Design of Handphone Wireless Charger System Using Omnidirectional Antenna
Abstract: Using cable as power
transmission medium cause problem in flexibility and aesthetics. Wireless power
transmission for charging handphone released nowadays still using antenna with
radiation pattern focus in one direction, that is just toward the top, and if
the antenna was shifted then power transmitted will be lose. The purpose of
this research is to produce wireless power charger system used for charging
handphone power using resonator based on omnidirectional antenna and test the
performance.The device in this research was designed in two main part, that is
transmitter and receiver. In transmission section, there is power supply used
for supplying power to oscillator to generate oscillating signal in the form of
electrical power to be transmitted to receiver via antenna in the form magnetic
field. In receiver section, receiver antenna received the power transmitted
that is still in the reach of magnetic field generated by transmitter. The
power that is still in the form of oscillating signal, then stabilized for the
purpose of handphone power using rectifier and voltage regulator. Design has
been made successfully to the form of handphone battery power wireless charger
using omdirectional antenna which consist of two main part, that is transmitter
and receiver. The transmitted power is 3.058 watt with frequency 714 KHz, and
receiver received the power and then stabilized the signal to produce output
power 58.706 miliwatt. This device can transmit power in all directions horizontally
(angle 360 ° ). This device also tested with some kind of obstacle, with the
result almost all obstacle still could transmit the power except metal.
Penulis: Anton Yudhana,
Fahrizal Djohar
Kode Jurnal: jptkomputerdd170105