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This paper presents a compact push-pull current-fed parallel resonant converter suitable for implementing a Transcutaneous Energy Transmission (TET) system to power heart assist devices. The new circuit topology integrates all three magnetic components of a conventional current-fed push-pull resonant converter including the DC inductor, phase splitting transformer and primary coil inductor into a...
This paper presents a novel method of inductively powering an implantable telemetry device over a large area. The system is based around an array of individually tuned series resonant circuits distributed across a charging pad. By varying the frequency of the driving voltage, the location of the charging field is changed. Presented are a method of controlling the resonant frequency and techniques...
Zero voltage switching (ZVS) is critical for reliable operation of standard current-fed parallel resonant inverters. Under steady-state conditions, ZVS can be achieved using common techniques such as a phase lock loop, a voltage controlled oscillator, and other integral controllers. However, during transient processes, achieving ZVS is not trivial for such controllers and consequently switch failure...
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