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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
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.
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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
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.
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公开(公告)号：US20190210480A1
公开(公告)日：2019-07-11
申请号：US16357089
申请日：2019-03-18
Applicant: Apple Inc.
Inventor： Jeffrey M. Alves , Zaka Ullah Zahid , Jennifer D. Pollock , Derryk C. Davis , Hunter H. Wu
CPC classification number: B60L53/36 , B60L3/12 , B60L53/12 , B60L53/124 , B60L53/37 , B60L53/39 , B60L53/60 , B60L2240/72 , B60L2260/32 , B60L2260/46 , H02J7/025 , H02J50/10 , H02J50/60 , H02J50/90 , Y02T10/7005 , Y02T10/7072 , Y02T10/7291 , Y02T90/121 , Y02T90/122 , Y02T90/125 , Y02T90/128 , Y02T90/14 , Y02T90/163
Abstract: A system such as a vehicle may have control circuitry that controls a steering and propulsion system. The control circuitry may use the steering and propulsion system to park the vehicle in a parking space. Wireless power may be transferred from a wireless power transmitter in the parking space to a wireless power receiver coupled to a vehicle body in the vehicle. The control circuitry may use sensors to make sensor measurements during parking events. The control circuitry may also gather information on wireless power transfer efficiency. Historical vehicle-to-wireless-power-transmitter alignment information may be updated based on the sensor measurements and corresponding wireless power transfer efficiency measurements and may be used to park the vehicle in an optimal location during subsequent parking events. Vehicle parking position may be intentionally varied over a series of parking events to gather additional alignment information.
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