Title :
Design of Ultrasonic Generator Based on DDS and PLL Technology
Author :
Li, Qunming ; Zhu, Ling ; Wang, Fuliang
Author_Institution :
Coll. of Mech. & Electr. Eng., Central South Univ., Changsha
Abstract :
A new type ultrasonic generator with dynamic frequency tuning and amplitude modulation is designed in this article, with direct digital frequency synthesis (DDS) chip AD9852 being used in phase-locked loop (PLL) instead of traditional voltage controlled oscillator. On the base of the analysis for the ultrasonic generator characters, the whole ultrasonic generator system is built which consists of microprocessor control unit, signal generator, power amplifier, the feedback of voltage and current, phase detector, and low-pass filter, etc.
Keywords :
amplitude modulation; circuit tuning; digital phase locked loops; direct digital synthesis; microcontrollers; network synthesis; ultrasonic devices; AD9852 chip; DDS; PLL technology; amplitude modulation; direct digital frequency synthesis; dynamic frequency tuning; low-pass filter; microprocessor control unit; phase detector; phase-locked loop; power amplifier; signal generator; ultrasonic generator system design; Amplitude modulation; Character generation; Control system synthesis; Frequency synthesizers; Phase locked loops; Power generation; Signal generators; Signal synthesis; Tuning; Voltage-controlled oscillators;
Conference_Titel :
High Density packaging and Microsystem Integration, 2007. HDP '07. International Symposium on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-1252-8
Electronic_ISBN :
1-4244-1253-6
DOI :
10.1109/HDP.2007.4283605
