NDLI: Oscillator design based on frequency jitter technique

Content Provider	IEEE Xplore Digital Library
Author	Renzhong Zheng Jianli Xing Zhimin Lin Jianfeng Zhang
Copyright Year	2009
Description	Author affiliation: Institute of modern circuits and system technology, Department of Electronic Engineering of Xiamen University, China (Renzhong Zheng; Jianli Xing; Zhimin Lin; Jianfeng Zhang)
Abstract	Concerning switching-mode power supply, voltage or current transformation for power conversion is conducted by high speed semiconductor device, while high voltage or current spike produced in the process of switching causes serious electromagnetic interference noises. Ordinary DC/DC converters work under fixed switching frequency mode, so the spectrum is discrete and the energy concentrate at the low frequency, commonly the noises caused in the process of switching need to be reduced by EMI filter. Frequency modulation technique in DC/DC converter for EMI suppression is studied in this paper and based on this theory currentcontrolled oscillator with periodic frequency modulation is introduced to suppress EMI noises, thus minimizing EMI filter component costs. The simulation results of oscillator output show high current control linearity and precise duty cycle.
Starting Page	299
Ending Page	302
File Size	215783
Page Count	4
File Format	PDF
ISBN	9781424438839
DOI	10.1109/ICASID.2009.5276917
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-20
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Semiconductor device noise frequency jitter EMI suppression DC-DC power converters Jitter DC/DC converter Oscillators Oscillator design Filters Electromagnetic interference periodic modulation Voltage current-controlled Frequency Low-frequency noise Power semiconductor switches
Content Type	Text
Resource Type	Article

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