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http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/171| Parameter-varying lowpass filters based on switched-capacitor circuits | |
| TIMOTEO CAYETANO ANTONIO | |
| MIGUEL ANGEL GUTIERREZ DE ANDA | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| Filters Switched capacitor filters Field programmable analogue arrays | |
| In some applications, filtering circuits whose response have a short transient time are necessary. In the classical approach of filter design, the designer has no much options to manipulate the filter characteristics in the time domain because the design formulae affects the frequency-domain specifications. Parameter-varying filters posses as a chief characteristic their short transient time duration, which makes them suitable for applications in which speed is a mandatory need. The short transient is the result of a temporary variation of one or more of their descriptive parameters. Despite this advantageous feature, that has been demonstrated with solid theoretical analyses, there is still a bottle-neck in the practical implementation of these kinds of filters. In this work, an implementation of a parameter-varying filter based on switchedcapacitors (SC) is presented. This implementation is a second-order low pass SC filter on a FPAA (Field-Programmable Analog Array) development board. Theoretical aspects related to this implementation are reported, in particular stability and homogeneous response analysis. Experimental results of the parameter-varying implemented filter are presented and compared with the time-invariant counterpart. In summary, the theoretical analysis and the experimental results support the feasibility of implementing parameter-varying filters with switched-capacitor techniques. | |
| Instituto Nacional de Astrofísica, Óptica y Electrónica | |
| 2014-05 | |
| Tesis de maestría | |
| Inglés | |
| Estudiantes Investigadores Público en general | |
| Cayetano-Antonio T. | |
| ELECTRÓNICA | |
| Versión aceptada | |
| acceptedVersion - Versión aceptada | |
| Aparece en las colecciones: | Maestría en Electrónica |
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| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| CayetanoAT.pdf | 2.44 MB | Adobe PDF | Visualizar/Abrir |