Week 6 : Comparison with other wireless charger

Objectives:

1. To compared the previous design of wireless charger with other design
2. To compared the range of the power that being transferred by these two devices

Methods:

1. By making research on internet
2. Comparing the previous design with a product that has been marketed

Results:

Figure 1: transmitter circuit  or platform which contain coils inside it

Figure 2: the receiver

Figure 3: As we can see, the receiver also contain with coils.

Conclusion:

As for conclusion, I found that the design that being used is much more attractable and much more effective than the previous design that looked quite clutter or unmanaged. This design also shows that the range that the wireless power can be transmitted is quite better than the previous design. This technology also known as Qi (pronounce as chi).  This technology also using the same working principle as previous project, which is using inductive coupling method. The coupling method is the principle on how the transformer work when there is an air gap between the transformers. The primary coil and the secondary coil are not directly connected each other. Each coil has their own circuit. Energy transfer took place through a process known as mutual induction.