POWER SUPPLY PHASE DOUBLING SYSTEM
    1.
    发明公开

    公开(公告)号:US20230336081A1

    公开(公告)日:2023-10-19

    申请号:US17984221

    申请日:2022-11-09

    CPC classification number: H02M3/1586 H02M1/14 H02M1/088

    Abstract: 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.

    Electronic device and method of detecting efficiency of charging

    公开(公告)号:US09780599B2

    公开(公告)日:2017-10-03

    申请号:US14859372

    申请日:2015-09-21

    CPC classification number: H02J7/025 H02J50/10 H02J50/80 H02J50/90

    Abstract: 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.

    Charging circuit and charging method of battery

    公开(公告)号:US09716404B2

    公开(公告)日:2017-07-25

    申请号:US14576185

    申请日:2014-12-18

    CPC classification number: H02J7/045 H02J7/041 Y02B40/90

    Abstract: 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.

    Boost converter and power controling method thereof

    公开(公告)号:US09653998B2

    公开(公告)日:2017-05-16

    申请号:US14714344

    申请日:2015-05-18

    CPC classification number: H02M3/158 H02M1/32 H02M2003/1566

    Abstract: 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.

    Electronic device and power supplying method thereof

    公开(公告)号:US09652012B2

    公开(公告)日:2017-05-16

    申请号:US14684420

    申请日:2015-04-12

    CPC classification number: G06F1/305 G06F1/26 G06F1/28

    Abstract: 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.

    VOLTAGE DETECTION DEVICE
    6.
    发明公开

    公开(公告)号:US20240061018A1

    公开(公告)日:2024-02-22

    申请号:US17969697

    申请日:2022-10-20

    CPC classification number: G01R15/04 H03K17/687 H03F3/45071 H02H3/20

    Abstract: 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.

    Power management circuit and electronic device thereof and power supply method thereof

    公开(公告)号:US10985605B2

    公开(公告)日:2021-04-20

    申请号:US16512500

    申请日:2019-07-16

    Abstract: A power management method includes: determining, by a control circuit, whether a first connector is connected to a first power supply and whether a second connector is connected to a second power supply. The method further includes: controlling, by the control circuit, a first conversion circuit to supply power to a battery unit and a system circuit, and computing a second fully-charged condition that is less than a first fully-charged condition when a determining result is yes. The method also includes: determining, by the control circuit, whether power information of the battery unit reaches the second fully-charged condition, and controlling, by the control circuit, a second conversion circuit to convert a second power from the second connector according to the second fully-charged condition, to supply power to the battery unit and the system circuit. A related circuit and electronic device are also provided.

    Power supply module and power supply method using the same

    公开(公告)号:US10305308B2

    公开(公告)日:2019-05-28

    申请号:US15176173

    申请日:2016-06-08

    Abstract: The power supply module includes a switching power circuit, a switching unit, a power storage unit and a control unit. The switching power circuit is coupled between an input terminal and an output terminal, and used to convert a first voltage to a second voltage. The switching unit is connected to the switching power circuit in parallel. The power storage unit is coupled to the output terminal. The control unit is coupled to the switching unit and controls the switching unit to turn on selectively according to a detecting signal corresponding to a charging or discharging status of the power storage unit to output the first voltage to the output terminal.

    Protective cover and protective cover set with wireless charging function
    9.
    发明授权
    Protective cover and protective cover set with wireless charging function 有权
    防护罩和防护罩设有无线充电功能

    公开(公告)号:US09531206B2

    公开(公告)日:2016-12-27

    申请号:US14493979

    申请日:2014-09-23

    Abstract: A protective cover cooperating with a wireless charging dock is provided. The protective cover includes a first cover and a second cover. An electronic device is disposed at the first cover and electrically connected thereto. The second cover is connected to the first cover and thus the second cover can cover the first cover. The second cover includes at least one folding line and at least one charging module, and the charging module receives the inducting power from the wireless charging dock. The second cover can be folded along the folding line to form a folding state. The charging module includes a state sensing module, a power compensating module and a control module. The charging module can adjust a power compensating value and transmit the power compensating value to the wireless charging dock.

    Abstract translation: 提供与无线充电座合作的保护盖。 保护盖包括第一盖和第二盖。 电子设备设置在第一盖上并与其电连接。 第二盖连接到第一盖,因此第二盖可以覆盖第一盖。 第二盖包括至少一个折叠线和至少一个充电模块,并且充电模块从无线充电座接收感应电力。 第二盖可以沿着折叠线折叠以形成折叠状态。 充电模块包括状态感测模块,功率补偿模块和控制模块。 充电模块可以调整功率补偿值,并将功率补偿值传输到无线充电座。

    Boost converter circuit
    10.
    发明授权
    Boost converter circuit 有权
    升压转换电路

    公开(公告)号:US08975881B2

    公开(公告)日:2015-03-10

    申请号:US13838410

    申请日:2013-03-15

    CPC classification number: G05F1/62 H02M3/1584

    Abstract: A boost converter circuit includes a first boost module, a first detecting unit, a second boost module and a first detecting unit. The first boost module includes a first comparing control unit. The first detecting unit is coupled to the first boost module, and the first detecting unit adjusts a first input signal of the first comparing control unit according to a first signal of the first boost module. A second boost module is connected in parallel to the first boost module, and the second boost module includes a second comparing control unit. The second detecting unit is coupled to the second boost module, and the first detecting unit adjusts a second input signal of the second comparing control unit according to a second signal of the second boost module.

    Abstract translation: 升压转换器电路包括第一升压模块,第一检测单元,第二升压模块和第一检测单元。 第一升压模块包括第一比较控制单元。 第一检测单元耦合到第一升压模块,第一检测单元根据第一升压模块的第一信号调整第一比较控制单元的第一输入信号。 第二升压模块与第一升压模块并联连接,第二升压模块包括第二比较控制单元。 第二检测单元耦合到第二升压模块,第一检测单元根据第二升压模块的第二信号调整第二比较控制单元的第二输入信号。

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