Patents by Inventor Ivan Bogue
Ivan Bogue 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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Publication number: 20240039404Abstract: A system for determining a power requirement for a device powered by a buck converter on a system on chip based on Time on pulses (Ton) is disclosed. A buck converter supplies output voltage to enable the device. The buck converter is driven by a Ton pulse generator generating Ton pulses to control charging of a load capacitor. A counter counts the Ton pulses during the supply of output voltage while the device is enabled. A controller is coupled to the counter and the buck converter. The controller determines the power requirement for the device based on the count of the Ton pulses. The power requirement may be used to adjust the trim value to change the width of the Ton pulses for greater energy efficiency.Type: ApplicationFiled: June 16, 2023Publication date: February 1, 2024Inventors: Ivan Bogue, Jesse Coulon, Andre Belanger
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Publication number: 20230400909Abstract: In some embodiments, a system comprises a microcontroller system comprising a CPU, an I/O module, and a microcontroller system power input, a power supply comprising a first power supply output providing power at a first power level, and a second power supply output providing power at a second power level, and a switch comprising a signal input communicatively coupled to the I/O module and configured to receive a status signal from the I/O module, a first switch power input electrically coupled to the first power supply output, a second switch power input electrically coupled to the second power supply output, and a switch power output electrically coupled to the microcontroller system power input and configured to output power to the microcontroller system.Type: ApplicationFiled: January 6, 2023Publication date: December 14, 2023Inventors: Ivan Bogue, Yousof Mortazavi, Jesse Coulon, Rajeev Srivastava
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Patent number: 11682967Abstract: A system for determining a power requirement for a device powered by a buck converter on a system on chip based on Time on pulses (Ton) is disclosed. A buck converter supplies output voltage to enable the device. The buck converter is driven by a Ton pulse generator generating Ton pulses to control charging of a load capacitor. A counter counts the Ton pulses during the supply of output voltage while the device is enabled. A controller is coupled to the counter and the buck converter. The controller determines the power requirement for the device based on the count of the Ton pulses. The power requirement may be used to adjust the trim value to change the width of the Ton pulses for greater energy efficiency.Type: GrantFiled: July 29, 2022Date of Patent: June 20, 2023Assignee: Ambiq Micro, Inc.Inventors: Ivan Bogue, Jesse Coulon, Andre Belanger
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Patent number: 11573624Abstract: In some embodiments, a system comprises a microcontroller system comprising a CPU, an I/O module, and a microcontroller system power input, a power supply comprising a first power supply output providing power at a first power level, and a second power supply output providing power at a second power level, and a switch comprising a signal input communicatively coupled to the I/O module and configured to receive a status signal from the I/O module, a first switch power input electrically coupled to the first power supply output, a second switch power input electrically coupled to the second power supply output, and a switch power output electrically coupled to the microcontroller system power input and configured to output power to the microcontroller system.Type: GrantFiled: June 8, 2022Date of Patent: February 7, 2023Assignee: Ambiq Micro, Inc.Inventors: Ivan Bogue, Yousof Mortazavi, Jesse Coulon, Rajeev Srivastava
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Publication number: 20210104948Abstract: A buck converter is disclosed that may operate in a low power mode or a high power mode based on a power requirements of a load. In the high power mode, modifications to increase frequency response include a higher polling frequency for a comparator, a lower impedance divider in a feedback circuit, a higher biasing current for a comparator, and larger switches for providing current to a reactive step-down circuit of the buck converter. In the low power mode these modifications are reversed. The buck converter may make use of an improved strong arm comparator and a circuit for sensing presence of an inductor in the reactive step-down circuit.Type: ApplicationFiled: December 14, 2020Publication date: April 8, 2021Inventors: Ivan Bogue, Yousof Mortazavi
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Patent number: 10897203Abstract: A buck converter may operate in a low power mode or a high power mode based on a power requirements of a load. In the high power mode, modifications to increase frequency response include a higher polling frequency for a comparator, a lower impedance divider in a feedback circuit, a higher biasing current for a comparator, and larger switches for providing current to a reactive step-down circuit of the buck converter. In the low power mode these modifications are reversed. The buck converter may make use of an improved strong arm comparator and a circuit for sensing presence of an inductor in the reactive step-down circuit.Type: GrantFiled: April 4, 2019Date of Patent: January 19, 2021Assignee: AMBIQ MICRO, INC.Inventors: Ivan Bogue, Yousof Mortazavi
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Patent number: 10897199Abstract: A buck converter is disclosed that may operate in a low power mode or a high power mode based on a power requirements of a load. In the high power mode, modifications to increase frequency response include a higher polling frequency for a comparator, a lower impedance divider in a feedback circuit, a higher biasing current for a comparator, and larger switches for providing current to a reactive step-down circuit of the buck converter. In the low power mode these modifications are reversed. The buck converter may make use of an improved strong arm comparator and a circuit for sensing presence of an inductor in the reactive step-down circuit.Type: GrantFiled: April 4, 2019Date of Patent: January 19, 2021Assignee: AMBIQ MICRO, INC.Inventors: Ivan Bogue, Yanning Lu
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Publication number: 20200321866Abstract: A buck converter is disclosed that may operate in a low power mode or a high power mode based on a power requirements of a load. In the high power mode, modifications to increase frequency response include a higher polling frequency for a comparator, a lower impedance divider in a feedback circuit, a higher biasing current for a comparator, and larger switches for providing current to a reactive step-down circuit of the buck converter. In the low power mode these modifications are reversed. The buck converter may make use of an improved strong arm comparator and a circuit for sensing presence of an inductor in the reactive step-down circuit.Type: ApplicationFiled: April 4, 2019Publication date: October 8, 2020Inventors: Ivan Bogue, Yousof Mortazavi
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Publication number: 20200321865Abstract: A buck converter is disclosed that may operate in a low power mode or a high power mode based on a power requirements of a load. In the high power mode, modifications to increase frequency response include a higher polling frequency for a comparator, a lower impedance divider in a feedback circuit, a higher biasing current for a comparator, and larger switches for providing current to a reactive step-down circuit of the buck converter. In the low power mode these modifications are reversed. The buck converter may make use of an improved strong arm comparator and a circuit for sensing presence of an inductor in the reactive step-down circuit.Type: ApplicationFiled: April 4, 2019Publication date: October 8, 2020Inventors: Ivan Bogue, Yanning Lu
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Publication number: 20200321875Abstract: A buck converter is disclosed that may operate in a low power mode or a high power mode based on a power requirements of a load. In the high power mode, modifications to increase frequency response include a higher polling frequency for a comparator, a lower impedance divider in a feedback circuit, a higher biasing current for a comparator, and larger switches for providing current to a reactive step-down circuit of the buck converter. In the low power mode these modifications are reversed. The buck converter may make use of an improved strong arm comparator and a circuit for sensing presence of an inductor in the reactive step-down circuit.Type: ApplicationFiled: April 4, 2019Publication date: October 8, 2020Inventors: Ivan Bogue, Yousof Mortazavi
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Patent number: 10601322Abstract: A buck converter is disclosed that may operate in a low power mode or a high power mode based on a power requirements of a load. In the high power mode, modifications to increase frequency response include a higher polling frequency for a comparator, a lower impedance divider in a feedback circuit, a higher biasing current for a comparator, and larger switches for providing current to a reactive step-down circuit of the buck converter. In the low power mode these modifications are reversed. The buck converter may make use of an improved strong arm comparator and a circuit for sensing presence of an inductor in the reactive step-down circuit.Type: GrantFiled: April 4, 2019Date of Patent: March 24, 2020Assignee: AMBIQ MICRO, INC.Inventor: Ivan Bogue
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Reference voltage sub-system allowing power up from extended periods of ultra-low power standby mode
Patent number: 10498347Abstract: A reference voltage sub-system that allows fast power up after spending extended periods in an ultra-low power standby mode. The reference voltage sub-system includes a reference voltage buffer, a reference voltage keeper, an active calibration facility for selectively adjusting the reference voltage keeper output to match the reference voltage buffer output, and a selection means for selecting between the reference voltage buffer output and the reference voltage keeper output.Type: GrantFiled: July 23, 2019Date of Patent: December 3, 2019Assignee: Ambiq Micro Inc.Inventor: Ivan Bogue -
Reference Voltage Sub-System Allowing Power Up From Extended Periods of Ultra-Low Power Standby Mode
Publication number: 20190346912Abstract: A reference voltage sub-system that allows fast power up after spending extended periods in an ultra-low power standby mode. The reference voltage sub-system includes a reference voltage buffer, a reference voltage keeper, an active calibration facility for selectively adjusting the reference voltage keeper output to match the reference voltage buffer output, and a selection means for selecting between the reference voltage buffer output and the reference voltage keeper output.Type: ApplicationFiled: July 23, 2019Publication date: November 14, 2019Inventor: Ivan Bogue -
Patent number: 10401942Abstract: A reference voltage sub-system that allows fast power up after spending extended periods in an ultra-low power standby mode. The reference voltage sub-system includes a reference voltage buffer, a reference voltage keeper, an active calibration facility for selectively adjusting the reference voltage keeper output to match the reference voltage buffer output, and a selection means for selecting between the reference voltage buffer output and the reference voltage keeper output.Type: GrantFiled: February 22, 2017Date of Patent: September 3, 2019Assignee: Ambiq Micro Inc.Inventors: Ivan Bogue, Yanning Lu, Bharath Mandyam
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Publication number: 20180239415Abstract: A reference voltage sub-system that allows fast power up after spending extended periods in an ultra-low power standby mode. The reference voltage sub-system includes a reference voltage buffer, a reference voltage keeper, an active calibration facility for selectively adjusting the reference voltage keeper output to match the reference voltage buffer output, and a selection means for selecting between the reference voltage buffer output and the reference voltage keeper output.Type: ApplicationFiled: February 22, 2017Publication date: August 23, 2018Applicant: Ambiq Micro, Inc.Inventors: Ivan Bogue, Yanning Lu, Bharath Mandyam
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Publication number: 20180196452Abstract: A method for digitally calibrating, selectively during normal operation, a low-power reference signal generator adapted to develop an analog reference signal as a function of a digital control signal. In the feed-back loop, an ADC, referenced to a band-gap reference, is adapted to facilitate compensation for drift and other low-frequency errors that may develop in the field. This method can be applied to both voltage and current reference signal generators.Type: ApplicationFiled: January 12, 2017Publication date: July 12, 2018Applicant: Ambiq Micro, Inc.Inventors: Joseph HAMILTON, Yanning LU, Ivan BOGUE
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Patent number: 9000800Abstract: A system for calibrating impedance of an input/output (I/O) buffer on a semiconductor die includes: the I/O buffer; a temperature sensor on the semiconductor die; and a supply sensor on the semiconductor die. The temperature sensor is configured to acquire temperature information for calibrating the I/O buffer. The supply sensor is configured to acquire voltage information for calibrating the I/O buffer. The I/O buffer comprises: a memory component coupled to the temperature and supply sensors and configured to store the acquired temperature or voltage information; a logic component coupled to the memory component; and a driver with driver legs. The driver is coupled to the logic component. The logic component is configured to generate driver control signals representing an on/off configuration for the driver legs of the driver based at least in part on the acquired temperature information or the acquired voltage information stored in the memory component.Type: GrantFiled: September 17, 2012Date of Patent: April 7, 2015Assignee: Xilinx, Inc.Inventors: Ionut C. Cical, Edward Cullen, Ivan Bogue
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Patent number: 8970419Abstract: An analog-to-digital converter (“ADC”). The ADC includes a bank of comparators and a window controller. The window controller is coupled to the bank of comparators to selectively activate first comparators of the bank of comparators associated with a window size and to selectively inactivate second comparators of the bank of comparators.Type: GrantFiled: June 27, 2013Date of Patent: March 3, 2015Assignee: Xilinx, Inc.Inventors: Brendan Farley, James Hudner, Ivan Bogue, Declan Carey, Darragh Walsh, Marc Erett
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Publication number: 20150002326Abstract: An analog-to-digital converter (“ADC”) is disclosed. The ADC includes a bank of comparators and a window controller. The window controller is coupled to the bank of comparators to selectively activate first comparators of the bank of comparators associated with a window size and to selectively inactivate second comparators of the bank of comparators.Type: ApplicationFiled: June 27, 2013Publication date: January 1, 2015Inventors: Brendan Farley, James Hudner, Ivan Bogue, Declan Carey, Darragh Walsh, Marc Erett
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Patent number: 8766832Abstract: An analog-to-digital converter (ADC) includes an analog input stage including an output configured to generate an analog output signal and a digital stage coupled the output of the analog input stage. The digital stage is configured to classify the analog output signal into one of a plurality of consecutive voltage ranges. Responsive to the analog output signal being classified in a first enumerated voltage range of the plurality of voltage ranges during a rotation of a sample, a voltage for a subsequent rotation is determined as if the analog output signal is classified into a non-enumerated voltage range selected according to a state of a random number signal.Type: GrantFiled: November 5, 2012Date of Patent: July 1, 2014Assignee: Xilinx, Inc.Inventor: Ivan Bogue