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公开(公告)号：US11381091B2
公开(公告)日：2022-07-05
申请号：US17323163
申请日：2021-05-18
发明人： Rui Fang , Wenjun Liu , Yong Zhang
摘要： The invention provides a processing circuit with multiple power supply ports and an electronic device. The processing circuit includes: N power supply ports; a first-level power supply; N middle transmission modules, connected between the first-level power supply and the corresponding power supply port, wherein at least one of which is used as a second-level power supply; and a charging protocol control module. The charging protocol control module is respectively connected to the first-level power supply, the N power supply ports, and the N middle transmission modules. The second-level power supply operates in a switching power mode or a pass through mode. In the pass through mode, the output voltage of the second-level power supply matches the input voltage received by the first-level power supply, and the output voltage of the second-level power supply is not adjustable.
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公开(公告)号：US10985602B2
公开(公告)日：2021-04-20
申请号：US16445231
申请日：2019-06-19
发明人： Qianmo Chen , Jian Shen
摘要： An automatic power switching system includes a first power interface module coupled to a first power supply terminal for obtaining a first power signal, a second power interface module coupled to a second power supply terminal for obtaining a second power signal, a power input identification module for identifying whether the first power signal meets a requirement, a power output module for receiving the first power signal or the second power signal and for providing a corresponding power signal to a power consumption module, and a switch module for turning on the second power interface module and the power output module when confirming the first power signal not meeting the requirement.
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公开(公告)号：US10819134B2
公开(公告)日：2020-10-27
申请号：US15811770
申请日：2017-11-14
发明人： Chen Tian , Jialiang Zhang
IPC分类号： H02J7/02 , G01R31/3842 , H02M3/335 , H02J7/00 , H02J7/04 , H02M7/217 , H02J7/06 , H02M1/08 , H02M7/06 , H01M10/0525 , H01M10/42 , H01M10/44 , H02M1/44 , H02M5/04 , H02M7/04 , H02J7/24 , H02M1/00 , H02J7/10
摘要： An adapter for charging control include a power converting unit, a sample and hold unit, a current acquisition and control unit. The power converting unit is configured to convert an input AC to obtain an output voltage and an output current of the adapter, and the output current of the adapter is a current of a first pulsating waveform. The sample and hold unit is connected to the power converting unit, and is configured to sample the current of the first pulsating waveform when the sample and hold unit is in a sampling state and hold a peak value of the current of the first pulsating waveform when the sample and hold unit is in a holding state. The current acquisition and control unit is configured to determine whether the sample and hold unit is in the holding state.
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公开(公告)号：US10763761B2
公开(公告)日：2020-09-01
申请号：US16469086
申请日：2018-01-12
发明人： Jiudong Ding , Yu Lu , Yunlong Dong , Haiying Li , Jie Tian , Defeng Qiu , Tiangui Jiang , Jianyang Lian
摘要： A sub-module based hybrid converter is provided. By setting a half-controlled charging link of changing full bridge sub-modules from a blocked state to a half-blocked state one by one in a charging process, and raising the voltages of half bridge sub-modules to reach the starting point of a half bridge sub-module based self-powered supply in an uncontrolled stage of the half bridge sub-modules, the starting point of the sub-module based self-powered supply is increased, and the design difficulty of the sub-module based self- powered supply is reduced. The present invention also includes another charging method for a sub-module based hybrid converter.
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公开(公告)号：US10659859B2
公开(公告)日：2020-05-19
申请号：US16135712
申请日：2018-09-19
发明人： Jeffrey Paul Solum , Yoshi Kasahara , Christopher D. Young , Gregory JOhn Haubrich , Preetham Varghese
IPC分类号： H04R1/02 , H04R1/10 , H02J50/10 , H02J7/00 , H04R25/00 , G16H40/63 , A61B5/00 , G16H40/67 , G16H50/20 , H02J7/10
摘要： A portable case for storing and charging hearing assistance devices is described. The portable case includes at least one retention structure configured to retain at least part of a hearing assistance device, an energy storage device, a charging circuitry electrically coupled to the energy storage device. The at least one processor is configured to detect when the at least one retention structure retains the at least part of the hearing assistance device, and responsive to detecting the at least one retention structure retaining the at least part of the hearing assistance device, cause the charging circuitry to charge, via an electrical connection shared by the at least part of the hearing assistance device and the charging circuitry, a power source of the hearing assistance device.
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公开(公告)号：US10651677B2
公开(公告)日：2020-05-12
申请号：US15576236
申请日：2017-01-07
发明人： Shebiao Chen , Jialiang Zhang
IPC分类号： H02J7/02 , G01R31/3842 , H02M3/335 , H02J7/00 , H02J7/04 , H02M7/217 , H02J7/06 , H02M1/08 , H02M7/06 , H01M10/0525 , H01M10/42 , H01M10/44 , H02M1/44 , H02M5/04 , H02M7/04 , H02M1/00 , H02J7/10
摘要： A charging system and charging method for a terminal (2), and a power adapter (1) and a switch power source. The switch power source comprises a first rectification unit (101), a switch unit (102), a transformer (103), a second rectification unit (104), a sampling unit (106) and a control unit (107), wherein the control unit (107) outputs a control signal to the switch unit (102) and adjusts a voltage of a first pulse waveform according to a voltage sampling value and/or a current sampling value sampled by the sampling unit (106) to obtain a primary sampling voltage, and adjusts a duty ratio of the control signal according to the primary sampling voltage, the voltage sampling value and/or the current sampling value, so that a voltage of a third pulse waveform satisfies a charging requirement. The switch power source can make an output voltage and current waveform change along with an input voltage and current waveform, so that a good power factor can be obtained. Moreover, when the switch power source is applied to the power adapter (1), a voltage of an output pulse waveform can be directly loaded to a battery of the terminal (2), so that miniaturization and low costs of the power adapter (1) can be realized.
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公开(公告)号：US10411494B2
公开(公告)日：2019-09-10
申请号：US15560911
申请日：2017-01-07
发明人： Chen Tian , Jialiang Zhang
IPC分类号： H01M10/44 , H01M10/46 , H02J7/02 , G01R31/3842 , H02M3/335 , H02J7/00 , H02J7/04 , H02M7/217 , H02J7/06 , H02M1/08 , H02M7/06 , H01M10/0525 , H01M10/42 , H02M1/44 , H02M5/04 , H02M7/04 , H02M1/00 , H02J7/10
摘要： An adapter and a method for charging control are disclosed. The adapter includes a power conversion unit, a voltage feedback unit, a current feedback unit, and a power adjustment unit. The power adjustment unit includes an input end coupled to an output end of the voltage feedback unit to an output end of the current feedback unit, and an output end coupled to the power conversion unit. The power adjustment unit is used to receive the voltage feedback signal and the current feedback signal, and stabilize the output voltage and output current of the adapter when the voltage feedback signal indicates that the output voltage of the adapter has reached the target voltage or the current feedback signal indicates the output current of the adapter has reached the target current.
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公开(公告)号：US10382028B2
公开(公告)日：2019-08-13
申请号：US16128038
申请日：2018-09-11
IPC分类号： H03K5/1536 , H03K5/15 , H02J7/02 , H02J50/10 , H03K17/687 , H02J7/10 , H02M1/00
摘要： Methods and apparatus for detecting zero-volt crossing in a field-effect transistor. A comparator compares a drain-to source voltage of the transistor to a threshold voltage. A gate voltage signal of the transistor is provided to a clock input of the comparator such that said gate voltage signal is used to latch a result of said comparison to an output of the comparator. A control function with respect to the transistor is performed based on the value of the comparator output.
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公开(公告)号：US10277059B2
公开(公告)日：2019-04-30
申请号：US15495750
申请日：2017-04-24
发明人： Lawrence Der , Sanjay Gupta
摘要： A wireless battery charging system includes an inductive receiving member for receiving an AC signal for output to a matching circuit having a variable impedance with variable matching parameters. The output of the matching circuit drives a rectifier circuit for converting the inputted AC signal to a first DC voltage and having variable rectifier parameters to vary the voltage drop thereacross. A DC-to-DC converter for converting the first DC voltage to a regulated voltage for charging the battery. A current sensor senses current through the inductive receiving member, rectifier circuit and DC-to-DC converter. A controller senses the voltage drop across each of the matching circuit, rectifier circuit and DC-to-DC converter and the current there through to determine power dissipation in each of the matching circuit, rectifier circuit and DC-to-DC converter. The power distribution in each of the matching circuit, the rectifier circuit and the DC-to-DC converter can then be varied.
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10.发明授权公开(公告)号：US10118045B2
公开(公告)日：2018-11-06
申请号：US15625892
申请日：2017-06-16
发明人： Yuping He , David K. L. Peterson
IPC分类号： A61N1/00 , A61N1/378 , H02J50/10 , A61N1/08 , A61N1/37 , H02J7/02 , H01M10/44 , H02J7/00 , H02J7/04 , H02J7/10
摘要： Circuitry useable to protect and reliably charge a rechargeable battery, even from a zero-volt state, is disclosed, and is particularly useful when employed in an implantable medical device. The circuit includes two charging paths, a first path for trickle charging the battery at a relatively low current when the battery voltage is below a threshold, and a second path for charging the battery at relatively higher currents that the battery voltage is above a certain threshold. A passive diode is used in the first trickle-charging path which allows trickle charging even when the battery voltage is too low for reliable gating, while a gateable switch (preferably a PMOS transistor) is used in the second higher-current charging path when the voltage is higher and the switch can therefore be gated more reliably. A second diode between the two paths ensures no leakage to the substrate through the gateable switch during trickle charging. The load couples to the battery through the switch, and preferably through a second switch specifically used for decoupling the load.
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