The Design of DVCC-based Oscillators

• Main Authors: Yi-Teng Chen, 陳易騰
• Other Authors: Chun-Li Hou
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/x92746

碩士 === 中原大學 === 電子工程研究所 === 91 === Abstract This thesis mainly discusses some applications of the differential voltage current conveyor; including the realization of oscillators and its transfer relationship with OTAs. In this thesis, the first two circuits we present employing differential voltage current conveyors as active elements with grounded capacitors and resistors to synthesize oscillators. During design progress, on one hand, we apply the concept of signal flow graph to verify the correctness of the circuit theory; on the other hand, we use the simulation results from HSPICE to show the possible performances of the circuits under UMC 0.5μm 2P2M process parameters. The simulated oscillation frequencies are 4KHz and 4.2KHz,and have an error about 2% of the ideal values, and the total harmonic distortions are 3.7663% and 4.2183%, respectively. Moreover, this thesis presents a transformation to transfer OTAs into differential voltage current conveyors and the simulation results of a filter are performed to demonstrate the transformation.