公开(公告)号：US11539231B1

公开(公告)日：2022-12-27

申请号：US16520036

申请日：2019-07-23

Applicant: Apple Inc.

Inventor： Ashish K. Sahoo ,  Poornima Mazumdar ,  Nancy Y. Sun ,  Zaka Ullah Zahid ,  Dong Young Lee

IPC: H02J7/00 ,  H02J7/04

Abstract: Aspects of the present disclosure involve a system and method for providing a boosted voltage using a single stage dual active bridge converter. In one embodiment, the single stage dual active bridge converter is introduced for high voltage charging using phase shift and frequency control. Phase shift and frequency control can be implemented on duty cycled switches and pulse width modulated switches in order to achieve a desired output voltage. In another embodiment, the phase shift and frequency controlled single stage dual active bridge converter is replicated in modular form to provide a single-phase system that provides a voltage for charging a high voltage system. In yet another embodiment, the phase shift and frequency controlled single stage dual active bridge converter is replicated in modular form to provide a three-phase system that provides a voltage for charging a high voltage system.

公开(公告)号：US10389166B1

公开(公告)日：2019-08-20

申请号：US15712795

申请日：2017-09-22

Applicant: Apple Inc.

Inventor： Ashish K. Sahoo ,  Poornima Mazumdar ,  Nancy Y. Sun ,  Zaka Ullah Zahid ,  Dong Young Lee

IPC: H02J7/04 ,  H02J7/00

Abstract: Aspects of the present disclosure involve a system and method for providing a boosted voltage using a single stage dual active bridge converter. In one embodiment, the single stage dual active bridge converter is introduced for high voltage charging using phase shift and frequency control. Phase shift and frequency control can be implemented on duty cycled switches and pulse width modulated switches in order to achieve a desired output voltage. In another embodiment, the phase shift and frequency controlled single stage dual active bridge converter is replicated in modular form to provide a single-phase system that provides a voltage for charging a high voltage system. In yet another embodiment, the phase shift and frequency controlled single stage dual active bridge converter is replicated in modular form to provide a three-phase system that provides a voltage for charging a high voltage system.