The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 28, 2018
Filed:
Jun. 23, 2017
Apple Inc., Cupertino, CA (US);
Sunil M. Akre, Santa Clara, CA (US);
Suresh B. Kariyadan, San Jose, CA (US);
Vincent W. Trimeloni, Cupertino, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A module stack includes a lower module, a middle module above the lower module, and an upper module above the middle module. The lower module has power stage control circuitry configured to convert a PWM input signal into phase driver control signals, and power stages to be controlled by the phase driver control signals, respectively. The middle module has phase inductors each having a respective winding and a respective magnetic core. The respective winding has one end joined to a respective one of the power stages in the lower module and another end joined to a common node in the middle module. The upper module has a current sense resistor that has one end joined to the common node in the middle module and another end joined to an output node in the upper module. Other embodiments are also described and claimed.