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Transcutaneous energy transfer (TET) enables the transfer of power across the skin without direct electrical connection. It is a mechanism for powering implantable devices for the lifetime of a patient. For maximum power transfer, it is essential that TET systems be resonant on both the primary and secondary sides, which requires considerable design effort. Consequently, a strong need exists for an...
This paper presents the design and implementation of contactless power couplers for transferring power to heat up the breathing tube and sensors of respiratory devices produced by Fisher & Paykel Healthcare Ltd, NZ. The respiratory device supplies humidified air to the patient through an air delivery tube. The air needs to be heated along the tube to prevent condensation and a sensor has to be...
This paper presents a power flow control method for contactless power transfer systems. The proposed method is to control the magnitude of the primary track current based on the concept of energy injection and regeneration. The stored energy and resonant current is controlled to vary on the primary side. As a result, the induced current on the secondary side varies. For such a reason, the power flow...
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