公开(公告)号：US20140210400A1

公开(公告)日：2014-07-31

申请号：US13852706

申请日：2013-03-28

Applicant: QUALCOMM INCORPORATED

Inventor： Ricardo T. Goncalves ,  Jennifer A. Hagstrom

IPC: H02J7/00 ,  H03K5/153

CPC classification number: H02J7/0052 ,  H02J7/0029 ,  H02J7/0065 ,  H02J2007/0037 ,  H02M1/32 ,  H02M3/1588 ,  Y02B40/90 ,  Y02B70/1466

Abstract: Exemplary embodiments are related to detecting a reverse-boosting operation of a battery charger. A device may include a plurality of switches for receiving an input voltage at an input port and conveying an output voltage. The device may also include a first sensing device coupled to the input port configured to detect if an input current is less than a threshold current. Further, the device may include a second sensing device selectively coupled to the input port to detect if the input voltage is less than a threshold voltage.

Abstract translation: 示例性实施例涉及检测电池充电器的反向升压操作。 设备可以包括多个开关，用于在输入端口处接收输入电压并传送输出电压。 该装置还可以包括耦合到输入端口的第一感测装置，其配置成检测输入电流是否小于阈值电流。 此外，该装置可以包括选择性地耦合到输入端口的第二感测装置，以检测输入电压是否小于阈值电压。

公开(公告)号：US20140103862A1

公开(公告)日：2014-04-17

申请号：US13654322

申请日：2012-10-17

Applicant: QUALCOMM INCORPORATED

Inventor： Jongshick Ahn ,  Eric B. Zeisel ,  Cheong Kun ,  Jennifer A. Hagstrom

IPC: H02J7/00 ,  H01H9/00

CPC classification number: H03K3/02335 ,  Y10T307/858

Abstract: Exemplary embodiments are directed to power path switching between multiple charging ports of an electronic device. A device may include a charging port of a plurality of charging ports for coupling to a power supply via an over-voltage protection circuit. The device may further including a comparison unit configured to couple the charging port to the power supply based at least partially on a comparison between a voltage at an input of the over-voltage protection circuit coupled to the charging port with a voltage at the output of the over-voltage protection circuit coupled to the power supply.

Abstract translation: 示例性实施例涉及电子设备的多个充电端口之间的功率路径切换。 设备可以包括多个充电端口的充电端口，用于经由过电压保护电路耦合到电源。 该装置还可以包括比较单元，该比较单元被配置为至少部分地基于耦合到充电端口的过电压保护电路的输入端处的电压与输出端的电压之间的比较来将充电端口耦合到电源 过电压保护电路耦合到电源。