Patents by Inventor Bertram J. Rodgers
Bertram J. Rodgers 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: 10720832Abstract: Circuits comprising: a capacitor; switches that, when State0, couple the capacitor in parallel with the load and, when State1, couple the capacitor in series with the load, wherein a first of the switches connects the capacitor to ground when in State0 and wherein a second of the switches connects the capacitor to an input voltage when in State1; a third switch, wherein a first side of the third switch is connected to the capacitor identically to one of the first switch and the second switch (OFWSW), wherein the third switch switches identically to the OFWSW, wherein the third switch is smaller than the OFWSW; a first resistor connected to the second side of the third switch; and a hardware processor that measures a current flowing through the first resistor and estimates the current provided to the load based on the current measured as flowing through the first resistor.Type: GrantFiled: January 31, 2019Date of Patent: July 21, 2020Assignee: Lion Semiconductor Inc.Inventors: Hans Meyvaert, Thomas Li, Fred Chen, John Crossley, Zhipeng Li, Bertram J. Rodgers
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Publication number: 20200144908Abstract: Circuits comprising: a capacitor; switches that, when State0, couple the capacitor in parallel with the load and, when State1, couple the capacitor in series with the load, wherein a first of the switches connects the capacitor to ground when in State0 and wherein a second of the switches connects the capacitor to an input voltage when in State1; a third switch, wherein a first side of the third switch is connected to the capacitor identically to one of the first switch and the second switch (OFWSW), wherein the third switch switches identically to the OFWSW, wherein the third switch is smaller than the OFWSW; a first resistor connected to the second side of the third switch; and a hardware processor that measures a current flowing through the first resistor and estimates the current provided to the load based on the current measured as flowing through the first resistor.Type: ApplicationFiled: January 31, 2019Publication date: May 7, 2020Inventors: Hans Meyvaert, Thomas Li, Fred Chen, John Crossley, Zhipeng Li, Bertram J. Rodgers
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Patent number: 10243457Abstract: A voltage regulator system, comprising: a switched capacitor (SC) regulator that operates at a switching frequency and receives an input voltage; and a controller configured to control an operation of the SC regulator by adjusting the switching frequency of the SC regulator based on efficiency. In some embodiments, the switching frequency is swept to determine a best efficiency. In some embodiments, the switching frequency is swept at each of a plurality of values for the input voltage. In some embodiments, the system includes further one or more switches in series with the SC regulator. In some embodiments, the SC regulator includes an output terminal that is coupled to a battery.Type: GrantFiled: November 1, 2017Date of Patent: March 26, 2019Assignee: Lion Semiconductor Inc.Inventors: Alberto Alessandro Angelo Puggelli, Thomas Li, Hans Meyvaert, Bertram J. Rodgers, Zhipeng Li, Wonyoung Kim
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Publication number: 20180123453Abstract: A voltage regulator system, comprising: a switched capacitor (SC) regulator that operates at a switching frequency and receives an input voltage; and a controller configured to control an operation of the SC regulator by adjusting the switching frequency of the SC regulator based on efficiency. In some embodiments, the switching frequency is swept to determine a best efficiency. In some embodiments, the switching frequency is swept at each of a plurality of values for the input voltage. In some embodiments, the system includes further one or more switches in series with the SC regulator. In some embodiments, the SC regulator includes an output terminal that is coupled to a battery.Type: ApplicationFiled: November 1, 2017Publication date: May 3, 2018Inventors: Alberto Alessandro Angelo Puggelli, Thomas Li, Hans Meyvaert, Bertram J. Rodgers, Zhipeng Li, Wonyoung Kim
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Patent number: 9564772Abstract: An embodiment of a charger may include an input, at least one switch having a first node coupled to a reference voltage, a current sensor coupled between the input and a second node of the at least one switch, an output coupled to a third node of the at least one switch, and a charge controller coupled to the input to determine an input voltage, to the current sensor to determine an input current and to control inputs of the at least one switch. The at least one switch may be responsive to control signals supplied by the charge controller to the control inputs thereof to control voltage and current at the output of the charger. The charge controller may be responsive to the input voltage and the input current to produce the control signals in a manner that maximizes electrical power drawn at the input.Type: GrantFiled: April 25, 2012Date of Patent: February 7, 2017Assignee: Intersil Americas LLCInventors: Weihong Qiu, Xiaozhou Zhou, Jun Liu, Bertram J. Rodgers, III
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Publication number: 20120268063Abstract: An embodiment of a charger may include an input, at least one switch having a first node coupled to a reference voltage, a current sensor coupled between the input and a second node of the at least one switch, an output coupled to a third node of the at least one switch, and a charge controller coupled to the input to determine an input voltage, to the current sensor to determine an input current and to control inputs of the at least one switch. The at least one switch may be responsive to control signals supplied by the charge controller to the control inputs thereof to control voltage and current at the output of the charger. The charge controller may be responsive to the input voltage and the input current to produce the control signals in a manner that maximizes electrical power drawn at the input.Type: ApplicationFiled: April 25, 2012Publication date: October 25, 2012Applicant: INTERSIL AMERICAS LLCInventors: Weihong Qiu, Xiaozhou Zhou, Jun Liu, Bertram J. Rodgers, III
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Publication number: 20120235630Abstract: An embodiment of a charger may include an input, at least one switch having a first node coupled to a reference voltage, a current sensor coupled between the input and a second node of the at least one switch, an output coupled to a third node of the at least one switch, and a charge controller coupled to the input to determine an input voltage, to the current sensor to determine an input current and to control inputs of the at least one switch. The at least one switch may be responsive to control signals supplied by the charge controller to the control inputs thereof to control voltage and current at the output of the charger. The charge controller may be responsive to the input voltage and the input current to produce the control signals in a manner that maximizes electrical power drawn at the input.Type: ApplicationFiled: March 15, 2012Publication date: September 20, 2012Applicant: INTERSIL AMERICAS LLCInventors: Weihong Qiu, Xiaozhou Zhou, Jun Liu, Bertram J. Rodgers, III
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Patent number: 7502264Abstract: Circuits, methods, and apparatus that provide waveforms having controlled rise and fall times, as well as accurate peak voltages. One embodiment provides circuitry for generating a clock signal and a current that are adjusted for an on-chip capacitance variation. This current is then used to generate rising and falling edges of a waveform. The clock signal is used to determine timing of transitions in the waveform. A bandgap or similar reference voltage is used to determine the peak voltage. This waveform is then gained using an amplifier circuit, and the output of the amplifier circuit is used as a programming voltage waveform for an EE-PROM. One embodiment further uses non-overlapping clocks to drive a charge pump that is used to generate a supply voltage for the amplifier circuit that far exceeds the available on-chip supply voltages.Type: GrantFiled: November 30, 2006Date of Patent: March 10, 2009Assignee: Intersil Americas Inc.Inventors: Bertram J. Rodgers, III, Edgardo A. Laber
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Patent number: 7158412Abstract: Circuit methods, and apparatus that provide waveforms having controlled rise and fall times, as well as accurate peak voltages. One embodiment provides circuitry for generating a clock signal and a current that are adjusted for an on-chip capacitance variation. This current is then used to generate rising and falling edges of a waveform. The clock signal is used to determine timing of transitions in the waveform. A bandgap or similar reference voltage is used to determine the peak voltage. This waveform is then gained using an amplifier circuit, and the output of the amplifier circuit is used as a programming voltage waveform for an EE-PROM. One embodiment further uses non-overlapping clocks to drive a charge pump that is used to generate a supply voltage for the amplifier circuit that far exceeds the available on-chip supply voltages.Type: GrantFiled: January 26, 2005Date of Patent: January 2, 2007Assignee: Intersil Americas Inc.Inventors: Bertram J. Rodgers, III, Edgardo A. Laber
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Patent number: 5798692Abstract: A digital compensation circuit for calibrating a sensor includes a serial communication circuit for receiving data relating to a plurality of parameters and a plurality of registers coupled to the serial communication circuit; one of plurality of registers for reading temperature information. The digital compensation circuit further includes a digital trim circuit for adjusting the temperature information in the one of plurality of registers to a predetermined value at an initial calibration temperature. Finally, the digital compensation circuit further includes means responsive to the digital trim circuit for measuring gain and offset at a predetermined value of the physical parameter being measured.Type: GrantFiled: April 1, 1996Date of Patent: August 25, 1998Assignee: Integrated Sensor SolutionsInventors: Finbarr J. Crispie, Bertram J. Rodgers, III, Sofjan Goenawan