公开(公告)号：WO2004097956A2

公开(公告)日：2004-11-11

申请号：PCT/US2004/012215

申请日：2004-04-20

Applicant: MOTOROLA, INC. ,  PATINO, Joseph ,  GEREN, Michael, D.

Inventor： PATINO, Joseph ,  GEREN, Michael, D.

IPC: H01M

CPC classification number: H02J7/0091

Abstract: A protection circuit (100) for use with a battery operated device (50) which includes an over temperature detector (110), a controller (130), and a voltage divider circuit (102 and 106). The voltage divider circuit includes a multi-use thermistor (102) for monitoring a temperature of a battery cell (104), a battery charger, or a battery operated device. Further, the thermistor can be operatively connected to the over temperature detector. An input voltage at the input (114) of the over temperature detector can vary relative to a variance in the monitored temperature. The temperature detector can signal the controller to terminate the charging of the battery cell if the temperature exceeds a predefined value. The device discharge detector can signal the controller to terminate the discharging of the battery cell if the battery operated device determines a specific event such as water intrusion, circuit failure or a software problem.

Abstract translation: 一种与电池驱动装置（50）一起使用的保护电路（100），其包括过温度检测器（110），控制器（130）和分压器电路（102和106）。 分压器电路包括用于监测电池单元（104），电池充电器或电池供电装置的温度的多用热敏电阻（102）。 此外，热敏电阻可以可操作地连接到过温度检测器。 过温度检测器的输入端（114）处的输入电压可以相对于所监视温度的变化而变化。 如果温度超过预定值，温度检测器可以通知控制器终止电池单元的充电。 如果电池供电装置确定特定事件，例如水入侵，电路故障或软件问题，装置放电检测器可以通知控制器终止电池单元的放电。

公开(公告)号：WO1997040545A1

公开(公告)日：1997-10-30

申请号：PCT/US1997006843

申请日：1997-04-22

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  OGLESBEE, John, W. ,  GEREN, Michael, D.

IPC: H01M10/46

CPC classification number: H02J7/022 ,  H02M7/217 ,  H02M2001/0006 ,  Y10S320/29

Abstract: A battery charger (10) is provided with a power supply (26) which is energized by a main winding (22) and a bias winding (24) on the secondary side (18) of an input transformer (14). The charger switches a main voltage level provided at a main voltage output (28) according to a pulse width modulation scheme, and has an output section (36) for filtering the switched voltage. A power switch (38) is coupled between the output section and the main voltage output, and is driven by a bias switch (48) coupled between the control terminal (50) of the power switch, and a bias voltage output (30), which provides a bias voltage level that is higher than the main voltage level by a minimum delta.

Abstract translation: 电池充电器（10）设置有由输入变压器（14）的次级侧（18）上的主绕组（22）和偏置绕组（24）激励的电源（26）。 充电器根据脉冲宽度调制方式切换主电压输出（28）提供的主电压电平，并具有用于对开关电压进行滤波的输出部（36）。 电源开关（38）耦合在输出部分和主电压输出之间，并由耦合在电源开关的控制端（50）和偏置电压输出（30）之间的偏置开关（48）驱动， 其提供高于主电压电平最小delta的偏置电压电平。

公开(公告)号：EP1012898A1

公开(公告)日：2000-06-28

申请号：EP97921356.8

申请日：1997-04-22

Applicant: MOTOROLA, INC.

Inventor： OGLESBEE, John, W. ,  GEREN, Michael, D.

IPC: H01M10/46

CPC classification number: H02J7/022 ,  H02M7/217 ,  H02M2001/0006 ,  Y10S320/29

Abstract: A battery charger (10) is provided with a power supply (26) which is energized by a main winding (22) and a bias winding (24) on the secondary side (18) of an input transformer (14). The charger switches a main voltage level provided at a main voltage output (28) according to a pulse width modulation scheme, and has an output section (36) for filtering the switched voltage. A power switch (38) is coupled between the output section and the main voltage output, and is driven by a bias switch (48) coupled between the control terminal (50) of the power switch, and a bias voltage output (30), which provides a bias voltage level that is higher than the main voltage level by a minimum delta.

公开(公告)号：EP1012898B1

公开(公告)日：2005-12-14

申请号：EP97921356.8

申请日：1997-04-22

Applicant: MOTOROLA, INC.

Inventor： OGLESBEE, John, W. ,  GEREN, Michael, D.

IPC: H01M10/46 ,  H02M7/217 ,  H02J7/02

CPC classification number: H02J7/022 ,  H02M7/217 ,  H02M2001/0006 ,  Y10S320/29

Abstract: A battery charger (10) is provided with a power supply (26) which is energized by a main winding (22) and a bias winding (24) on the secondary side (18) of an input transformer (14). The charger switches a main voltage level provided at a main voltage output (28) according to a pulse width modulation scheme, and has an output section (36) for filtering the switched voltage. A power switch (38) is coupled between the output section and the main voltage output, and is driven by a bias switch (48) coupled between the control terminal (50) of the power switch, and a bias voltage output (30), which provides a bias voltage level that is higher than the main voltage level by a minimum delta.

公开(公告)号：EP0904609A1

公开(公告)日：1999-03-31

申请号：EP98910172.0

申请日：1998-03-02

Applicant: MOTOROLA INC.

Inventor： DOUGLAS, Twanika, D. ,  PATINO, Joseph ,  GEREN, Michael, D. ,  WILLIAMS, William, R.

IPC: H02J7 ,  H01M10

CPC classification number: H02J7/0081 ,  H01M10/44 ,  H02J7/0091

Abstract: A method for charging a battery or battery pack (206) provides a scheme for terminating a rapid charging regime only after both a temperature and voltage threshold are exceeded. This allows a battery to continue to receive a rapid charge even when battery temperatures are rising rapidly due to external (non-charge related) conditions.