Samsung patents power chip that adjusts voltage to save battery
This patent describes a power management system for electronic devices that uses a main voltage converter to supply power to different parts of the device. It includes a controller that constantly measures how much voltage is lost as electricity travels through the device's internal wiring. The system then adjusts the main voltage in real-time to ensure each part gets exactly what it needs without wasting energy.
In the filing’s own words
An electronic device includes a first power management device configured to receive an input voltage, and output first voltages based on the input voltage, and at least one consumer which is configured to receive the first voltages from the first power management device, and operate based on the first voltages. The first power management device includes a switching regulator configured to generate a converted voltage from the input voltage, a first LDO regulator which is configured to generate a first output voltage from a first drop voltage generated by the converted voltage passed through a first PDN, a second LDO regulator and PDN, and a switching regulator which is configured to estimate a first dropout voltage of the first LDO regulator, calculate a voltage drop caused by the first PDN, and dynamically control the converted voltage based on estimated dropout voltages and calculated voltage drops caused by the PDNs.
What exactly they claim (claim 1)
1. An electronic device comprising: a first power management device configured to receive an input voltage and output a plurality of first voltages based on the input voltage; and at least one consumer configured to receive the plurality of first voltages from the first power management device and operate based on the plurality of first voltages, wherein the first power management device includes: a switching regulator configured to generate a converted voltage based on the input voltage, a first low drop-out (LDO) regulator configured to generate a first output voltage based on a first drop voltage, the first drop voltage generated based on the converted voltage passing through a first power distribution network (PDN), a second LDO regulator which is configured to generate a second output voltage based on a second drop voltage, the second drop voltage generated based on the converted voltage passing through a second PDN, and a switching regulator controller configured to determine a first dropout voltage of the first LDO regulator based on a first output current of the first LDO regulator, determine a second dropout voltage of the second LDO regulator based on a second output current of the second LDO regulator, determine a first voltage drop caused by the first PDN based on a first input current and a first input voltage of the first LDO regulator, determine a second voltage drop caused by the second PDN based on a second input current and a second input voltage of the second LDO regulator, and dynamically control the converted voltage based on the first dropout voltage, the second dropout voltage, the first voltage drop, and the second voltage drop.
Facts
- Company
- Samsung (SAMSUNG ELECTRONICS CO., LTD.)
- Official title
- Electronic devices with power management
- Patent number
- US12748448B2
- Application number
- 18921665
- Filed
- Oct 21, 2024
- Granted
- Sep 29, 2026
- Inventors
- 2
- Claims
- 20
Classified under
G05F 1/577 Physics & computingG05F 1/563 Physics & computingG05F 1/565 Physics & computingG05F 1/575 Physics & computingH02M 1/0045 Electricity & electronicsH02J 1/082 Electricity & electronicsMore from Samsung 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.