The experimental analysis of Class E converter circuit for inductive power transfer applications

Investigations on Capacitor Compensation Topologies Effects of Different Inductive Coupling Links Configurations

“…So, series capacitor compensation secondary acts as a voltage source that supplied a stable voltage [20]. From the measurement of laboratory session, coupling coefficient as in Figure 4 determined from the following equation after the voltage applied to the primary coil, V 1 and secondary coil, V 2 are measured during relative open loop voltage as follows [21]: (1) where L 1 is transmitter coil and L 2 is receiver coil, are linked together. If the two identical coilshave the same inductance value, the coupling factor, k is determined by (2) In short, the main factors that affect the coupling factor, k value are the air gap distance between the two coils and their relative size.…”

“…So, the impedance transformation is accomplished by tapping the inductor and capacitor (L-C) circuit. Next, Class E converter circuit is a DC resonance supply that offers a great efficiency in wireless power transfer due to its theoretical has zero switching losses [6] [16]. It is used to convert DC electrical energy into electromagnetic field energy [17].…”

Implementation of a MIMO system for Wireless Power Transfer Using Acoustic Approach

“…This is to limit the input current to be a constant current. The shunt capacitor, C shunt across the switch is to shape drain voltage and current waveform during on to off transition and a net series load inductance offer the required phase shift for the fundamental wave and behave as a harmonic open circuit [15]. Series capacitor, C series and series inductor L series act as a filter to reduce the harmonic effects at sine wave.…”

“…[19]. Since Class E converter circuit fulfills the ZVS/ZDS condition, thus, the power loss in Class E converter circuit can be minimized to zero during the switching operation [15], thus increses the efficiency of the energy transfer.…”

“…The primary transducer should be driven at a specific frequency and is normally represented in a sinusoidal waveform to obtain the best performance that is matched with the propagation medium [14]. In this paper, a Class E power converter is used as a power converter due to its simplicity and theoretically it can produce zero switching losses, besides its simplicity and only has a single switch component that need to be controlledas published in [15]- [17] for high frequency inductive CET.…”