公开(公告)号：WO2015035383A3

公开(公告)日：2015-06-04

申请号：PCT/US2014054785

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 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提供具有输入电压的输入信号的电源适配器的接口连接器以及可以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在一组模式中以模式操作，其中该组模式可以包括至少降压模式和升压模式。 具体地，充电器电路包括控制逻辑，该控制逻辑基于充电电压和电源适配器的充电能力来产生控制信号。 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以升压模式操作。 然而，如果充电电压近似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操作。