Frequency Conversion Type Ultrasonic Power Based on DSP Control Technology Research

Chang You Li; Ming Ming Jia; Wen Hua Wang

doi:10.4028/www.scientific.net/AMM.442.349

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 442Frequency Conversion Type Ultrasonic Power Based...

Frequency Conversion Type Ultrasonic Power Based on DSP Control Technology Research

Abstract:

The introduction of the direct digital frequency synthesis (DDS) technology in the field of communication is against the traditional ultrasonic machining power supply which does not have the multi-frequency tracking shortcomings to build a frequency conversion type ultrasonic power. Frequency conversion type ultrasonic power supply is based on DSP embedded system and adopts direct digital frequency synthesis (DDS) technology combined with a software phase locked frequency of composite frequency tracking scheme to realize automatic search transducer resonance frequency and frequency automatic tracking function which can response the different characteristics of the transducer dynamical; With the use of phase shift control power-principle to realize the output power regulating function when the frequency changes and reduce the switching power loss; It provides an important reference for the design of new frequency conversion type ultrasonic power.

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Periodical:

Applied Mechanics and Materials (Volume 442)

Pages:

349-353

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.442.349

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Online since:

October 2013

Authors:

Chang You Li, Ming Ming Jia*, Wen Hua Wang

Keywords:

DDS, DSP, Frequency Modulation, Frequency Tracking, PS-PWM

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