Wireless power transfer (WPT) is an innovative technology that wirelessly delivers electrical power from a power source to electrical devices. WPT uses a specific frequency for its operation. A desired frequency of the switching signal is difficult to be set for the suitable driver to a driving terminal of the switching components, which will impact the performance of WPT. The output voltage and output current values are also low when the distance between the transmitter and receiver coil increases. The output power is also affected by an inappropriate frequency system and when the output voltage and output current are not maximized. To overcome this problem, the WPT system method with a system frequency of 5 kHz is used in this study to get a suitable frequency system. The switching system of the transmitter system uses twelve transistors. In the study, a multireceiver is also used, which will use several receiver coil configurations with diameters of 50 cm, 16 cm, and 9 cm. This configuration is done to increase the value of the output DC voltage and output DC current. The study was carried out by validating the design with simulation results. The result shows that the performance of the WPT system is valid for the experimental and simulation results based on the error percentage. Improvement of the efficiency value in coil-16, which was originally valued at 14.19% to 61.00%, and the increase in efficiency in coil-9, which was originally valued at 21.99% to 74.84%.
