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公开(公告)号：US10312701B2
公开(公告)日：2019-06-04
申请号：US15003779
申请日：2016-01-21
发明人： Ching-Han Li , Hsiang-Jui Hung , Wei-Chen Tu , Ming-Ting Tsai
IPC分类号： H02J7/00
摘要： A charging method of a portable electronic device, adapted to charge a battery module of a portable electronic device, the charging method comprising detecting a battery voltage and a charging current of the battery module; determining whether the portable electronic device operates at a constant current mode according to the battery voltage; entering an over voltage protection charging loop while the portable electronic device operates at the constant current mode and allows the battery module to be charged up at a maximum charging voltage, and leaving the over voltage protection charging loop while the charging current is smaller than a predetermined current, wherein the maximum charging voltage is gradually decreased according to a comparison result between the battery voltage and an overcharging protection voltage; and setting the maximum charging voltage as a full charge voltage while leaving the over voltage protection charging loop.
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公开(公告)号：US09866229B2
公开(公告)日：2018-01-09
申请号：US15226908
申请日：2016-08-02
发明人： Yi-Ming Huang , Wei-Chen Tu , Ming-Ting Tsai , Hsiang-Jue Hung , Shang-Yu Hung , Hung-Po Chen , Tzu-Nan Cheng
摘要： A power adapter includes a power converting circuit, a connecting terminal and a controller. The power converting circuit is used to convert an input voltage to an output voltage according to a control signal. The connecting terminal is connected to an electronic device to allow the output voltage outputted by the power converting circuit to charge the electronic device. The controller receives an identifying command from the electronic device when the electronic device is connected to the connecting terminal, and outputs the control signal according to the identifying command.
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公开(公告)号：US09787121B2
公开(公告)日：2017-10-10
申请号：US14791256
申请日：2015-07-03
发明人： Wei-Chen Tu , Ming-Ting Tsai , Yi-Ming Huang , Hsiang-Jui Hung
CPC分类号： H02J7/007 , G06F1/26 , G06F1/263 , H02J1/06 , H02J7/0021 , H02J7/0052 , H02J7/34 , H02J2007/0062
摘要： A power supply control method and a portable electronic device using the same are provided. The power supply control method includes following steps: detecting an input voltage and an input current at a power input terminal of the portable electronic device; setting a plurality of detection loads sequentially to control a power adaptor to provide a detection current as the input current for the portable electronic device respectively; calculating an equivalent input impedance of the power input terminal according to the detection current and the corresponding input voltage; calculating an actual output voltage of the power adaptor according to the equivalent input impedance, the input voltage, and the input current; and setting a work load according to the actual output voltage to control the power adaptor to provide a work current as the input current for the portable electronic device.
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公开(公告)号：US20160218542A1
公开(公告)日：2016-07-28
申请号：US14751166
申请日：2015-06-26
发明人： Ching-Han Li , Hsiang-Jui Hung , Wei-Chen Tu , Ming-Ting Tsai
IPC分类号： H02J7/00
CPC分类号： H02J7/0029 , H02J7/007 , H02J7/0083 , H02J2007/0037
摘要： A charging method and a portable electronic device using the same are provided. The charging method includes following steps: detecting a battery voltage and a charging current of a battery module; determining whether the portable electronic device operates at a constant voltage (CV) charging mode; executing an impedance calculation at the CV charging mode to obtain a first battery voltage corresponding to a first predetermined current and a second battery voltage corresponding to a second predetermined current; calculating a compensation impedance according to the predetermined current and the battery voltages; setting a maximum charging voltage according to the compensation impedance and executing a CV charging to the battery module accordingly; determining whether a current variation of the charging current is larger than a threshold value; re-executing the impedance calculation; updating a setting value of the maximum charging voltage when the current variation is larger than the threshold value.
摘要翻译： 提供一种充电方法和使用该方法的便携式电子装置。 充电方法包括以下步骤：检测电池模块的电池电压和充电电流; 确定便携式电子设备是否在恒定电压（CV）充电模式下操作; 在CV充电模式下执行阻抗计算以获得对应于第一预定电流的第一电池电压和对应于第二预定电流的第二电池电压; 根据预定电流和电池电压计算补偿阻抗; 根据补偿阻抗设置最大充电电压，并相应地对电池模块执行CV充电; 确定充电电流的当前变化是否大于阈值; 重新执行阻抗计算; 当电流变化大于阈值时更新最大充电电压的设定值。
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公开(公告)号：US20230336081A1
公开(公告)日：2023-10-19
申请号：US17984221
申请日：2022-11-09
发明人： Wei Kao , Ming-Ting Tsai , Hsiang-Jui Hung , Hsi-Ho Hsu , Chen-Hao Yu , Chun-San Lin , Wei-Gen Chung
CPC分类号： H02M3/1586 , H02M1/14 , H02M1/088
摘要： A power supply phase doubling system includes a pulse width modulation (PWM) controller and first and second phase doubling chips. The PWM controller outputs a PWM signal. The first phase doubling chip is operated at a power supply voltage and has a first PWM output pin to generate a first control signal and a second control signal according to the PWM signal, and generates a first output signal according to the first control signal. The second phase doubling chip is operated at the power supply voltage, has a second PWM output pin, and is configured to generate a second output signal according to the second control signal. The first and second phase doubling chips are respectively switched between a master mode and a slave mode according to a voltage level of the first PWM output pin and a voltage level of the second PWM output pin.
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公开(公告)号：US09780599B2
公开(公告)日：2017-10-03
申请号：US14859372
申请日：2015-09-21
发明人： Yi-Ming Huang , Wei-Chen Tu , Ming-Ting Tsai , Hsiang-Jue Hung
摘要： An electronic device includes an energy collection circuit, a rectifier circuit, and a control unit. The energy collection circuit receives an energy signal transmitted via transmission frequency from a wireless charger base. The rectifier circuit generates a drive voltage according to the energy signal. The control unit compares the drive voltage with a reference voltage, and compares the transmission frequency with a reference frequency. When the drive voltage is less than or equals to the reference voltage, or when the transmission frequency is lower than or equals to the reference frequency, the control unit outputs position deviation information. The electronic device detects the efficiency of the wireless charging, and reminds the user whether the position of the electronic device needs to be adjusted, which ensures an efficient charging.
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公开(公告)号：US09716404B2
公开(公告)日：2017-07-25
申请号：US14576185
申请日：2014-12-18
发明人： Wei-Chen Tu , Ming-Ting Tsai , Yii-Lin Wu , Hsiang-Jue Hung
IPC分类号： H02J7/04
摘要： A charging circuit and a charging method of a battery are disclosed. The charging circuit provides a charging current to charge the battery. The charging circuit includes a charging control module, a current detecting module and a compensation module. The charging control module provides a charging voltage. The current detecting module detects the charging current, and generates a detecting voltage according to the charging current. The compensation module detects the charging voltage, and provides a feedback voltage to the charging control module according to the detecting voltage and the charging voltage.
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公开(公告)号：US09653998B2
公开(公告)日：2017-05-16
申请号：US14714344
申请日：2015-05-18
发明人： Yue-Han Wu , Yii-Lin Wu , Ming-Ting Tsai , Kuan-Yi Lee
CPC分类号： H02M3/158 , H02M1/32 , H02M2003/1566
摘要： A boost converter and a power control method thereof. The boost converter includes an inductor, a first switch unit, a second switch unit, a discharging loop and a detecting circuit. The inductor is electrically connected to a power input end. The first switch unit is electrically connected between the inductor and ground. The second switch unit is electrically connected between the inductor and an output end. The discharging loop is connected with the inductor in parallel and includes a third switch unit. The detecting circuit is used to detect a discharging value of the inductor. When the discharging value exceeds a threshold value, the third switch unit is turned on, and the inductor releases energy via the discharging loop.
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公开(公告)号：US09652012B2
公开(公告)日：2017-05-16
申请号：US14684420
申请日：2015-04-12
发明人： Ming-Ting Tsai , Ching-Han Li , Hsiang-Jui Hung
摘要： An electronic device and a power supplying method thereof are provided. An electronic device includes a host and a power supply. The host receives a power via a power supply path. The power is transmitted to the host via the power supply path. The power supply detects state changes of a plurality of supply current values at the power supply path obtained by the host from the power supply at a plurality of time intervals, so as to generate a determining result. A voltage value of the power is changed according to the determining result.
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公开(公告)号：US20240061018A1
公开(公告)日：2024-02-22
申请号：US17969697
申请日：2022-10-20
发明人： Wei-Gen Chung , Ming-Ting Tsai , Hsi-Ho Hsu , Chun-San Lin , Wei Kao , Chen-Hao Yu , Hsiang-Jui Hung
IPC分类号： G01R15/04 , H03K17/687 , H03F3/45 , H02H3/20
CPC分类号： G01R15/04 , H03K17/687 , H03F3/45071 , H02H3/20
摘要： A voltage detection device is provided. The voltage detection device includes a first voltage divider circuit, a comparison circuit, and a second voltage divider circuit. The first voltage divider circuit is configured to receive an input voltage and output a comparison voltage according to the input voltage. The comparison circuit is configured to receive the comparison voltage to compare the comparison voltage with a reference voltage and determine whether to change a trigger signal according to a comparison result. The second voltage divider circuit is configured to receive the input voltage. When the input voltage is greater than or equal to a predetermined voltage value, the second voltage divider circuit and the first voltage dividing circuit form a parallel structure to pull down the comparison voltage.
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