How do phone chargers work? (thin cable question)

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SUMMARY

Phone chargers utilize two wires within a single thin cable, contrary to the misconception that they operate on one wire. Most chargers, particularly USB chargers, contain four wires: two for power and two for data transmission. The power wires typically use 24 gauge wire, capable of carrying up to 2A. This design allows for efficient power delivery while maintaining a compact form factor.

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  • Understanding of basic electrical circuits
  • Familiarity with USB specifications
  • Knowledge of wire gauge and its implications on current capacity
  • Concept of inductive charging technology
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  • Research USB specifications, focusing on power and data wire functions
  • Learn about wire gauge standards and their impact on electrical current
  • Explore inductive charging technology and its applications
  • Investigate the construction and materials used in phone charger cables
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Electronics enthusiasts, electrical engineers, and anyone interested in understanding the mechanics of phone charging technology.

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We're all told how circuits have to be closed and loop back to be able to have the electrons flowing and give things power, so is that the reason most outlet charges have two wires connected? If so, why are phone chargers only one wire, and how are they so thin?
Thanks!
 
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Cheesycheese213 said:
We're all told how circuits have to be closed and loop back to be able to have the electrons flowing and give things power, so is that the reason most outlet charges have two wires connected? If so, why are phone chargers only one wire, and how are they so thin?
Thanks!
They are NOT one wire, they are two wires in a small cable because yes, you need two wires (or no wires if you do inductive charging)
 
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+1 Most chargers are USB and that has 4 wires in the one cable. 2 are used for data and 2 for power.
 
I believe usb uses 24 gauge wire for the 2 power wires which can just about manage to carry 2A.
 
http://www.audiopolitan.com/wp-content/uploads/2013/07/Pangea-Audio-USB-AG-Cable-Construction-Cross-Sectional-View-Audiopolitan.jpg
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