transducer current limiter circuit

  
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Drive an ultrasonic transducer by using this driver circuit. I have a quesiton for this operation. How can I limit my output current I am using a 60W transducer and maybe it can be damaged because of the output current. Could you direct me, or share sample to add this limiter circuit Applications: High-power ultrasonic applications such as ultrasonic cleaning tanks,
transducer current limiter circuit - schematic

ultrasonic plastic welding, ground sonar transducer, Bio Diesel mixer transducer, Solid separation transducer, stop organism growth on boat hull, Biodiesel mixing transducer, High-Torque Traveling Wave Ultrasonic Motor and others. Notes: For the thickness of the ring transducer used (5. 5mm), the maximum input voltage is 1, 650V but the power output should not exceed 70W for single transducer or 50W for parallel setup. If the temperature is higher than 120C the transducer will depolarize and maybe fracture. So the operating voltage suggested is between 450-500V.



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