Inductive energy transfer circuit proof of principle experiment

Abstract

For the conventional method of direct transfer of energy between a storage inductor and an uncoupled load inductor, the maximum energy which can be transferred to the load inductor is 25% of the initial stored energy. The Meatgrinder, a novel inductive energy storage and transfer circuit, has been shown to approach 100% energy transfer efficiency. A low-current-level experiment has been performed which has verified the predicted behavior of the inductive transfer circuit and demonstrated an energy transfer efficiency of 47.5%. In order to address the issue of the circuit operation at a higher current level, a second experiment was conducted. The peak current reached was 3.9 kA and the results verified that the current multiplication and energy transfer of the circuit does scale with current.