Patents by Inventor Chuan-Jung Wang
Chuan-Jung Wang 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: 11949270Abstract: A battery module for monitoring and suppressing battery swelling and interacting with a charging device includes a battery cell disposed in a nonconductive housing, a conductive label affixed to the nonconductive housing, a switch, and a controller. The battery cell is charged via a supply voltage from a charging device. The switch is coupled between the battery cell and the conductive label. The controller detects a resistance variation value ?R of the conductive label as result of swelling of the nonconductive housing, and generates a corresponding control voltage. As the resistance of the conductive label increases, the supply voltage may be adjusted downward according to the control voltage. If the resistance variation value ?R conductive label is greater than or equal to a predetermined threshold, the controller closes the switch, and the battery cell may then fully discharge through the conductive label.Type: GrantFiled: October 18, 2021Date of Patent: April 2, 2024Assignee: ACER INCORPORATEDInventors: Shuo-Jung Chou, Chuan-Jung Wang, Chih-Chiang Chen
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Publication number: 20230261508Abstract: A power supply including a first conversion circuit, a second conversion circuit, a first output capacitor, a second output capacitor, a first discharge circuit, and a second discharge circuit is provided. The first conversion circuit converts a first alternating current (AC) power to a first direct current (DC) power. The second conversion circuit converts a second AC power to a second DC power. The first output capacitor is configured to store the first DC power. The second output capacitor is configured to store the second DC power. The first discharge circuit provides a first discharge path to discharge the first output capacitor in response to the first DC power being greater than the second DC power. The second discharge circuit provides a second discharge path to discharge the second output capacitor in response to the second DC power being greater than the first DC power.Type: ApplicationFiled: November 9, 2022Publication date: August 17, 2023Inventors: Tzu-Tseng CHAN, Chih-Chiang CHEN, Chuan-Jung WANG
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Publication number: 20230179009Abstract: A charging method with hysteresis includes the steps of: performing a pre-determination process to check whether the battery temperature of a battery cell is higher than or equal to a predetermined temperature; if the battery temperature is higher than or equal to the predetermined temperature, enabling a hysteresis mechanism; Upon the hysteresis mechanism, initially charging the battery cell with a small charging current; performing a first determination process to check whether the battery temperature decreases to a first threshold temperature; if the battery temperature decreases to the first threshold temperature, charging the battery cell with a large charging current; performing a second determination process to check whether the battery temperature increases to a second threshold temperature; and if the battery temperature increases to the second threshold temperature, charging the battery cell with the small charging current.Type: ApplicationFiled: March 21, 2022Publication date: June 8, 2023Inventors: Shuo-Jung CHOU, Chuan-Jung WANG, Chih-Chiang CHEN
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Publication number: 20230152870Abstract: An electronic apparatus and a load adjusting method thereof are provided. The method includes the following steps. Powering of an external power supply is detected. A self-power consumption time of the battery from a full capacity to a preset capacity is calculated and recorded when the powering of the external power supply is detected. A first average value of multiple self-power consumption times recorded within a preset period from a current time is calculated, and the first average value is compared with a second average value of the self-power consumption times of a previous preset period of the preset period. A value of a power limit for controlling the electronic apparatus to enter a load adjusting state is adjusted according to a comparison result.Type: ApplicationFiled: July 18, 2022Publication date: May 18, 2023Applicant: Acer IncorporatedInventors: Shuo-Jung Chou, Chuan-Jung Wang, Chih-Chiang Chen
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Publication number: 20230133557Abstract: A power supply device is provided. The power supply device includes a housing, a power converter, a controller, multiple humidity sensitive capacitors, and a feedback circuit. The housing has multiple joints. The controller controls the power converter to provide an output voltage. The humidity sensitive capacitors are respectively configured in the housing and adjacent to a corresponding joint of the joints. The humidity sensitive capacitors jointly provide a sensing capacitance value. The feedback circuit changes a gain value and a compensation bandwidth of the output voltage in response to the change of the sensing capacitance value. When the humidity of at least one of the joints increases, the sensing capacitance value is reduced, so that the gain value and the compensation bandwidth are reduced.Type: ApplicationFiled: October 3, 2022Publication date: May 4, 2023Applicant: Acer IncorporatedInventors: Tzu-Tseng Chan, Chih-Chiang Chen, Chuan-Jung Wang
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Publication number: 20230032997Abstract: A mobile device for avoiding accidental shutdown includes a battery cell, a controller, and a jack element. The controller defines a first delay time and a second delay time. The first delay time is relative to the ODCP (Over Discharge Current Protection) of the battery cell. The second delay time is relative to the OVP (Over Voltage Protection) of the battery cell. When a plug of a power supply device is unplugged from the jack element, the controller detects an SOH (State of Health) of the battery cell. The controller compares the SOH with a first threshold ratio and a second threshold ratio. Then, the controller extends the first delay time and the second delay time according to a first multiplier, a second multiplier, or a third multiplier.Type: ApplicationFiled: September 2, 2021Publication date: February 2, 2023Inventors: Shuo-Jung CHOU, Chuan-Jung WANG, Chih-Chiang CHEN
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Patent number: 11489210Abstract: An electronic device for suppressing battery swelling includes a first battery cell, a first conductive label, a second conductive label, a third conductive label, and a BMU (Battery Management Unit). The first battery cell includes a first nonconductive housing. The first conductive label, the second conductive label, and the third conductive label are disposed on the first nonconductive housing. The BMU outputs a charging voltage to the first battery cell. The BMU determines the voltage level of the charging voltage by detecting the states of the first conductive label, the second conductive label, and the third conductive label.Type: GrantFiled: April 29, 2021Date of Patent: November 1, 2022Assignee: ACER INCORPORATEDInventors: Shuo-Jung Chou, Chuan-Jung Wang, Chih-Chiang Chen
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Publication number: 20220337077Abstract: A battery module for monitoring and suppressing battery swelling and interacting with a charging device includes a battery cell disposed in a nonconductive housing, a conductive label affixed to the nonconductive housing, a switch, and a controller. The battery cell is charged via a supply voltage from a charging device. The switch is coupled between the battery cell and the conductive label. The controller detects a resistance variation value ?R of the conductive label as result of swelling of the nonconductive housing, and generates a corresponding control voltage. As the resistance of the conductive label increases, the supply voltage may be adjusted downward according to the control voltage. If the resistance variation value ?R conductive label is greater than or equal to a predetermined threshold, the controller closes the switch, and the battery cell may then fully discharge through the conductive label.Type: ApplicationFiled: October 18, 2021Publication date: October 20, 2022Inventors: Shuo-Jung CHOU, Chuan-Jung WANG, Chih-Chiang CHEN
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Publication number: 20220271351Abstract: An electronic device for suppressing battery swelling includes a first battery cell, a first conductive label, a second conductive label, a third conductive label, and a BMU (Battery Management Unit). The first battery cell includes a first nonconductive housing. The first conductive label, the second conductive label, and the third conductive label are disposed on the first nonconductive housing. The BMU outputs a charging voltage to the first battery cell. The BMU determines the voltage level of the charging voltage by detecting the states of the first conductive label, the second conductive label, and the third conductive label.Type: ApplicationFiled: April 29, 2021Publication date: August 25, 2022Inventors: Shuo-Jung CHOU, Chuan-Jung WANG, Chih-Chiang CHEN
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Patent number: 11196270Abstract: A charging method is provided for charging a plurality of batteries of a battery module. The charging method includes: obtaining a maximum voltage value and a minimum voltage value of a plurality of battery voltage values of the batteries according to a relative state of charge of the battery module during a charging process; obtaining a difference value between the maximum voltage value and the minimum voltage value; and adjusting a charging voltage value for charging the batteries and a taper voltage value for determining whether the batteries reach a charging saturation state according to the difference value.Type: GrantFiled: November 12, 2019Date of Patent: December 7, 2021Assignee: Acer IncorporatedInventors: Shuo-Jung Chou, Chuan-Jung Wang
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Publication number: 20210057922Abstract: A charging method is provided for charging a plurality of batteries of a battery module. The charging method includes: obtaining a maximum voltage value and a minimum voltage value of a plurality of battery voltage values of the batteries according to a relative state of charge of the battery module during a charging process; obtaining a difference value between the maximum voltage value and the minimum voltage value; and adjusting a charging voltage value for charging the batteries and a taper voltage value for determining whether the batteries reach a charging saturation state according to the difference value.Type: ApplicationFiled: November 12, 2019Publication date: February 25, 2021Applicant: Acer IncorporatedInventors: Shuo-Jung Chou, Chuan-Jung Wang
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Publication number: 20200117257Abstract: A power control device including a main battery, an auxiliary battery, a charging circuit, and a control circuit, for supplying power to a load is proposed. The main battery supplies power to the load. A volume, a capacity, and an output voltage of the auxiliary battery are all less than those of the main battery. The charging circuit receives a power input signal from a power supply network via a power adapter. The charging circuit generates a protection signal when changing from a first state that receives the power input signal to a second state that does not receive the power input signal. The control circuit controls the auxiliary battery to supply power to the load via a boosting circuit when receiving the protection signal, where a second output voltage outputted by the auxiliary battery is greater than or equal to a first output voltage outputted by the main battery.Type: ApplicationFiled: July 1, 2019Publication date: April 16, 2020Applicant: Acer IncorporatedInventors: Shuo-Jung Chou, Chuan-Jung Wang, Chih-Chiang Chen
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Patent number: 10483782Abstract: A battery control method and a battery control apparatus are provided. The battery control method includes the following steps. Whether a charging voltage value of a battery is greater than a voltage threshold is determined. When the charging voltage value is greater than the voltage threshold, a battery temperature of the battery is obtained. When the battery temperature is less than a first temperature, a time parameter is accumulated according to a first accumulating rate. When the time parameter reaches a time threshold, the charging voltage value of the battery is reduced.Type: GrantFiled: September 18, 2017Date of Patent: November 19, 2019Assignee: ACER INCORPORATEDInventors: Shuo-Jung Chou, Chuan-Jung Wang
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Publication number: 20180316208Abstract: A battery control method and a battery control apparatus are provided. The battery control method includes the following steps. Whether a charging voltage value of a battery is greater than a voltage threshold is determined. When the charging voltage value is greater than the voltage threshold, a battery temperature of the battery is obtained. When the battery temperature is less than a first temperature, a time parameter is accumulated according to a first accumulating rate. When the time parameter reaches a time threshold, the charging voltage value of the battery is reduced.Type: ApplicationFiled: September 18, 2017Publication date: November 1, 2018Applicant: Acer IncorporatedInventors: Shuo-Jung CHOU, Chuan-Jung WANG
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Publication number: 20100244772Abstract: A battery module adapted for supplying power to an electric equipment includes an energy battery device, a power battery device and a charging device. The energy battery device includes a plurality of parallel conductive plates and energy battery groups each connected between the neighboring two conductive plates and including a plurality of parallel-connected energy cells. The power battery device is adapted to be connected with the supplied electric equipment and includes a power battery group formed by a series-connection of a plurality of power cells. The charging device has two input terminals connecting the energy battery device therebetween and two output terminals connecting the power battery device therebetween so that the power battery group can be charged by the energy battery device, the two output terminals connected with the electric equipment for supplying power to the electric equipment by the energy cells.Type: ApplicationFiled: March 30, 2009Publication date: September 30, 2010Inventors: Chia-Han Chan, Nan-Sheng Chang, Chieh-Hung Yang, Chuan-Jung Wang
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Patent number: 7745044Abstract: A battery module includes a battery case, at least a battery, and at least a thermal pad. The battery case includes a top cover and a bottom cover. The battery is received in the bottom cover of the battery case. The thermal pad is placed in a chamber of the batteries and pressed by the top cover of the battery case after the top cover and the bottom cover covering together. Therefore, the thermal energy created by the battery module can be easily transmitted to the outside of the battery module case along the thermal pad.Type: GrantFiled: January 31, 2007Date of Patent: June 29, 2010Assignee: Cheng Uei Precision Industry Co., Ltd.Inventors: Hsien-Hung Chen, Nan-Sheng Chang, Chuan-Jung Wang
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Publication number: 20080182165Abstract: A battery module includes a battery case, at least a battery, and at least a thermal pad. The battery case includes a top cover and a bottom cover. The battery is received in the bottom cover of the battery case. The thermal pad is placed in a chamber of the batteries and pressed by the top cover of the battery case after the top cover and the bottom cover covering together. Therefore, the thermal energy created by the battery module can be easily transmitted to the outside of the battery module case along the thermal pad.Type: ApplicationFiled: January 31, 2007Publication date: July 31, 2008Applicant: CHENG UEI PRECISION INDUSTRY CO., LTD.Inventors: Hsien-Hung Chen, Nan-Sheng Chang, Chuan-Jung Wang
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Patent number: 5480814Abstract: A method for forming a metal contact in a self aligned contact region over a impurity region in a substrate which comprises forming a doped polysilicon layer over the device surface except in a contact area. A thin polysilicon barrier layer and a metal layer, preferably tungsten, are then formed over the polysilicon layer and the contact area. The resulting metal contact has superior step coverage, lower resistivity, and maintains the shallow junction depth of buried impurity regions.Type: GrantFiled: December 27, 1994Date of Patent: January 2, 1996Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Shou-Gwo Wuu, Mong-Song Liang, Chuan-Jung Wang, Chung-Hui Su