Duty Cycle Tuning by Using Fuzzy Logic for High-Voltage Generators

The nutritional crisis is predicted to hit the world soon. The cause of this condition is the lack of intake and access to food with balanced nutrition. One solution to overcome this problem is to improve the quality of food. This can be done by improving food processing. One of the potential technological breakthroughs in the field of food processing is PEF technology. The way it works is by providing a shock voltage of a certain duration for certain foodstuffs. The provision of this shock voltage serves to produce an electric field in the food ingredients so that the electroporation process occurs in certain food ingredients. This voltage adjustment needs to be done so that the inactivation process occurs properly. To implement PEF technology, it is necessary to use a high voltage pulse generator that can generate a shock voltage with a certain frequency. This journal discusses control design and high voltage pulse generator circuits. The planned control method uses fuzzy logic control and the circuit design uses an ignition coil based circuit. This generator is expected to be able to vary the value of the output voltage, so that the high voltage pulse generator can be applied to several different media. The test results of the control circuit show that the fuzzy logic control method can produce a good response. This is indicated by the average error value of the test results of not more than 4%.