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公开(公告)号：US20240128775A1
公开(公告)日：2024-04-18
申请号：US18246248
申请日：2022-08-26
发明人： Yang Mao , Changying Zhang , Yupeng Qiu , Haibin Zhou , Tieli Zhang
IPC分类号： H02J7/00
CPC分类号： H02J7/0063 , H02J7/0019 , H02J7/0031 , H02J7/00714 , H02J7/007182
摘要： A charging/discharging circuit and an electronic device. A first end of a first branch is connected to a voltage supply end, a second end thereof is connected to a first battery, and a voltage provided by the voltage supply end charges the first battery through the first branch; a first end of a second branch is connected to the voltage supply end, a second end thereof is connected to a second battery, and the voltage provided by the voltage supply end charges the second battery through the second branch; the second branch includes a first control circuit that is configured to adjust impedance of the second branch; and a processing module is configured to obtain a first current of the first branch and a second current of the second branch, and indicate, based on the first and second currents, the first control circuit to adjust impedance of the second branch.
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公开(公告)号：US11894694B2
公开(公告)日：2024-02-06
申请号：US17776358
申请日：2021-03-19
发明人： Haibin Zhou , Zhongyong He , Chen Zhu , Yupeng Qiu
CPC分类号： H02J50/402 , H02J50/12 , H02J50/70 , H02J50/05 , H02J50/20
摘要： A wireless charging device (20) and a to-be-charged device (10) are provided, to support two or more wireless charging technologies, so as to optimize a circuit design and improve power transmission efficiency. The to-be-charged device (10) includes: a first receiving coil, configured to receive an electromagnetic signal based on a first wireless charging technology, and convert the electromagnetic signal into an alternating current signal; and a second receiving coil, configured to receive an electromagnetic signal based on a second wireless charging technology, and convert the electromagnetic signal into an alternating current signal, where the first wireless charging technology and the second wireless charging technology support different resonance frequency ranges.
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公开(公告)号：US20240204539A1
公开(公告)日：2024-06-20
申请号：US17910647
申请日：2022-04-20
发明人： Yupeng Qiu , Haibin Zhou , Zhongyong He , Peng Li
IPC分类号： H02J7/00
CPC分类号： H02J7/0019 , H02J7/0048 , H02J7/007182
摘要： This application discloses a charging/discharging circuit and an electronic device. The first switch and the second switch are separately connected to the processing module, a first port of the first charging circuit, and the battery pack. The first charging circuit is configured to output a voltage by using the first port. The voltage passes through the first switch, the second switch, and the impedance for charging the battery pack. The processing module is configured to obtain a voltage and/or a current of a charging line of each battery in the battery pack, and control, based on the voltage and/or the current, the first switch and the second switch to be turned on or turned off, so that batteries in the battery pack are charged equally, thereby preventing a case that one battery is fully charged with power, but the other battery is not fully charged.
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公开(公告)号：US11337003B2
公开(公告)日：2022-05-17
申请号：US17281175
申请日：2019-09-24
发明人： Ting Huang , Yupeng Qiu , Yingqun Feng
摘要： Embodiments of this application provide an audio playback circuit and a terminal. The audio playback circuit includes: a first current path, configured to shunt a current output by a left-channel circuit to adjust a second voltage fed back to a first end of a right-channel headset when the left-channel circuit outputs a left-channel audio signal, where when the left-channel circuit outputs the left-channel audio signal and a right-channel circuit does not output a right-channel audio signal, the second voltage is equal to a voltage at a second end of a right-channel headset; and a second current path, configured to shunt a current output by the right-channel circuit to adjust a first voltage fed back to a first end of a left-channel headset when the right-channel circuit outputs the right-channel audio signal. The audio playback circuit in the embodiments of this application can improve isolation between a left channel and a right channel.
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公开(公告)号：US11183863B2
公开(公告)日：2021-11-23
申请号：US16757105
申请日：2018-04-13
发明人： Haibin Zhou , Yupeng Qiu , Zhi Chang , Tieli Zhang
摘要： A charging apparatus includes a sampling module, a control module, a clamping module, and a switched capacitor module. The sampling module is configured to connect to a battery, collect current status information of the battery, and provide collected status information for the control module, the control module is configured to adjust output energy of the clamping module based on the status information, and provide a drive signal for the switched capacitor module, the clamping module is configured to connect to a power supply, receive power supply energy provided by the power supply, process the power supply energy into output energy, and provide the output energy for the switched capacitor module, and the switched capacitor module is configured to provide charging energy for the battery based on the drive signal provided by the control module and the output energy provided by the clamping module.
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公开(公告)号：US20240250538A1
公开(公告)日：2024-07-25
申请号：US18566490
申请日：2023-04-21
发明人： Lei Cao , Chen Zhu , Yupeng Qiu
CPC分类号： H02J7/00047 , G01R31/3644 , G01R31/396 , H01M10/425 , H01M10/441 , H01M10/48 , H02J7/00032 , H02J7/0019 , H02J7/0024 , H02J7/0047 , H02J7/0063 , H02J7/00714 , H02J7/342 , H01M2010/4278 , H02J2207/20
摘要： This application discloses a multi-battery power supply, a charging/discharging method, and an electronic device. A power supply circuit includes a first circuit, a second circuit, a first switch, a second switch, a first battery, and a second battery. When the first switch is off, a first controlled terminal of the second switch is electrically connected to a second controlled terminal of the second switch, and when the first circuit is on, the first circuit and the second circuit are configured to supply power to two batteries. When the first switch is on, the first controlled terminal of the second switch is electrically connected to the third controlled terminal of the second switch, and when the first circuit is off, both the batteries supply power to the outside through the second circuit.
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公开(公告)号：US11949272B2
公开(公告)日：2024-04-02
申请号：US17259045
申请日：2018-07-27
发明人： Yupeng Qiu , Ruiliang Li , Haibin Zhou , Fenwei Zhang
IPC分类号： H02J7/00
CPC分类号： H02J7/007182 , H02J7/007194 , H02J2207/10 , H02J2310/22
摘要： A power supply circuit of a terminal device includes a voltage boost circuit, a battery chip, and a controller. The battery chip is configured to provide an output voltage of a battery for a load. An input end of the voltage boost circuit is connected to a positive electrode of the battery, and an output end of the voltage boost circuit is connected to the load. The output voltage of the battery is boosted when the temperature is relatively low or the output voltage of the battery is relatively low. In addition, when a relatively high pulse current occurs on the terminal and the output voltage of the voltage boost circuit is stepped down, both the battery chip and the voltage boost circuit is controlled to supply power to the load.
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公开(公告)号：US11947481B2
公开(公告)日：2024-04-02
申请号：US17261961
申请日：2018-07-24
发明人： Jianli Chen , Chenlong Li , Yupeng Qiu
CPC分类号： G06F13/385 , G06F13/4022 , G06F13/4081 , G06F13/4282 , G06F2213/0042
摘要： The application discloses a terminal and a Type C interface anti-corrosion method. In the terminal, a processor is separately connected to a motion sensor and an interface chip. The interface chip is separately connected to the processor and a CC pin in a first Type C interface. The motion sensor is configured to monitor a motion status of the terminal, and the processor is configured to control, according to the motion status of the terminal, the interface chip to configure the CC pin of the first Type C interface to be in a low-level mode when it is determined that the motion status of the terminal changes from a moving state to a static state. When the motion status of the terminal changes from the moving state to the static state, the change in the motion status of the terminal is that the terminal is disconnected from an external device.
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公开(公告)号：US12088204B2
公开(公告)日：2024-09-10
申请号：US17777817
申请日：2021-04-28
发明人： Ting Huang , Chen Zhu , Yingqun Feng , Yupeng Qiu
IPC分类号： H02M3/158
CPC分类号： H02M3/1582
摘要： A power supply circuit and a control method for a control circuit, where the control circuit is coupled to the voltage buck-boost adjustment circuit. The control circuit is configured to: when a voltage value of a first enable signal of the voltage buck-boost adjustment circuit is greater than or equal to a first predetermined value, control the output voltage of the voltage buck-boost adjustment circuit to be a first output voltage, and is further configured to: when the voltage value of the first enable signal of the voltage buck-boost adjustment circuit is less than or equal to a second predetermined value, control the output voltage of the voltage buck-boost adjustment circuit to be a second output voltage or a zero voltage.
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公开(公告)号：US20220416662A1
公开(公告)日：2022-12-29
申请号：US17777817
申请日：2021-04-28
发明人： Ting Huang , Chen Zhu , Yingqun Feng , Yupeng Qiu
IPC分类号： H02M3/158
摘要： This application provides a power supply circuit and a control method for a control circuit, where the power supply circuit includes a voltage buck-boost adjustment circuit and a control circuit, and the control circuit is coupled to the voltage buck-boost adjustment circuit. The control circuit is configured to: when a voltage value of a first enable signal of the voltage buck-boost adjustment circuit is greater than or equal to a first predetermined value, control the output voltage of the voltage buck-boost adjustment circuit to be a first output voltage, and is further configured to: when the voltage value of the first enable signal of the voltage buck-boost adjustment circuit is less than or equal to a second predetermined value, control the output voltage of the voltage buck-boost adjustment circuit to be a second output voltage or a zero voltage, where the first predetermined value is greater than the second predetermined value, and the first output voltage is higher than the second output voltage. According to the implementations of this application, when no additional boost circuit is needed, an input voltage required for operation may be provided for a module that needs to be driven by a high voltage, so that a circuit area occupied by the boost circuit may be released for an electronic device.
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