公开(公告)号：US20150002161A1

公开(公告)日：2015-01-01

申请号：US14319560

申请日：2014-06-30

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： MOHD FAISAL ABDULLAH ,  KEAN GIAP NG ,  BENG KWANG TAN

IPC: G01R31/36

CPC classification number: G06F1/3212 ,  G01R31/026 ,  G01R31/3693 ,  Y02D10/174

Abstract: A method and apparatus for distinguishing momentary loss of battery contact from a battery undervoltage condition in a portable device sense the current into the portable device from the battery, and when the current drops to a level indicating that contact with the battery has been lost, the portable device is allowed to operate at a lower voltage than a nominal undervoltage limit of the battery until contact is resumed.

Abstract translation: 用于区分便携式装置中的电池触点的瞬时损失与电池欠压状态的方法和装置感测从电池进入便携式装置的电流，并且当电流下降到指示与电池的接触已经丢失的水平时， 允许便携式设备在比电池的额定欠电压极限更低的电压下工作，直到恢复接触。

公开(公告)号：US20210351586A1

公开(公告)日：2021-11-11

申请号：US16869620

申请日：2020-05-08

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： MUHAMAD RIDZUAN AZIZAN ,  CHEN KOK YEOH ,  WAI MUN LEE ,  MOHD FAISAL ABDULLAH ,  KOW CHEE CHONG ,  MACWIEN KRISHNAMURTHI

IPC: H02H9/02 ,  H02H1/00 ,  H02H3/08

Abstract: An apparatus and method for providing a selectively reduced voltage to a portable electronic device are disclosed. When a determination is made that an output voltage from a voltage source exceeds a predefined maximum permitted voltage, a plurality of circuitries, including an adaptive active current limiting circuitry, are enabled in order to derive the reduced voltage from the output voltage. The reduced voltage is at least at or below the predefined maximum permitted voltage and is supplied to the portable electronic device by battery circuitry that includes the active current limiting circuitry.

公开(公告)号：US20210351600A1

公开(公告)日：2021-11-11

申请号：US16869627

申请日：2020-05-08

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： MUHAMAD RIDZUAN AZIZAN ,  CHEN KOK YEOH ,  WAI MUN LEE ,  MOHD FAISAL ABDULLAH ,  KOW CHEE CHONG ,  MACWIEN KRISHNAMURTHI

IPC: H02J7/00 ,  H01M2/22

Abstract: Battery circuitry forms part of apparatus for connecting a battery power source to a portable electronic device. The battery circuitry is configured to detect a transitioning of an enable signal, caused by actuation of a power switch, from a de-asserted state to an asserted state. In response to detecting the transitioning of the enable signal, the battery circuitry is further configured to open an electrical path within the battery circuitry. The path, when opened, connects the battery power source in a manner that permits powering on of the portable electronic device.