Patents by Inventor Yung Fa Chueh
Yung Fa Chueh 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: 10116012Abstract: Desktop power use behavior may be detected while a portable information handling system or any other type of battery powered information handling system is operating on external power such as an AC adapter. The desktop power use behavior may be detected by monitoring one or more power usage parameters to detect usage characteristics that indicate a battery powered information handling system is being operated in a manner that is similar to operation of a desktop information handling system. Upon detection of desktop behavior, one or more processing devices of the information handling system may respond by taking one or more desktop use response actions.Type: GrantFiled: February 22, 2016Date of Patent: October 30, 2018Assignee: Dell Products L.P.Inventors: Chia-Fa Chang, Hua Chung, Ligong Wang, Yung Fa Chueh
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Patent number: 9760139Abstract: Methods and systems for power supply unit (PSU) current sharing may include an In-System Power Monitoring and Management (IPMM) module monitoring an output value of a first power supply unit in a multi-power supply system. In an embodiment, the IPMM module may monitor an output value of a second power supply unit in the multi-power supply system. Additionally, the IPMM module may monitor an output performance parameter for the multi-power supply system. Furthermore, the IPMM module may adjust a setting of at least one of the first power supply unit and the second power supply unit for optimization of a current sharing performance parameter of the multi-power supply system. In various embodiments, the setting may include a droop voltage value, a distribution impedance value, or a set voltage increment value of at least one of the first power supply unit and the second power supply unit.Type: GrantFiled: April 2, 2015Date of Patent: September 12, 2017Assignee: DELL PRODUCTS, L.P.Inventors: Yung Fa Chueh, Tsai-Fu Hung, Chung-Fu Lai, Shih-Chieh Wang
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Patent number: 9568990Abstract: An AC-to-DC power adapter provides DC power to an information handling system at a first higher DC voltage or a second lower DC voltage based upon a power state of the information handling system. For example, approximately 19 Volts DC power is provided if the information handling system is in an on state or if the information handling system is charging a battery. Approximately 13 Volts DC power is provided if the information handling system is in a reduced power state, such as an ACPI S3 state, with a battery having a substantially full charge.Type: GrantFiled: October 1, 2013Date of Patent: February 14, 2017Assignee: Dell Products L.P.Inventors: Yung Fa Chueh, Wen-Hung Huang, Ching Ti, So-Yu Weng
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Publication number: 20160291660Abstract: Methods and systems for power supply unit (PSU) current sharing may include an In-System Power Monitoring and Management (IPMM) module monitoring an output value of a first power supply unit in a multi-power supply system. In an embodiment, the IPMM module may monitor an output value of a second power supply unit in the multi-power supply system. Additionally, the IPMM module may monitor an output performance parameter for the multi-power supply system. Furthermore, the IPMM module may adjust a setting of at least one of the first power supply unit and the second power supply unit for optimization of a current sharing performance parameter of the multi-power supply system. In various embodiments, the setting may include a droop voltage value, a distribution impedance value, or a set voltage increment value of at least one of the first power supply unit and the second power supply unit.Type: ApplicationFiled: April 2, 2015Publication date: October 6, 2016Applicant: DELL PRODUCTS, L.P.Inventors: Yung Fa Chueh, Tsai-Fu Hung, Chung-Fu Lai, Shih-Chieh Wang
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Publication number: 20160172719Abstract: Desktop power use behavior may be detected while a portable information handling system or any other type of battery powered information handling system is operating on external power such as an AC adapter. The desktop power use behavior may be detected by monitoring one or more power usage parameters to detect usage characteristics that indicate a battery powered information handling system is being operated in a manner that is similar to operation of a desktop information handling system. Upon detection of desktop behavior, one or more processing devices of the information handling system may respond by taking one or more desktop use response actions.Type: ApplicationFiled: February 22, 2016Publication date: June 16, 2016Inventors: Chia-Fa Chang, Hua Chung, Ligong Wang, Yung Fa Chueh
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Patent number: 9300015Abstract: Desktop power use behavior may be detected while a portable information handling system or any other type of battery powered information handling, system is operating on external power such as an AC adapter. The desktop power use behavior may be detected by monitoring one or more power usage parameters to detect usage characteristics that indicate a battery powered information handling system is being operated in a manner that is similar to operation of a desktop information handling system. Upon detection of desktop behavior, one or more processing devices of the information handling system may respond by taking one or more desktop use response actions.Type: GrantFiled: May 4, 2010Date of Patent: March 29, 2016Assignee: Dell Products LPInventors: Chia-Fa Chang, Hua Chung, Ligong Wang, Yung Fa Chueh
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Patent number: 8938635Abstract: A method for managing an alternating current adaptor system is disclosed. A direct current voltage is received at a high impedance power delivery network from a primary side of an alternating current adaptor system. An isolated voltage is output from the high impedance power delivery network to components of a secondary side of the alternating current adaptor system. A transition in a power state identification of an information handling system associated with the alternating current adaptor system is detected. An output voltage level of the alternating current adaptor system is alternated in response to the transition in the power state identification of the information handling system.Type: GrantFiled: August 26, 2013Date of Patent: January 20, 2015Assignee: Dell Products, LPInventors: Yung Fa Chueh, Chih-Chieh Yin, Chin-Jui Liu, Hsien Tsung Lin
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Patent number: 8901898Abstract: A power supply system includes a first connector, a second connector, a first circuit for detecting a magnitude of a current drawn from an energy source by the power supply system and providing a related output related, and a second circuit for adjusting an output voltage supplied to the second connector based on output of the first circuit. The output voltage supplied to the second connector is at a first value when the output of the first circuit is below a first threshold. Further, the output voltage supplied to the second connector is at a second value, greater than said first value, when the output of the first circuit is above a second threshold. The output voltage supplied to the second connector is at a third value, between said first and second values, when the output of the first circuit is between the first and second thresholds.Type: GrantFiled: November 14, 2011Date of Patent: December 2, 2014Assignee: Dell Products L.P.Inventors: So-Yu Weng, Wen-Hung Huang, Yung Fa Chueh
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Publication number: 20140181549Abstract: An AC-to-DC power adapter provides DC power to an information handling system at a first higher DC voltage or a second lower DC voltage based upon a power state of the information handling system. For example, approximately 19 Volts DC power is provided if the information handling system is in an on state or if the information handling system is charging a battery. Approximately 13 Volts DC power is provided if the information handling system is in a reduced power state, such as an ACPI S3 state, with a battery having a substantially full charge.Type: ApplicationFiled: October 1, 2013Publication date: June 26, 2014Applicant: Dell Products L.P.Inventors: Yung Fa Chueh, Wen-Hung Huang, Ching Ti, So-Yu Weng
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Patent number: 8726052Abstract: A power supply system includes a battery and a power management system. The power management system is coupled to the battery and to an external power source that is operable to charge the battery using a first charge level. The power management system is operable to determine that a battery power level of the battery is greater than a first predetermined level that depends on a battery storage option and, in response, disable power from being supplied from the external power source such that power is supplied from the battery until the battery power level is below the first predetermined level. The power management system is also operable to determine that the battery power level of the battery is less than the first predetermined level and, in response, charge the battery with a second charge level that is less than the first charge level until the battery power level is above a second predetermined level that depends on the battery storage option.Type: GrantFiled: May 13, 2013Date of Patent: May 13, 2014Assignee: Dell Products, L.P.Inventors: Yung Fa Chueh, Chia-Fa Chang, Wen-Yung Chang
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User selectable charging modes for dynamically charging batteries for an information handling system
Patent number: 8674662Abstract: The disclosure provides a method for charging a battery in an information handling system. The method includes prompting a user to select from a plurality of charging modes for the battery, wherein the charging modes comprise a first mode, a second mode, or a third mode. The method further includes charging the battery in the first mode when the first mode is selected, wherein a charge voltage and a charge current are constant In the first mode, and charging the battery dynamically when the second mode or the third mode is selected, wherein the charge current changes dynamically based on a battery temperature.Type: GrantFiled: February 17, 2008Date of Patent: March 18, 2014Assignee: Dell Products L.P.Inventors: Yung Fa Chueh, Chia Fa Chang, Ching Ti, Kuang Chan Lee -
Publication number: 20130346784Abstract: A method for managing an alternating current adaptor system is disclosed. A direct current voltage is received at a high impedance power delivery network from a primary side of an alternating current adaptor system. An isolated voltage is output from the high impedance power delivery network to components of a secondary side of the alternating current adaptor system. A transition in a power state identification of an information handling system associated with the alternating current adaptor system is detected. An output voltage level of the alternating current adaptor system is alternated in response to the transition in the power state identification of the information handling system.Type: ApplicationFiled: August 26, 2013Publication date: December 26, 2013Applicant: Dell Products, LPInventors: Yung Fa Chueh, Chih-Chieh Yin, Chin-Jui Lin, Hsien Tsung Lin
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Patent number: 8555094Abstract: An AC-to-DC power adapter provides DC power to an information handling system at a first higher DC voltage or a second lower DC voltage based upon a power state of the information handling system. For example, approximately 19 Volts DC power is provided if the information handling system is in an on state or if the information handling system is charging a battery. Approximately 13 Volts DC power is provided if the information handling system is in a reduced power state, such as an ACPI S3 state, with a battery having a substantially full charge.Type: GrantFiled: October 16, 2008Date of Patent: October 8, 2013Assignee: Dell Products L.P.Inventors: Yung Fa Chueh, Wen-Hung Huang, Ching Ti, So-Yu Weng
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Publication number: 20130254564Abstract: A power supply system includes a battery and a power management system. The power management system is coupled to the battery and to an external power source that is operable to charge the battery using a first charge level. The power management system is operable to determine that a battery power level of the battery is greater than a first predetermined level that depends on a battery storage option and, in response, disable power from being supplied from the external power source such that power is supplied from the battery until the battery power level is below the first predetermined level. The power management system is also operable to determine that the battery power level of the battery is less than the first predetermined level and, in response, charge the battery with a second charge level that is less than the first charge level until the battery power level is above a second predetermined level that depends on the battery storage option.Type: ApplicationFiled: May 13, 2013Publication date: September 26, 2013Applicant: Dell Products L.P.Inventors: Yung Fa Chueh, Chia-Fa Chang, Wen-Yung Chang
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Patent number: 8543859Abstract: A method for managing an alternating current adaptor system is disclosed. A direct current voltage is received at a high impedance power delivery network from a primary side of an alternating current adaptor system. An isolated voltage is output from the high impedance power delivery network to components of a secondary side of the alternating current adaptor system. A transition in a power state identification of an information handling system associated with the alternating current adaptor system is detected. An output voltage level of the alternating current adaptor system is alternated in response to the transition in the power state identification of the information handling system.Type: GrantFiled: March 12, 2010Date of Patent: September 24, 2013Assignee: Dell Products, LPInventors: Yung Fa Chueh, Chih-Chieh Yin, Chin-Jui Liu, Hsien Tsung Lin
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Patent number: 8464079Abstract: A power supply system includes a battery and a power management system. The power management system is coupled to the battery and to an external power source that is operable to charge the battery using a first charge level. The power management system is operable to determine that a battery power level of the battery is greater than a first predetermined level that depends on a battery storage option and, in response, disable power from being supplied from the external power source such that power is supplied from the battery until the battery power level is below the first predetermined level. The power management system is also operable to determine that the battery power level of the battery is less than the first predetermined level and, in response, charge the battery with a second charge level that is less than the first charge level until the battery power level is above a second predetermined level that depends on the battery storage option.Type: GrantFiled: July 20, 2010Date of Patent: June 11, 2013Assignee: Dell Products L.P.Inventors: Yung Fa Chueh, Chia-Fa Chang, Wen-Yung Chang
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Publication number: 20130119952Abstract: A power supply system includes a first connector, a second connector, a first circuit for detecting a magnitude of a current drawn from an energy source by the power supply system and providing a related output related, and a second circuit for adjusting an output voltage supplied to the second connector based on output of the first circuit. The output voltage supplied to the second connector is at a first value when the output of the first circuit is below a first threshold. Further, the output voltage supplied to the second connector is at a second value, greater than said first value, when the output of the first circuit is above a second threshold. The output voltage supplied to the second connector is at a third value, between said first and second values, when the output of the first circuit is between the first and second thresholds.Type: ApplicationFiled: November 14, 2011Publication date: May 16, 2013Applicant: DELL PRODUCTS L.P.Inventors: So-Yu Weng, Wen-Hung Huang, Yung Fa Chueh
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Patent number: 8321696Abstract: A voltage regulator for use with switchable graphics processors. The voltage regulator includes a graphics processor mode selection control input. By providing the graphics processor mode selection control input it is possible to save pins for a parallel voltage identification (PVID) input (e.g., a 2-bit PVID input). The voltage regulator further includes a PVID input to allow the voltage regulator to switch a detection input to either a SVID type input or a PVID type input. The voltage regulator further includes voltage shifter for a PVID detection circuit.Type: GrantFiled: August 31, 2010Date of Patent: November 27, 2012Assignee: Dell Products L.P.Inventors: Yung Fa Chueh, Chin-Jui Jiu, So-Yu Weng, Wen-Hung Huang
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Patent number: 8154255Abstract: Systems and methods for waking up a battery system (e.g., battery pack such as a smart battery pack) installed in an information handling system from a shipping mode in response to the occurrence of one of at least two detected events. The first of these of these at least two events is detection of the battery system being removed and reinstalled into operational electrical contact with the information handling system, and the second of these at least two events is the activation of a user input device provided for the battery system.Type: GrantFiled: January 30, 2009Date of Patent: April 10, 2012Assignee: Dell Products L.P.Inventors: Ligong Wang, Yung Fa Chueh, Wen-Yung Chang, Chia-Fa Chang, Tun-Chieh Liang
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Patent number: 8140879Abstract: A power manager of an information handling system selectively commands a first or second source voltage from an AC-to-DC adapter based upon power consumption of the information handling system. A lower direct current voltage is provided during reduced power consumption so that DC-to-DC conversion in a power supply is more efficient. A higher direct current voltage is provided during increased power consumption so that the current required to provide the increased power remains below a threshold current, thus allowing the power system to have components that operate at lower current levels under high power consumption operations yet with increased efficiency during low power consumption operations.Type: GrantFiled: January 16, 2009Date of Patent: March 20, 2012Assignee: Dell Products L.P.Inventors: Yung Fa Chueh, Wen-Hung Huang, So-Yu Weng, Wen-Yung Chang