Apple patents power supply design that splits voltage across multiple stages
Apple describes a power supply that converts wall outlet electricity into a steady current using multiple converter modules connected in a specific pattern. The design links the inputs of these modules in series and their outputs in parallel, with the modules running at staggered timing intervals to manage the flow of power.
In the filing’s own words
An AC/DC power supply can include a full wave rectifier that receives an AC input voltage and produces a rectified AC voltage; a plurality of single stage AC/DC converter modules; and an inductor that couples the rectified AC voltage to a first converter module of the plurality of single stage AC/DC converter modules; wherein the plurality of single stage AC/DC converter modules have their inputs connected in series and their outputs connected in parallel. The plurality of single stage AC/DC converter modules can be two single stage AC/DC converter modules. The two single stage AC/DC converter modules can be driven 180 degrees out of phase with respect to each other. The plurality of single stage AC/DC converter modules can be driven 360/n degrees out of phase with respect to each other, where n is a number of single stage AC/DC converter modules in the plurality.
What exactly they claim (claim 1)
1. An AC/DC power supply comprising: a full wave rectifier that receives an AC input voltage and produces a rectified AC voltage; a plurality of single stage AC/DC converter modules; and an inductor that couples the rectified AC voltage to a first converter module of the plurality of single stage AC/DC converter modules; wherein the plurality of single stage AC/DC converter modules have their inputs connected in series and their outputs connected in parallel.
Facts
- Company
- Apple (Apple Inc.)
- Official title
- SINGLE STAGE ISOLATED AC/DC POWER SUPPLY WITH INPUT SERIES OUTPUT PARALLEL (ISOP) STRUCTURE
- Publication number
- US20260302966A1
- Application number
- 19095945
- Filed
- Mar 31, 2025
- Published
- Oct 1, 2026
- Inventors
- 1
- Claims
- 20
Classified under
H02M 7/217 Electricity & electronicsMore from Apple in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.