FYP 11 - WEEK 6 & 7

Objective: Constructing The Receiver circuit

Analysis/Discussion:

The receiver circuit containing : A) rectifier circuit  B) voltage regulator circuit

A) Rectifier circuit:
 This circuit was constructed using the combination of 4 diode which will create rectification process of AC to DC voltage. This 4 diode combination was called Bridge Rectifier. Bridge rectifier will eliminate the negative pulse of AC voltage hence resulting DC voltage.

B) Voltage Regulator Circuit:

Voltage regulator circuit can be used to ensure steady level of output voltage. In this case, the using of voltage regulator LM 7805 will give an output of steady 5V DC voltage. This output voltage then will be used as the final output of the system of wireless power transfer to supply low powered device. Low powered device mostly using 5V DC voltage as an input supply.

FYP II - WEEK 4 & 5

Objectives :  The simulation circuit of Transmitter coil and Testing the real circuit of transmitter

Analysis/Discussion:

In order to avoid errors when constructing the circuit of transmitter, a simulation have been done using Multisim software: There are many advantages when using software simulation before constructing real circuit. We can avoid error in case it will destroy the real component and we can verify the calculation we had made for a circuit and avoiding such repeated work for just one circuit.

This simulation purposes to measure the frequency of AC signal when applying the power mosfet IRFZ44N as inverter circuit. The result of this simulation though shows that the AC signal resulting in a form of triangle wave.

After done the simulation for transmitter circuit, the real circuit then continued as it is confirm the circuit of no error, steady and suitable for necessary result for this project.