Second-Order Oscillator Using OTRAs And Resistors Without Capacitors
碩士 === 中原大學 === 電機工程研究所 === 100 === Operational Trans-conductance Amplifier (OTA) is recognized as the best active components in the analog circuit design. Operational trans-resistance amplifier (OTRA) has a dual relationship with OTA. There are the potential advantages in the design of circuit, so...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Others |
Language: | zh-TW |
Published: |
2012
|
Online Access: | http://ndltd.ncl.edu.tw/handle/82410473709770167660 |
id |
ndltd-TW-100CYCU5442033 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-TW-100CYCU54420332015-10-13T21:32:35Z http://ndltd.ncl.edu.tw/handle/82410473709770167660 Second-Order Oscillator Using OTRAs And Resistors Without Capacitors 以OTRA及電阻器而不使用電容器所設計之二階振盪電路 YUAN-JIA LIANG 梁原嘉 碩士 中原大學 電機工程研究所 100 Operational Trans-conductance Amplifier (OTA) is recognized as the best active components in the analog circuit design. Operational trans-resistance amplifier (OTRA) has a dual relationship with OTA. There are the potential advantages in the design of circuit, so OTRA is used an active components to design the circuit in this thesis. In the past, designer used to let Rm approach to infinity, but it lead to more inaccuracy. In this thesis, Rm approach to a finite valueRm(s)=Rmo/(1+s/wo)and ,the(s/wo)>>1. Now,Rm(s)=1/s*(1/Rmo*wo) approximate equivalent transfer 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. This way lets inaccuracy smaller. According to analytical synthesis method, I will design second-order oscillator by using two OTRAs and three resistors without capacitors. The result simulated and regulated conformed to the result I assumed, and it had the minimum error. Another major contribution in this thesis is to control the amplitude value. When I change the internal ratio of OTRA’s length and width, the equivalent capacitance values were changed. Controlling Vbias let that the equivalent capacitance values were unchanged. Therefore, amplitude value is smaller. The result is entirely correct in accordance with the law of conservation of energy. The circuit was simulated with TSMC 035um process by H-Spice. Controlling output amplitude value is important in this thesis. JYUN-MING JHANG 張俊明 2012 學位論文 ; thesis 91 zh-TW |
collection |
NDLTD |
language |
zh-TW |
format |
Others
|
sources |
NDLTD |
description |
碩士 === 中原大學 === 電機工程研究所 === 100 === Operational Trans-conductance Amplifier (OTA) is recognized as the best active components in the analog circuit design. Operational trans-resistance amplifier (OTRA) has a dual relationship with OTA. There are the potential advantages in the design of circuit, so OTRA is used an active components to design the circuit in this thesis.
In the past, designer used to let Rm approach to infinity, but it lead to more inaccuracy. In this thesis, Rm approach to a finite valueRm(s)=Rmo/(1+s/wo)and ,the(s/wo)>>1. Now,Rm(s)=1/s*(1/Rmo*wo) approximate equivalent transfer 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. This way lets inaccuracy smaller. According to analytical synthesis method, I will design second-order oscillator by using two OTRAs and three resistors without capacitors. The result simulated and regulated conformed to the result I assumed, and it had the minimum error.
Another major contribution in this thesis is to control the amplitude value. When I change the internal ratio of OTRA’s length and width, the equivalent capacitance values were changed. Controlling Vbias let that the equivalent capacitance values were unchanged. Therefore, amplitude value is smaller. The result is entirely correct in accordance with the law of conservation of energy. The circuit was simulated with TSMC 035um process by H-Spice. Controlling output amplitude value is important in this thesis.
|
author2 |
JYUN-MING JHANG |
author_facet |
JYUN-MING JHANG YUAN-JIA LIANG 梁原嘉 |
author |
YUAN-JIA LIANG 梁原嘉 |
spellingShingle |
YUAN-JIA LIANG 梁原嘉 Second-Order Oscillator Using OTRAs And Resistors Without Capacitors |
author_sort |
YUAN-JIA LIANG |
title |
Second-Order Oscillator Using OTRAs And Resistors Without Capacitors |
title_short |
Second-Order Oscillator Using OTRAs And Resistors Without Capacitors |
title_full |
Second-Order Oscillator Using OTRAs And Resistors Without Capacitors |
title_fullStr |
Second-Order Oscillator Using OTRAs And Resistors Without Capacitors |
title_full_unstemmed |
Second-Order Oscillator Using OTRAs And Resistors Without Capacitors |
title_sort |
second-order oscillator using otras and resistors without capacitors |
publishDate |
2012 |
url |
http://ndltd.ncl.edu.tw/handle/82410473709770167660 |
work_keys_str_mv |
AT yuanjialiang secondorderoscillatorusingotrasandresistorswithoutcapacitors AT liángyuánjiā secondorderoscillatorusingotrasandresistorswithoutcapacitors AT yuanjialiang yǐotrajídiànzǔqìérbùshǐyòngdiànróngqìsuǒshèjìzhīèrjiēzhèndàngdiànlù AT liángyuánjiā yǐotrajídiànzǔqìérbùshǐyòngdiànróngqìsuǒshèjìzhīèrjiēzhèndàngdiànlù |
_version_ |
1718065452019613696 |