Ditemukan 11 dokumen yang sesuai dengan query
Dandy Bagus Fauzan
Pada skripsi ini telah dipresentasikan desain rectifier untuk aplikasi wireless power transfer dengan topologi novel sebagai studi tahap awal. Topologi ini menggabungkan dan memodifikasi adaptive reconfigurable rectifierdengan active class E rectifier. Modifikasi yang dilakukan adalah mengganti switch NMOS pada active class E rectifiermenjadi PMOS pada topologi active class E rectifier dan mengubah jumlah dioda dan transistor yang digunakanpada topologi adaptive reconfigurable rectifier. Penggantian switch menjadi PMOS meningkatkan efisiensi dan menghasilkan output Wave form yang lebih baik. Penambahan jumlah diodadan jumlah transistor mencegah dioda mencapai breakdown voltage sehingga meningkatkan efisiensidan menjadikan rangkaian dapat mempertahankan dan meningkatkan efisiensi pada nilai inputyang lebih tinggi. Rangkaian usulan terdiri dari switch PMOS IRF9Z24 pada bagian active class E rectifier dan 3 dioda -3 transistor pada bagian adaptive reconfigurable rectifier memiliki efisiensi 76% pada input5 V dan 66% pada input10 V.
ABSTRACTThis thesis has presented a rectifier design for wireless power transfer applications with novel topology as an initial study. This topology combines and modifies the adaptive reconfigurable rectifier with the active class E rectifier. Modifications made were to replace the NMOS switch in the active class E rectifier to PMOS in the active class E rectifier topology and change the number of diodes and transistors used in the adaptive reconfigurable rectifier topology. Switching switches to PMOS increases efficiency and produces better Waveform output. Increasing the number of diodes and the number of transistors prevents the diodes from reaching the breakdown voltage, thereby increasing efficiency and allowing the circuit to maintain and increase efficiency at higher input values. The proposed circuit consists of the PMOS IRF9Z24 switch on the active class E rectifier and 3 diodes -3 transistors on the adaptive reconfigurable rectifier, which has an efficiency of 76% at 5 V."
2020
S-Pdf
UI - Skripsi Membership Universitas Indonesia Library
Hekal, Sherif
"This book addresses the design challenges in near-field wireless power transfer (WPT) systems, such as high efficiency, compact size, and long transmission range. It presents new low-profile designs for the TX/RX structures using different shapes of defected ground structures (DGS) like (H, semi-H, and spiral-strips DGS). Most near-field WPT systems depend on magnetic resonant coupling (MRC) using 3-D wire loops or helical antennas, which are often bulky. This, in turn, poses technical difficulties in their application in small electronic devices and biomedical implants. To obtain compact structures, printed spiral coils (PSCs) have recently emerged as a candidate for low-profile WPT systems. However, most of the MRC WPT systems that use PSCs have limitations in the maximum achievable efficiency due to the feeding method. Inductive feeding constrains the geometric dimensions of the main transmitting (TX)/receiving (RX) resonators, which do not achieve the maximum achievable unloaded quality factor. This book will be of interest to researchers and professionals working on WPT-related problems."
Singapore: Springer Singapore, 2019
e20503034
eBooks Universitas Indonesia Library
