Differences

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--- capacitive_wireless_power_transfer [2025/06/04 15:41] – np
+++ capacitive_wireless_power_transfer [2025/06/04 16:06] (current) – np
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 The receiver electrodes capture the energy from the electric field, converting it back into an electrical current. A rectifier circuit then converts the high-frequency AC signal into direct current. To improve efficiency, a compensation network consisting of capacitors and inductors is used on both sides to minimise power loss and enhance the strength of the coupling. The efficiency of a CPT system depends on many factors, the surface area of the electrodes, the distance between them, the properties of the dielectric material and the operating frequency. CPT is not yet commercially available due to the high frequency need and safety reasons (high voltage plates).
-The figure below shows a general representation of a four-plate CPT system to explain the basics. The other types of CPT systems will be discussed later in this chapter. The primary side consists of a power source, a high frequency inverter and a primary compensation network. The secondary side consists of the secondary compensation network, a rectifier and a load. P1 and P2 serve as transmitters, P3 and P4 as receiver.
+The figure below shows a general representation of a four-plate CPT system to explain the basics. The other types of [[CPT structures]] will be discussed in another page. The primary side consists of a power source, a high frequency inverter and a primary compensation network. The secondary side consists of the secondary compensation network, a rectifier and a load. P1 and P2 serve as transmitters, P3 and P4 as receiver.
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-If the distance between the plates increases, the value of k will decrease and vice versa. The switching frequency needs to be increased when k decreases to obtain a sufficient power level. This will drop the system’s total efficiency due to higher switching losses. Also, higher resonant inductors are required which lead to even lower efficiencies due to higher conduction losses. This proves that Compensation Networks affect the overall efficiency of the system and needs to be properly designed.
+If the distance between the plates increases, the value of k will decrease and vice versa. The switching frequency needs to be increased when k decreases to obtain a sufficient power level. This will drop the system’s total efficiency due to higher switching losses. Also, higher resonant inductors are required which lead to even lower efficiencies due to higher conduction losses. This proves that [[Compensation Networks]] affect the overall efficiency of the system and needs to be properly designed.