Design and Simulation of Switched Capacitor Filter for Speed Change Parameter Converter

Xiao Wei Liu; Jian Yang; Song Chen; Liang Liu; Rui Zhang; Wei Ping Chen

doi:10.4028/www.scientific.net/KEM.562-565.1132

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 562-565Design and Simulation of Switched Capacitor Filter...

Design and Simulation of Switched Capacitor Filter for Speed Change Parameter Converter

Abstract:

In this paper, we design a high-order switched capacitor filter for rapid change parameter converter. This design uses a structure which consists of three biquads filter sub-units. The design is a 6^th-order SC elliptic low-pass filter, and the sample frequency is 250 kHz. By the MATLAB Simulink simulation, the system can meet the design requirements in the time domain. In this paper, the 6^th-order switched capacitor elliptic low-pass filter was implemented under 0.5 um CMOS process and simulated in Cadence. The final simulation results show that the pass-band cutoff frequency is 10 kHz, and the maximum pass-band ripple is about 0.106 dB. The stop-band cutoff frequency is 20 kHz, and the minimum stop-band attenuation is 74.78 dB.

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Periodical:

Key Engineering Materials (Volumes 562-565)

Pages:

1132-1136

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.562-565.1132

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Online since:

July 2013

Authors:

Xiao Wei Liu, Jian Yang, Song Chen, Liang Liu, Rui Zhang, Wei Ping Chen

Keywords:

Elliptical Filter, Speed Change Parameter Converter, Switched-Capacitor

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