Maximizing Wireless Charger Efficiency

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SUMMARY

The discussion focuses on maximizing the efficiency of wireless charger pads using inductive coils. Key strategies include experimenting with coil designs, optimizing switching rates, and selecting the appropriate operating frequency for strong coupled resonance. Participants emphasize the importance of building an efficient power circuit to drive the transmitter (Tx) coil. The conversation highlights the need for clarity on power supply types, specifically whether to use AC or DC for optimal performance.

PREREQUISITES
  • Understanding of inductive coil design and winding techniques
  • Knowledge of power circuit design for wireless charging systems
  • Familiarity with operating frequencies in wireless power transfer
  • Experience with AC and DC power supply characteristics
NEXT STEPS
  • Research coil winding techniques for optimal inductance
  • Learn about resonant frequency calculations for wireless charging
  • Explore efficient power circuit designs for Tx coils
  • Investigate the differences between AC and DC power supplies in wireless applications
USEFUL FOR

Engineers, hobbyists, and developers involved in wireless charging technology, particularly those looking to enhance the efficiency of inductive charging systems.

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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