公开(公告)号：US09419455B2

公开(公告)日：2016-08-16

申请号：US14041622

申请日：2013-09-30

Applicant: BROADCOM CORPORATION

Inventor： Xuezhen Wang ,  Russell Eliot Radke ,  Kerry Alan Thompson

IPC: H02J7/00

CPC classification number: H02J7/0052 ,  H02J7/0093 ,  H02J2007/0096

Abstract: A multimode battery charger circuit supporting switch mode and linear mode charging operations. In various embodiments, the multimode battery charging circuit includes mode control circuitry, a linear gate driver, a pulse width modulation (PWM) control circuit, a programmable constant current control loop circuit, and a programmable constant voltage control loop circuit. In operation, the mode control circuitry receives a charge mode indication signal corresponding to a desired charge mode. Based on this signal, the mode control circuitry enables either the linear gate driver or PWM control circuit to provide control signals to output transistors coupled between an adapter power port and a battery pack, thereby supporting a plurality of charging modes. In some embodiments, one or more of the output transistors are formed on a common substrate with the multimode battery charger circuit.

Abstract translation: 多模电池充电器电路支持开关模式和线性充电操作。 在各种实施例中，多模式电池充电电路包括模式控制电路，线性栅极驱动器，脉冲宽度调制（PWM）控制电路，可编程恒定电流控制环路电路和可编程恒定电压控制环路电路。 在操作中，模式控制电路接收对应于所需充电模式的充电模式指示信号。 基于该信号，模式控制电路使得线性栅极驱动器或PWM控制电路能够向连接在适配器电源端口和电池组之间的输出晶体管提供控制信号，从而支持多种充电模式。 在一些实施例中，一个或多个输出晶体管与多模电池充电器电路形成在公共衬底上。

公开(公告)号：US20150069951A1

公开(公告)日：2015-03-12

申请号：US14041622

申请日：2013-09-30

Applicant: BROADCOM CORPORATION

Inventor： Xuezhen Wang ,  Russell Eliot Radke ,  Kerry Alan Thompson

IPC: H02J7/00

CPC classification number: H02J7/0052 ,  H02J7/0093 ,  H02J2007/0096

Abstract: A multimode battery charger circuit supporting switch mode and linear mode charging operations. In various embodiments, the multimode battery charging circuit includes mode control circuitry, a linear gate driver, a pulse width modulation (PWM) control circuit, a programmable constant current control loop circuit, and a programmable constant voltage control loop circuit. In operation, the mode control circuitry receives a charge mode indication signal corresponding to a desired charge mode. Based on this signal, the mode control circuitry enables either the linear gate driver or PWM control circuit to provide control signals to output transistors coupled between an adapter power port and a battery pack, thereby supporting a plurality of charging modes. In some embodiments, one or more of the output transistors are formed on a common substrate with the multimode battery charger circuit.

Abstract translation: 多模电池充电器电路支持开关模式和线性充电操作。 在各种实施例中，多模式电池充电电路包括模式控制电路，线性栅极驱动器，脉冲宽度调制（PWM）控制电路，可编程恒定电流控制环路电路和可编程恒定电压控制环路电路。 在操作中，模式控制电路接收对应于所需充电模式的充电模式指示信号。 基于该信号，模式控制电路使得线性栅极驱动器或PWM控制电路能够向连接在适配器电源端口和电池组之间的输出晶体管提供控制信号，从而支持多种充电模式。 在一些实施例中，一个或多个输出晶体管与多模电池充电器电路形成在公共衬底上。