公开(公告)号：WO2015035383A2

公开(公告)日：2015-03-12

申请号：PCT/US2014/054785

申请日：2014-09-09

Applicant: APPLE INC.

Inventor： HU, Yongxuan ,  ELKAYAM, Shimon ,  CONNORS, Collin E. ,  YANG, Liyu

IPC: H02J7/00

CPC classification number: H02J7/0052 ,  H02J7/0004 ,  H02J7/0065 ,  H02J7/007 ,  H02J2007/0059 ,  H02M3/1582

Abstract: A charger circuit includes an interface connector coupled to a power adapter that provides an input signal having an input voltage, and a buck-boost converter circuit that may be coupled to a battery having a charging voltage. At a given time, the buck-boost converter circuit operates in a mode in a group of modes based on a control signal, where the group of modes may include at least a buck mode and a boost mode. In particular, the charger circuit includes control logic that generates the control signal based on the charging voltage and a charging capability of the power adapter. Thus, if the charging voltage suitably exceeds the input voltage, the buck-boost converter circuit may operate in the boost mode. However, if the charging voltage is approximately less than or equal to the input voltage, the buck-boost converter circuit may operate in the buck mode.

Abstract translation: 充电器电路包括耦合到电源适配器的接口连接器，其提供具有输入电压的输入信号，以及可耦合到具有充电电压的电池的降压 - 升压转换器电路。 在给定时间，降压 - 升压转换器电路基于控制信号以一组模式工作，其中该组模式可以至少包括降压模式和升压模式。 特别地，充电器电路包括基于充电电压和电源适配器的充电能力产生控制信号的控制逻辑。 因此，如果充电电压适当地超过输入电压，则降压 - 升压转换器电路可以在升压模式下操作。 然而，如果充电电压大致小于或等于输入电压，则降压 - 升压转换器电路可以在降压模式下工作。

公开(公告)号：EP3031119A2

公开(公告)日：2016-06-15

申请号：EP14780662.4

申请日：2014-09-09

Applicant: Apple Inc.

Inventor： HU, Yongxuan ,  ELKAYAM, Shimon ,  CONNORS, Collin E. ,  YANG, Liyu

IPC: H02J7/00 ,  H02J7/02

CPC classification number: H02J7/0052 ,  H02J7/0004 ,  H02J7/0065 ,  H02J7/007 ,  H02J2007/0059 ,  H02M3/1582

Abstract: A charging circuit includes an interface connector that may be coupled to a power adapter that provides an input voltage, and a buck-boost charging circuit that receives the input voltage and may be coupled to and may provide an output signal to a battery having a charging voltage. For a given input voltage and a given charging voltage, the buck-boost charging circuit operates in one of a group of modes based on a control signal, where the group of modes comprises: a buck mode, a boost mode and a buck-boost mode. In particular, the charging circuit includes control logic that generates the control signal based on the charging voltage and the input voltage. Thus, the buck-boost charging circuit may operate over a continuous range of input voltages and charging voltages.