公开(公告)号：WO1995019054A1

公开(公告)日：1995-07-13

申请号：PCT/US1995000227

申请日：1995-01-03

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  MEADOWS, Vernon ,  FERNANDEZ, Jose, Maria

IPC: H01M10/44

CPC classification number: G05F1/573 ,  H02J7/0072 ,  Y10S320/25

Abstract: A battery charger (100) with an improved wide band, constant current source (10) with improved dynamic range is provided. The wide band constant current source (10) with improved dynamic range may include a current source (22), a voltage reference amplifier (50), a current control network (70) and overcurrent control circuit (80).

Abstract translation: 提供具有改进的宽带，具有改善的动态范围的恒定电流源（10）的电池充电器（100）。 具有改善的动态范围的宽带恒流源（10）可以包括电流源（22），电压参考放大器（50），电流控制网络（70）和过电流控制电路（80）。

公开(公告)号：EP0789947A1

公开(公告)日：1997-08-20

申请号：EP95936238.0

申请日：1995-10-04

Applicant: MOTOROLA, INC.

Inventor： FERNANDEZ, Jose, M. ,  GARRETT, Scott, M. ,  MEADOWS, Vernon

IPC: H01M10 ,  H02H7 ,  H02J7

CPC classification number: H02J7/0031

Abstract: A battery pack (12) for powering a device (14) sensitive to input voltage contains a protection switch (28) and a control circuit (26). When the battery pack (12) is charged by a charger (10) and the voltage of the battery pack approaches the maximum safe level of the device (14), the control circuit (26) causes the protection switch (28) to electrically switch open to protect the device (14) from excessive voltage potentially output by the charger. Where the cells (16) are lithium ion cells or a type having a maximum safe voltage, a safety switch (49) is included to interrupt charge current (52) through the cells (16). The safety switch (49) is delayed by resistor/capacitor network (51, 53) so that it switches after the protection switch (28). The safety switch (49) includes a diode (58) to allow the device (14) to remain powered while the safety switch is blocking charge current. Further, diodes (40 and 42) are required to eliminate measurement error of the control circuit (26) if the battery pack (12) is charged through the device contacts (20 and 24).

公开(公告)号：EP0748524A1

公开(公告)日：1996-12-18

申请号：EP94926605.0

申请日：1994-08-26

Applicant: MOTOROLA, INC.

Inventor： MEADOWS, Vernon ,  ANANI, Anaba A. ,  FERNANDEZ, Jose M.

IPC: H01M10 ,  H02J7

CPC classification number: H01M10/44 ,  H02J7/0081 ,  H02J7/0086

Abstract: A rechargeable battery (208) is charged using a charger (202). The charge current provided by charger (202) is a stepped-down pulse where the battery charge current rate change is determined by the rise time of the battery voltage. The charge pulse sequence is repeated after the polarization recovery period is completed. The polarization recovery time of the previous period will determine if the stepped-down pulse has to be modified.

公开(公告)号：EP0868755A1

公开(公告)日：1998-10-07

申请号：EP96941396.0

申请日：1996-11-19

Applicant: MOTOROLA, INC.

Inventor： HWANG, B., Chester ,  FERNANDEZ, Jose, M. ,  MEADOWS, Vernon ,  THOMAS, Simon ,  AMERO, Willard, F., Jr.

IPC: G06F1 ,  G11C5 ,  H01M2 ,  H01M10 ,  H02J7 ,  H04M1 ,  H01M6

CPC classification number: H01M10/425 ,  H01M2/1066 ,  H01M2/20 ,  H01M10/48 ,  H01M10/486 ,  H01M2200/10 ,  H02J7/0011

Abstract: A modular battery pack (10) is described having several embodiments. In general, the modular battery pack has a battery cell cartridge (12), a circuit cartridge (14), and a housing (16). In conventional battery packs these three elements are combined into one single unit. The invention modularizes these components such that portions may be reused and shared. This results in a more cost effective power system for a portable electrical or electronic device (40) since, once the battery cell or cells (48) have expired, they can be replaced without having to replace the other components, in particular the circuitry.

公开(公告)号：EP0799504A1

公开(公告)日：1997-10-08

申请号：EP95944306.0

申请日：1995-11-29

Applicant: MOTOROLA, INC.

Inventor： FERNANDEZ, Jose M. ,  MEADOWS, Vernon ,  GARRETT, Scott M. ,  LAM, Dao N. ,  KAMKE, James F.

IPC: H01M10

CPC classification number: H01M10/48 ,  H01M10/486

Abstract: A battery system (400) for use with portable electronic products which includes protection circuitry for allowing the battery system to be safely recharged in a recharging system. The battery system (400) includes cells (401) and a plurality of controls including an overcharge protection circuit (433) for limiting the amount of current to the cells (401) by a charging network and a thermistor (415) and thermistor control (417) for controlling the state of the thermistor (415) to simulate a high temperature condition allowing the charging network to switch modes and accommodate battery system (400) which does not follow the charging regimen provided by charging system.

公开(公告)号：EP0712539A1

公开(公告)日：1996-05-22

申请号：EP94923525.0

申请日：1994-07-18

Applicant: MOTOROLA, INC.

Inventor： MEADOWS, Vernon ,  THOMAS, George ,  ANANI, Anaba A.

IPC: H01M2 ,  H01M4 ,  H01M10

CPC classification number: H01M2/16 ,  H01M4/02 ,  H01M10/4214

Abstract: A rechargeable battery cell (10) has an integral vibrating means. The cell has a positive electrode (14), a negative electrode (16), and an electrolyte (18) disposed between the two electrodes. The electrolyte contains a piezoelectric material (20) that vibrates when subjected to an alternating electric field. In one embodiment, at least one of the electrodes contains a piezoelectric material that functions as a vibrating means when subjected to an alternating electric field. In another embodiment, a piezoelectric material that functions as a vibrating means when subjected to an alternating electric field is attached as part of a current collector (22) to at least one of the electrodes. The piezoelectric material performs an additional function of being an electronic insulator for the purpose of stacking the cells.