公开(公告)号：US20150137766A1

公开(公告)日：2015-05-21

申请号：US14154061

申请日：2014-01-13

Applicant: BROADCOM CORPORATION

Inventor： Prasanna OBALA BHUVANESH ,  Jay Edward Ackerman ,  Michael Owen Baker ,  Ryan Michael Desrosiers

IPC: H02J7/00

CPC classification number: G06F1/263 ,  G06F1/26 ,  G06F1/266 ,  H02J7/0036 ,  H02J7/0057 ,  H02J7/0068 ,  H02J7/007 ,  H02J2007/0059 ,  H02J2007/0095

Abstract: A circuit for a switching charger includes multiple input supply nodes, and a number of charging paths. Each input supply node is connectable to a power source. Each charging path may include a middle node connected to a coupling switch and a pass transistor. The coupling switch may be configured to activate a corresponding charging path of the charging paths. A pre-charging switch may be coupled to a corresponding middle node of each charging path. The pass transistor of an activated one of the charging paths may be configured to provide a switching voltage at an input of a charging sub-circuit. The pre-charging switch may be configurable to pre-charge a middle node of a non-activated path to a high voltage to prevent an unwanted high current passing through a body diode of a corresponding pass transistor of the non-activated path.

Abstract translation: 用于切换充电器的电路包括多个输入电源节点和多个充电路径。 每个输入电源节点可连接到电源。 每个充电路径可以包括连接到耦合开关和传输晶体管的中间节点。 耦合开关可以被配置为激活充电路径的相应充电路径。 预充电开关可以耦合到每个充电路径的相应中间节点。 充电路径中激活的一个的通过晶体管可以被配置为在充电子电路的输入处提供开关电压。 预充电开关可以被配置为将未激活路径的中间节点预先充电到高电压，以防止不期望的高电流通过非激活路径的相应的通过晶体管的体二极管。

公开(公告)号：US09411387B2

公开(公告)日：2016-08-09

申请号：US14154061

申请日：2014-01-13

Applicant: BROADCOM CORPORATION

Inventor： Prasanna Obala Bhuvanesh ,  Jay Edward Ackerman ,  Michael Owen Baker ,  Ryan Michael Desrosiers

IPC: H02J7/00 ,  H02J7/14 ,  G06F1/00 ,  G06F1/26

CPC classification number: G06F1/263 ,  G06F1/26 ,  G06F1/266 ,  H02J7/0036 ,  H02J7/0057 ,  H02J7/0068 ,  H02J7/007 ,  H02J2007/0059 ,  H02J2007/0095

Abstract: A circuit for a switching charger includes multiple input supply nodes, and a number of charging paths. Each input supply node is connectable to a power source. Each charging path may include a middle node connected to a coupling switch and a pass transistor. The coupling switch may be configured to activate a corresponding charging path of the charging paths. A pre-charging switch may be coupled to a corresponding middle node of each charging path. The pass transistor of an activated one of the charging paths may be configured to provide a switching voltage at an input of a charging sub-circuit. The pre-charging switch may be configurable to pre-charge a middle node of a non-activated path to a high voltage to prevent an unwanted high current passing through a body diode of a corresponding pass transistor of the non-activated path.

Abstract translation: 用于切换充电器的电路包括多个输入电源节点和多个充电路径。 每个输入电源节点可连接到电源。 每个充电路径可以包括连接到耦合开关和传输晶体管的中间节点。 耦合开关可以被配置为激活充电路径的相应充电路径。 预充电开关可以耦合到每个充电路径的相应中间节点。 充电路径中激活的一个的通过晶体管可以被配置为在充电子电路的输入处提供开关电压。 预充电开关可以被配置为将未激活路径的中间节点预充电到高电压，以防止不需要的高电流通过非激活路径的相应的通过晶体管的体二极管。