Title :
A design and implementation of edge controller for SPWM waves
Author :
Lin, Fan ; Li, Kun ; Liu, Yang
Author_Institution :
Sch. of Aerosp. Sci., Beijing Inst. of Technol., Beijing, China
Abstract :
SPWM (Sinusoidal Pulse Width Modulation) waves are commonly used in the control of frequency conversion and test system. This paper presents a method which can control SPWM waves rising/falling time for the requirements of controlled edge. This function mainly for a high power device test systems. First, SPWM waves are generated by a generator programmed by LabVIEW, and the SPWM waves´ dead time and frequency of carrier signals and modulation signals can be easily regulated by LabVIEW. Second, SPWM waves rising / falling time is adjusted by edge controller. The experimental results indicate that SPWM waves edge time adjusts from 0.1μs to 12μs can be achieved using this design.
Keywords :
automatic testing; pulse width modulation; virtual instrumentation; LabVIEW program; SPWM waves; carrier signals; edge controller; frequency conversion system; high power device test systems; modulation signals; sinusoidal pulse width modulation; test system; time 0.1 mus to 12 mus; wave falling time; wave rising time; Capacitance; Capacitors; Control systems; Frequency modulation; Switching circuits; Time frequency analysis; Constant current source; High-speed switch; Rising/Fallingedge; SPWM;
Conference_Titel :
Information and Automation (ICIA), 2011 IEEE International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4577-0268-6
Electronic_ISBN :
978-1-4577-0269-3
DOI :
10.1109/ICINFA.2011.5949096
