2) an output port for electrically coupling to a load, (3) a first switching device configured to switch between its conductive state and its non-conductive state to transfer power from the input port to the output port, (4) an intermediate switching node that transitions between at least two different voltage levels at least in part due to the first switching device switching between its conductive state and its non-conductive state, and (5) a controller for controlling the first switching device to maximize an average value of a voltage at the intermediate switching node.Type: GrantFiled: August 17, 2011Date of Patent: May 19, 2015Assignee: Volterra Semiconductor CorporationInventors: Anthony J. Stratakos, Michael D. McJimsey, Ilija Jergovic, Alexandr Ikriannikov, Artin Der Minassians, Kaiwei Yao, David B. Lidsky, Marco A. Zuniga, Ana Borisavljevic
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Publication number: 20150108960Abstract: An integrated circuit chip includes a first input port, a first output port, and first and second transistors electrically coupled in series across the first input port. The second transistor is also electrically coupled across the first output port and is adapted to provide a path for current flowing through the first output port when the first transistor is in its non-conductive state. The integrated circuit chip additionally includes first driver circuitry for driving gates of the first and second transistors to cause the transistors to switch between their conductive and non-conductive states. The integrated circuit chip further includes first controller circuitry for controlling the first driver circuitry such that the first and second transistors switch between their conductive and non-conductive states to at least substantially maximize an amount of electric power extracted from an electric power source electrically coupled to the first input port.Type: ApplicationFiled: December 23, 2014Publication date: April 23, 2015Inventors: Anthony J. Stratakos, Michael D. McJimsey, Ilija Jergovic, Alexandr Ikriannikov, Artin Der Minassians, Kaiwei Yao, David B. Lidsky, Marco A. Zuniga, Ana Borisavljevic
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Patent number: 8946937Abstract: An integrated circuit chip includes a first input port, a first output port, and first and second transistors electrically coupled in series across the first input port. The second transistor is also electrically coupled across the first output port and is adapted to provide a path for current flowing through the first output port when the first transistor is in its non-conductive state. The integrated circuit chip additionally includes first driver circuitry for driving gates of the first and second transistors to cause the transistors to switch between their conductive and non-conductive states. The integrated circuit chip further includes first controller circuitry for controlling the first driver circuitry such that the first and second transistors switch between their conductive and non-conductive states to at least substantially maximize an amount of electric power extracted from an electric power source electrically coupled to the first input port.Type: GrantFiled: August 17, 2011Date of Patent: February 3, 2015Assignee: Volterra Semiconductor CorporationInventors: Anthony J. Stratakos, Michael D. McJimsey, Ilija Jergovic, Alexandr Ikriannikov, Artin Der Minassians, Kaiwei Yao, David B. Lidsky, Marco A. Zuniga, Ana Borisavljevic
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Publication number: 20140375134Abstract: An electric power system includes N electric power sources and N switching circuits, where N is an integer greater than one. Each switching circuit includes an input port electrically coupled to a respective one of the N electric power sources, an output port, and a first switching device adapted to switch between its conductive and non-conductive states to transfer power from the input port to the output port. The output ports of the N switching circuits are electrically coupled in series and to a load to establish an output circuit. Each of the N switching circuits uses an interconnection inductance of the output circuit as a primary energy storage inductance of the switching circuit.Type: ApplicationFiled: September 10, 2014Publication date: December 25, 2014Inventors: Anthony J. Stratakos, Michael D. McJimsey, Ilija Jergovic, Alexandr Ikriannikov, Artin Der Minassians, Kaiwei Yao, David B. Lidsky, Marco A. Zuniga, Ana Borisavljevic
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Patent number: 8872384Abstract: An electric power system includes N electric power sources and N switching circuits, where N in an integer greater than one. Each switching circuit includes an input port electrically coupled to a respective one of the N electric power sources, an output port, and a first switching device adapted to switch between its conductive and non-conductive states to transfer power from the input port to the output port. The output ports of the N switching circuits are electrically coupled in series and to a load to establish an output circuit. Each of the N switching circuits uses an interconnection inductance of the output circuit as a primary energy storage inductance of the switching circuit.Type: GrantFiled: August 17, 2011Date of Patent: October 28, 2014Assignee: Volterra Semiconductor CorporationInventors: Anthony J. Stratakos, Michael D. McJimsey, Ilija Jergovic, Alexandr Ikriannikov, Artin Der Minassians, Kaiwei Yao, David B. Lidsky, Marco A. Zuniga, Ana Borisavljevic
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Patent number: 8710810Abstract: A regulated, power supply system is described using multiphase DC-DC converters with dynamic fast-turnon, slow-turnoff phase shedding, early phase turn-on, and both load-voltage and drive-transistor feedback to pulsewidth modulators to provide fast response to load transients. In an embodiment, a system master can automatically determine whether all, or only some, slave phase units are fully populated. The programmable system includes fault detection with current and voltage sensing, telemetry capability, and automatic shutdown capability. In an embodiment, these are buck-type converters with or without coupled inductors, however some of the embodiments illustrated include boost configurations.Type: GrantFiled: June 23, 2011Date of Patent: April 29, 2014Assignee: Volterra Semiconductor CorporationInventors: Michael D. McJimsey, David B. Lidsky, Andrew Burstein, Giovanni Garcea, Jeremy M. Flasck, Ilija Jergovic, Andrea Pizzutelli
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Publication number: 20120043823Abstract: A switching circuit for extracting power from an electric power source includes (1) an input port for electrically coupling to the electric power source, (2) an output port for electrically coupling to a load, (3) a first switching device configured to switch between its conductive state and its non-conductive state to transfer power from the input port to the output port, (4) an intermediate switching node that transitions between at least two different voltage levels at least in part due to the first switching device switching between its conductive state and its non-conductive state, and (5) a controller for controlling the first switching device to maximize an average value of a voltage at the intermediate switching node.Type: ApplicationFiled: August 17, 2011Publication date: February 23, 2012Applicant: VOLTERRA SEMICONDUCTOR CORPORATIONInventors: Anthony J. Stratakos, Michael D. McJimsey, Ilija Jergovic, Alexandr Ikriannikov, Artin Der Minassians, Kaiwei Yao, David B. Lidsky, Marco A. Zuniga, Ana Borisavljevic
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Publication number: 20120043818Abstract: An electric power system includes N electric power sources and N switching circuits, where N in an integer greater than one. Each switching circuit includes an input port electrically coupled to a respective one of the N electric power sources, an output port, and a first switching device adapted to switch between its conductive and non-conductive states to transfer power from the input port to the output port. The output ports of the N switching circuits are electrically coupled in series and to a load to establish an output circuit. Each of the N switching circuits uses an interconnection inductance of the output circuit as a primary energy storage inductance of the switching circuit.Type: ApplicationFiled: August 17, 2011Publication date: February 23, 2012Applicant: VOLTERRA SEMICONDUCTOR CORPORATIONInventors: Anthony J. Stratakos, Michael D. McJimsey, Ilija Jergovic, Alexandr Ikriannikov, Artin Der Minassians, Kaiwei Yao, David B. Lidsky, Marco A. Zuniga, Ana Borisavljevic
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Publication number: 20120044014Abstract: An integrated circuit chip includes a first input port, a first output port, and first and second transistors electrically coupled in series across the first input port. The second transistor is also electrically coupled across the first output port and is adapted to provide a path for current flowing through the first output port when the first transistor is in its non-conductive state. The integrated circuit chip additionally includes first driver circuitry for driving gates of the first and second transistors to cause the transistors to switch between their conductive and non-conductive states. The integrated circuit chip further includes first controller circuitry for controlling the first driver circuitry such that the first and second transistors switch between their conductive and non-conductive states to at least substantially maximize an amount of electric power extracted from an electric power source electrically coupled to the first input port.Type: ApplicationFiled: August 17, 2011Publication date: February 23, 2012Applicant: VOLTERRA SEMICONDUCTOR CORPORATIONInventors: Anthony J. Stratakos, Michael D. McJimsey, Ilija Jergovic, Alexandr Ikriannikov, Artin Der Minassians, Kaiwei Yao, David B. Lidsky, Marco A. Zuniga, Ana Borisavljevic
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Patent number: 7091736Abstract: A method and apparatus for determining a setting specified from a plurality of the settings for a function provided in an integrated circuit, wherein the setting is specified by connecting an external measurement resistor to a measurement terminal of the integrated circuit, comprises applying a direct current to the measurement terminal of the integrated circuit, thereby producing a measurement voltage at the measurement terminal; applying the direct current to a reference terminal of the integrated circuit, wherein the reference terminal has an external reference resistor connected thereto, thereby producing a reference voltage at the reference terminal; quantizing a voltage level of a difference voltage representing a voltage difference between the reference voltage and the measurement voltage, thereby producing a quantized voltage; and providing control signals to a functional module within the integrated circuit, the control signals representing the one of the settings corresponding to the quantized voltaType: GrantFiled: May 16, 2005Date of Patent: August 15, 2006Assignee: Volterra Semiconductor CorporationInventors: Jeremy M. Flasck, Andrew J. Burstein, David B. Lidsky, Michael D. McJimsey
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Patent number: 6894501Abstract: A method and apparatus for determining a setting specified from a plurality of the settings for a function provided in an integrated circuit, wherein the setting is specified by connecting an external measurement resistor to a measurement terminal of the integrated circuit, comprises applying a direct current to the measurement terminal of the integrated circuit, thereby producing a measurement voltage at the measurement terminal; applying the direct current to a reference terminal of the integrated circuit, wherein the reference terminal has an external reference resistor connected thereto, thereby producing a reference voltage at the reference terminal; quantizing a voltage level of a difference voltage representing a voltage difference between the reference voltage and the measurement voltage, thereby producing a quantized voltage; and providing control signals to a functional module within the integrated circuit, the control signals representing the one of the settings corresponding to the quantized voltaType: GrantFiled: May 21, 2002Date of Patent: May 17, 2005Assignee: Volterra Semiconductor, Inc.Inventors: Jeremy M. Flasck, Andrew J. Burstein, David B. Lidsky, Michael D. McJimsey
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Patent number: 6853169Abstract: A digitally implemented voltage regulator having including a plurality of slaves coupled in parallel. Each slave includes a switching circuit that intermittently couples an input terminal and an output terminal of the voltage regulator in response to a digital control signal for the corresponding slave. A current sensor in each slave generates a digital first feedback signal derived from the current passing through the corresponding switching circuit. A digital controller receives and uses the digital feedback signals from the plurality of slaves to generate a digital control signal for each slave. The digital controller operates active slaves of the plurality of slaves at determined phase offsets to minimize voltage ripple and maintain the output voltage at the output terminal at a substantially constant level.Type: GrantFiled: July 8, 2003Date of Patent: February 8, 2005Assignee: Volterra Semiconductor CorporationInventors: Andrew J. Burstein, David B. Lidsky, Anthony Stratakos, Charlie Sullivan, William Clark
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Patent number: 6828765Abstract: A method and computer program product for use in a control system. The controller includes a first gain element configured to provide a first predetermined gain to an output error signal describing an error in the output of the control system; a compensator including a control loop including a storage element, the control loop receiving the output error signal, a second gain element configured to provide a second predetermined gain to the output of the control loop, and a detector configured to modify the contents of the storage element according to a predetermined adjustment value when a minimum predetermined excursion occurs in the output error signal; and a combiner configured to combine the outputs of the first and second gain elements to produce an output control signal for the control system.Type: GrantFiled: April 26, 2002Date of Patent: December 7, 2004Assignee: Volterra Semiconductor CorporationInventors: Aaron M. Schultz, David B. Lidsky