OTRA-based Second-order Lowpass and Bandpass Butterworth Filter without Capacitors
碩士 === 中原大學 === 電機工程研究所 === 99 === Operational Trans-Conductance Amplifier (OTA) is analog design accepted best active component count at present. It has the relation of the input and output of the Io = (V+ - V-)Gm, and OTA contradistinction of another active component count Operational Trans-Resist...
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ndltd-TW-099CYCU54420102019-05-15T20:42:25Z http://ndltd.ncl.edu.tw/handle/r7a82r OTRA-based Second-order Lowpass and Bandpass Butterworth Filter without Capacitors 以運算轉阻放大器設計無電容之二階低通及帶通巴特沃茲濾波器 Chi-Hui Yu 游麒卉 碩士 中原大學 電機工程研究所 99 Operational Trans-Conductance Amplifier (OTA) is analog design accepted best active component count at present. It has the relation of the input and output of the Io = (V+ - V-)Gm, and OTA contradistinction of another active component count Operational Trans-Resistance Amplifier (OTRA), it has the relation of the input and output of the Vo = (I+ - I-)Rm, these two component counts has relation of antithesis, so OTRA is best choice by the circuit design scholars recent years, and this thesis also using OTRA design circuit. The output signal of OTRA is Vo = (I+ - I-)Rm, and previous OTRA circuits are used gain of the OTRA infinite, but the output voltage are finite, so both input current are equal. But this thesis use gain of the OTRA finite, we take the maximum gain and bandwidth equal a capacitor. When design circuits, have three emphases: 1.Each equation has to include equal transfer capacitor. 2. In the equation, the other moved to the other side of the equation, except equal transfer capacitor, positive terminal inputs of Circuit are positive. 3. Negative terminal inputs of Circuit are negative. 4. Equation not include (Vi - Vj)G;i≠j. Using this four emphases and admittance matrix analytical synthesis, we make the transfer function into a matrix and decomposed into two equations, each equation can be achieved by an OTRA and several resistances. Then we complete the circuit in this thesis. The simulation of this thesis is use H-Spice and TSMC 035um. The product of maximum gain and bandwidth will be affected by open loop, close loop, circuit structure, and input frequency. So how to find the appropriate product of maximum gain and bandwidth are very important in this simulation. Chun-Ming Chang(張俊明) 張俊明 2011 學位論文 ; thesis 119 zh-TW |
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碩士 === 中原大學 === 電機工程研究所 === 99 === Operational Trans-Conductance Amplifier (OTA) is analog design accepted best active component count at present. It has the relation of the input and output of the Io = (V+ - V-)Gm, and OTA contradistinction of another active component count Operational Trans-Resistance Amplifier (OTRA), it has the relation of the input and output of the Vo = (I+ - I-)Rm, these two component counts has relation of antithesis, so OTRA is best choice by the circuit design scholars recent years, and this thesis also using OTRA design circuit.
The output signal of OTRA is Vo = (I+ - I-)Rm, and previous OTRA circuits are used gain of the OTRA infinite, but the output voltage are finite, so both input current are equal. But this thesis use gain of the OTRA finite, we take the maximum gain and bandwidth equal a capacitor. When design circuits, have three emphases: 1.Each equation has to include equal transfer capacitor. 2. In the equation, the other moved to the other side of the equation, except equal transfer capacitor, positive terminal inputs of Circuit are positive. 3. Negative terminal inputs of Circuit are negative. 4. Equation not include (Vi - Vj)G;i≠j. Using this four emphases and admittance matrix analytical synthesis, we make the transfer function into a matrix and decomposed into two equations, each equation can be achieved by an OTRA and several resistances. Then we complete the circuit in this thesis.
The simulation of this thesis is use H-Spice and TSMC 035um. The product of maximum gain and bandwidth will be affected by open loop, close loop, circuit structure, and input frequency. So how to find the appropriate product of maximum gain and bandwidth are very important in this simulation.
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author2 |
Chun-Ming Chang(張俊明) |
author_facet |
Chun-Ming Chang(張俊明) Chi-Hui Yu 游麒卉 |
author |
Chi-Hui Yu 游麒卉 |
spellingShingle |
Chi-Hui Yu 游麒卉 OTRA-based Second-order Lowpass and Bandpass Butterworth Filter without Capacitors |
author_sort |
Chi-Hui Yu |
title |
OTRA-based Second-order Lowpass and Bandpass Butterworth Filter without Capacitors |
title_short |
OTRA-based Second-order Lowpass and Bandpass Butterworth Filter without Capacitors |
title_full |
OTRA-based Second-order Lowpass and Bandpass Butterworth Filter without Capacitors |
title_fullStr |
OTRA-based Second-order Lowpass and Bandpass Butterworth Filter without Capacitors |
title_full_unstemmed |
OTRA-based Second-order Lowpass and Bandpass Butterworth Filter without Capacitors |
title_sort |
otra-based second-order lowpass and bandpass butterworth filter without capacitors |
publishDate |
2011 |
url |
http://ndltd.ncl.edu.tw/handle/r7a82r |
work_keys_str_mv |
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