Title :
Control system for ultrasonic welding devices
Author_Institution :
Univ. "Politeh." din Timisoara, Timisoara
Abstract :
The paper presents a control system for an ultrasonic welding device, based on a power inverter, working in commutation, at high frequency, with a frequency control system and an automatic equipment for command. The inverter fed an ultrasonic piezoelectric transducer to activate an ultrasonic welding tool. The frequency control system is based on a feedback after the estimated movement current through the power ultrasonic piezoelectric transducer. This control system assures a higher efficiency of the energy conversion and greater frequency stability.
Keywords :
frequency control; invertors; piezoelectric transducers; ultrasonic transducers; ultrasonic welding; welding equipment; control system; frequency control system; power inverter; ultrasonic piezoelectric transducer; ultrasonic welding devices; ultrasonic welding tool; Automatic control; Control systems; Energy conversion; Feedback; Frequency control; Frequency conversion; Frequency estimation; Inverters; Piezoelectric transducers; Welding;
Conference_Titel :
Automation, Quality and Testing, Robotics, 2008. AQTR 2008. IEEE International Conference on
Conference_Location :
Cluj-Napoca
Print_ISBN :
978-1-4244-2576-1
Electronic_ISBN :
978-1-4244-2577-8
DOI :
10.1109/AQTR.2008.4588809
