A master thesis from Aalborg University
Portable cancer treatment using induction heating
Author(s)
Term
4. term
Education
Publication year
2012
Submitted on
2012-05-30
Pages
121 pages
Abstract
This master thesis presents a resonant converter for future use in cancer treatment. This therapy is called Hyperthermia and takes advantage of the induction heating to burn the cancer cells. One high frequency inductor will produced the induction heating getting fed by an electronic converter. The topology of the converter is half bridge and the inductor is installed inside a resonant tank. The proposed converter is simulated and implemented in the laboratory. The current produced by the inductor is controlled by the switching frequency of the MOSFETS and this is obtained by a PWM signal produced by a microcontroller. To control the whole loop a digital controller was implemented inside the microcontroller, measuring the current in the output of the inductor and taking a reference from the user, it will produce a corrective signal that will generate an adequate PWM signal for the specifications in the reference. Moreover a crowbar protection circuit is designed with a digital control that will disconnect the system in case that a failure comes up. All the setup is implemented in the laboratory. Test results from the setups are discussed in the report.
Keywords
Documents
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