Maximizing Wireless Charger Efficiency

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Discussion Overview

The discussion revolves around maximizing the efficiency of a wireless charger pad utilizing inductive coils. Participants explore various aspects of wireless charging technology, including power transfer efficiency, coil design, and operational frequency.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant seeks suggestions for improving the efficiency of a wireless charger, noting that existing projects achieve only about 57% efficiency compared to wired chargers.
  • Another participant suggests conducting experiments with coils and switching rates, emphasizing the importance of selecting an appropriate operating frequency and designing an efficient power circuit for the transmitter coil.
  • A participant requests clarification on the significance of frequency selection and inquires about the type of power supply needed for the wireless charger, questioning whether AC or DC is preferable.
  • One response indicates that the inquirer may be too far along in the project without sufficient foundational knowledge and suggests looking for more information online.

Areas of Agreement / Disagreement

The discussion reflects a lack of consensus on the best methods for improving wireless charger efficiency, with multiple viewpoints and suggestions presented without resolution.

Contextual Notes

Participants express varying levels of understanding about the technical aspects of wireless charging, including coil design and power supply requirements, indicating potential gaps in foundational knowledge.

zrex
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hi... now I am in progress to do a wireless charger pad by using coil. so I've seen a lot of project regarding to this wireless charging. do u have any idea how can i make it more efficiency? meaning that how can i get a maximum power transfer while transferring the power from Tx to Rx. normally i see all the project only can achieve until 57% from the actual charger by using all those clumsiness wires charger... hope u can give me any suggestion or idea .thanks. :smile:
 
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Do a load of experiments with coils and switching rates. You need to figure out what frequency you are going to operate at, learn how to obtain/wind a coil of the inductance that you want to get strong coupled resonance, and then figure out how to build an efficient power circuit to drive your Tx coil.
 
cmb said:
Do a load of experiments with coils and switching rates. You need to figure out what frequency you are going to operate at, learn how to obtain/wind a coil of the inductance that you want to get strong coupled resonance, and then figure out how to build an efficient power circuit to drive your Tx coil.

can u explain what do you mean by choosing the frequency? actually i have watch a lot of videos about the wireless charging by using inductive coil and one thing that I am not clear is what kind of power supply that we need to use? either AC or DC? :confused:
 
zrex said:
can u explain what do you mean by choosing the frequency? actually i have watch a lot of videos about the wireless charging by using inductive coil and one thing that I am not clear is what kind of power supply that we need to use? either AC or DC? :confused:

I really don't want to sound unhelpful, but you are too far down the learning curve this time around for this project. I suggest you put your time into shopping on the internet for what you are after.
 

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