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The EMI Noise Reduction Circuit with Random Number Generator
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 Title & Authors
The EMI Noise Reduction Circuit with Random Number Generator
Kim, Sung Jin; Park, Ju Hyun; Kim, SangYun; Koo, Ja Hyun; Kim, Hyung il; Lee, Kang-Yoon;
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This paper proposes Relaxation Oscillator with Random Number Generator to minimize electromagnetic interference (EMI) noise. DC-DC Converter with Relaxation Oscillator is presented how much spurious noise effects to RF Receiver system. The main frequency of the proposed Relaxation oscillator is 7.9 MHz to operate it and add temperature compensation block to be applied to the frequency compensation in response to temperature changes. The DC-DC Converter Spurious noise is reduced up to 20 dB through changing frequency randomly. It is fabricated in CMOS technology. The active area occupies an area of . The supply voltage is 1.8 V and current consumption is .
Relaxation Oscillator;EMI;Random Number Generator;Temperature Compensation;
 Cited by
Chengwu Tao, Ayman A. Fayed, "A buck converter with reduced output spurs using asynchronous frequency hopping", IEEE Transactions on Circuits and Systems, vol. 58, no. 11, Nov. 2011.

F. Bala, T. Nandy, "Programmable high frequency RC oscillator", in Proc. IEEE 18th Int. Conf. VLSI Des., pp. 511-515, Jan. 2005.

최진욱, 이강윤, "자동차용 저 전력 주파수 확산 클럭 스펙트럼 생성기", 대한전자공학회 추계학술대회, pp. 160-162, 2014년 10월.

김상윤, 이강윤, "Temperature sensor 기반 $\pm$1 % 이내의 주파수 정확도를 가지는 18 MHz relaxation oscllator의 설계", J. Korea Industr. Inf. Syst. Res., vol. 18, no. 5, 2013년 10월.