Patents by Inventor Chia Fa Chang
Chia Fa Chang 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: 20230029463Abstract: A connector in an information handling system includes a battery connector, a battery receptacle, and a signal pin structure contact. The battery connector includes a first set of power pins and a first set of signal pins. The battery receptacle includes a second set of power pins and a second set of signal pins. The first and second sets of power pins are coupled together when the battery connector is inserted within the battery receptacle. The signal pin structure contact transitions between an open position and a closed position. The signal pin structure contact couples the first and second sets of signal pins when the signal pin structure contact is in the closed position. A power down signal is provided to components of the information handling system when the signal pin structure contact is in the open position.Type: ApplicationFiled: July 27, 2021Publication date: February 2, 2023Inventors: Chia-Fa Chang, Chia-Liang Lin, Shao-Szu Ho, Chien-Hao Chiu, Hui-Huan Chien
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Publication number: 20230022911Abstract: An information handling system is configured to implement a battery management method and perform battery management operations including receiving information indicative of an operating system associated with the information handling system and determining a battery behavior environment (BBE) based, at least in part, on the operating system. A battery management unit (BMU) profile associated with the battery behavior environment may be selected, wherein the BMU profile indicates settings for one or more battery management parameters. The BMU is then configured in accordance with the BMU profile and the battery is managed in accordance with the BMU profile.Type: ApplicationFiled: July 23, 2021Publication date: January 26, 2023Applicant: Dell Products L.P.Inventors: Chia-Fa CHANG, Shao-Szu HO, Wen-Yung CHANG, Adolfo S. MONTERO, Chien-Hao CHIU
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Patent number: 11467644Abstract: An information handling system may include a processor; a battery to supply power to the information handling system, the battery comprising a voltage regulator to power a battery management unit (BMU) on the battery and set a system present pin of the BMU to a high voltage; the BMU to: detect a voltage indicator indicating a change in voltage state at a system present pin of the BMU that is externally connectable to a ground or voltage source at the information handling system, the voltage indicator indicative of an electrical coupling of the battery to the information handling system while the information handling system is in an off state; and register the voltage indicator within a battery register of the BMU; and a microcontroller, upon powering on of the information handling system, to read the voltage indicator at the battery register and determine that the battery has been coupled to the information handling system.Type: GrantFiled: May 1, 2020Date of Patent: October 11, 2022Assignee: Dell Products, LPInventors: Geroncio O. Tan, Chia-Liang Lin, Jui Chin Fang, Chia-Fa Chang, Timothy C. Shaw
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Publication number: 20210341983Abstract: An information handling system may include a processor; a battery to supply power to the information handling system, the battery comprising a voltage regulator to power a battery management unit (BMU) on the battery and set a system present pin of the BMU to a high voltage; the BMU to: detect a voltage indicator indicating a change in voltage state at a system present pin of the BMU that is externally connectable to a ground or voltage source at the information handling system, the voltage indicator indicative of an electrical coupling of the battery to the information handling system while the information handling system is in an off state; and register the voltage indicator within a battery register of the BMU; and a microcontroller, upon powering on of the information handling system, to read the voltage indicator at the battery register and determine that the battery has been coupled to the information handling system.Type: ApplicationFiled: May 1, 2020Publication date: November 4, 2021Applicant: Dell Products, LPInventors: Geroncio O. Tan, Chia-Liang Lin, Jui Chin Fang, Chia-Fa Chang, Timothy C. Shaw
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Patent number: 11099621Abstract: An information handling system real time clock (RTC)/CMOS circuit is powered from a battery that powers the information handling system. The battery power is supplied through a power management circuit that manages power constraints to the real time clock and that protects the battery from exceeding current and voltage thresholds. A protection integrated circuit selectively cuts off power supply from a power module to the RTC/CMOS circuit if predetermined conditions are detected. The protection circuit may also cutoff all power from battery with a permanent failure option or may itself directly supply power to the real time clock/CMOS circuit.Type: GrantFiled: July 16, 2019Date of Patent: August 24, 2021Assignee: Dell Products L.P.Inventors: Szu Shao Ho, Jui-Chin Fang, Chia Fa Chang, Chien-Hao Chiu, Chia Liang Lin
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Patent number: 11088407Abstract: In one or more embodiments, one or more systems, methods, and/or processes may determine that a timeout value has been reached; for each battery cell of multiple of battery cells: may determine if a temperature value associated with the battery cell meets or exceeds a threshold temperature value; if the temperature value associated with the battery cell does not meet or exceed the threshold temperature value, may permit the battery cell to be charged and discharged; if the temperature value associated with the battery cell meets or exceeds the threshold temperature value: may increment a temporary fail count associated with the battery cell; and may prevent at least one of charging and discharging the battery cell; may determine if temporary fail count exceeds a temporary fail count threshold; and if the temporary fail count does not exceed the temporary fail count threshold, may permit charging and discharging the battery cell.Type: GrantFiled: May 24, 2019Date of Patent: August 10, 2021Assignee: Dell Products L.P.Inventors: Jui-Chin Fang, Shao Szu Ho, Chia Fa Chang, Chien Hao Chiu, Chia Liang Lin
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Publication number: 20210018970Abstract: An information handling system real time clock (RTC)/CMOS circuit is powered from a battery that powers the information handling system. The battery power is supplied through a power management circuit that manages power constraints to the real time clock and that protects the battery from exceeding current and voltage thresholds. A protection integrated circuit selectively cuts off power supply from a power module to the RTC/CMOS circuit if predetermined conditions are detected. The protection circuit may also cutoff all power from battery with a permanent failure option or may itself directly supply power to the real time clock/CMOS circuit.Type: ApplicationFiled: July 16, 2019Publication date: January 21, 2021Applicant: Dell Products L.P.Inventors: Szu Shao Ho, Jui-Chin Fang, Chia Fa Chang, Chien-Hao Chiu, Chia Liang Lin
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Publication number: 20200373632Abstract: In one or more embodiments, one or more systems, methods, and/or processes may determine that a timeout value has been reached; for each battery cell of multiple of battery cells: may determine if a temperature value associated with the battery cell meets or exceeds a threshold temperature value; if the temperature value associated with the battery cell does not meet or exceed the threshold temperature value, may permit the battery cell to be charged and discharged; if the temperature value associated with the battery cell meets or exceeds the threshold temperature value: may increment a temporary fail count associated with the battery cell; and may prevent at least one of charging and discharging the battery cell; may determine if temporary fail count exceeds a temporary fail count threshold; and if the temporary fail count does not exceed the temporary fail count threshold, may permit charging and discharging the battery cell.Type: ApplicationFiled: May 24, 2019Publication date: November 26, 2020Inventors: Jui-Chin Fang, Shao Szu Ho, Chia Fa Chang, Chien Hao Chiu, Chia Liang Lin
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Patent number: 10794958Abstract: In one or more embodiments, an information handling system may include an embedded controller, communicatively coupled to a battery system that is configured to power the information handling system. The embedded controller may be configured to: receive a cycle count from the battery system; determine that the cycle count is above a threshold; query the battery system for an expected margin of error, in response to determining that the cycle count is above the threshold; receive the expected margin of error from the battery system; determine that the expected margin of error is within a range; and in response to determining that the expected margin of error is within the range, compute a condition metric of the battery system based on a prediction of a capacity of the battery system and a design capacity of the battery system and store the condition metric of the battery system.Type: GrantFiled: July 3, 2017Date of Patent: October 6, 2020Assignee: Dell Products L.P.Inventors: Chia-Fa Chang, Chia Liang Lin, Jui Chin Fang, Shao Szu Ho, No Hua Chuang
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Patent number: 10491014Abstract: A computer-implemented method extends the time until the battery reaches an over-discharged state of an information handling system during storage. The method comprises determining if a first battery parameter is outside an associated first battery parameter specification. When the first battery parameter is outside the associated first battery parameter specification, a power management controller isolates the battery by turning off a charge/discharge field effect transistor. The method also includes determining if the first battery parameter is outside an associated second battery parameter specification. In response to the first battery parameter being outside the associated second battery parameter specification, the power management controller is triggered to enter a minimum power state to further reduce power consumption from the battery.Type: GrantFiled: July 15, 2014Date of Patent: November 26, 2019Assignee: Dell Products, L.P.Inventors: Chia-Fa Chang, Wen-Yung Chang, Tun-Chieh Liang, Richard C. Thompson
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Publication number: 20190004119Abstract: In one or more embodiments, an information handling system may include an embedded controller, communicatively coupled to a battery system that is configured to power the information handling system. The embedded controller may be configured to: receive a cycle count from the battery system; determine that the cycle count is above a threshold; query the battery system for an expected margin of error, in response to determining that the cycle count is above the threshold; receive the expected margin of error from the battery system; determine that the expected margin of error is within a range; and in response to determining that the expected margin of error is within the range, compute a condition metric of the battery system based on a prediction of a capacity of the battery system and a design capacity of the battery system and store the condition metric of the battery system.Type: ApplicationFiled: July 3, 2017Publication date: January 3, 2019Inventors: Chia-Fa Chang, Chia Liang Lin, Jui Chin Fang, Shao Szu Ho, No Hua Chuang
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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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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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Publication number: 20160020624Abstract: A computer-implemented method extends the time until the battery reaches an over-discharged state of an information handling system during storage. The method comprises determining if a first battery parameter is outside an associated first battery parameter specification. When the first battery parameter is outside the associated first battery parameter specification, a power management controller isolates the battery by turning off a charge/discharge field effect transistor. The method also includes determining if the first battery parameter is outside an associated second battery parameter specification. In response to the first battery parameter being outside the associated second battery parameter specification, the power management controller is triggered to enter a minimum power state to further reduce power consumption from the battery.Type: ApplicationFiled: July 15, 2014Publication date: January 21, 2016Applicant: DELL PRODUCTS, L.P.Inventors: CHIA-FA CHANG, WEN-YUNG CHANG, TUN-CHIEH LIANG, RICHARD C. THOMPSON
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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: 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: 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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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